JP2001274608A - Millimeter wave circuit, method of manufacturing the same, transmitting / receiving apparatus, and radar apparatus - Google Patents

Abstract

(57) [Summary] To provide a millimeter-wave circuit which enables automatic mounting, has high mass productivity, is easy to develop in a wide variety of products, and provides stable performance, and a method of manufacturing the same. An NRD guide having a dielectric line sandwiched between upper and lower conductor plates (3, 2) is provided, and the dielectric line is divided into predetermined lengths to form divided line parts (1-1 to 1-n). The divided line components 1-1 to 1-n are arranged in the signal transmission direction 4 at a predetermined interval g to form a straight line. With this configuration, by dividing the dielectric line and making it smaller,
By enabling automatic mounting, mass productivity can be improved, multi-product development can be easily performed, and stable performance can be obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a millimeter-wave circuit mainly using an NRD guide technology, a method of manufacturing the same, a transmitting / receiving apparatus, and a radar apparatus. The present invention relates to an easy millimeter wave circuit and a method for manufacturing the same, and a transmitting / receiving device and a radar device using the same.

[0002]

2. Description of the Related Art Conventionally, an NRD guide (nonradiative dielectric line) has been used as one of transmission lines constituting a millimeter wave circuit. As a circuit block to which the NRD guide technique is applied, for example, an NRD guide directional coupler as disclosed in Japanese Patent Application Laid-Open No. 8-8621 is known.
Further, for example, an NRD guide mixer as disclosed in JP-A-10-75125 is known. Also, for example, an NRD guide circulator as disclosed in Japanese Patent Application Laid-Open No. 9-186507 is known. Further, for example, JP-A-6-177650 and JP-A-6-26
An NRD guide FM modulation oscillator as disclosed in Japanese Patent No. 8445 is known.

[0003] For example, there is known an NRD guide circuit combining a substrate on which a semiconductor is mounted as disclosed in Japanese Patent Application Laid-Open No. 8-8603. Further, for example, a leaky wave NR as disclosed in JP-A-6-209210 is disclosed.
D guides and various antennas using the same are known. Further, for example, a transmission / reception device and a radar device configured by combining various NRD guide blocks described above as disclosed in Japanese Patent Application Laid-Open No. 10-22864 are known.

As a method of manufacturing a millimeter wave circuit to which the above-mentioned NRD guide is applied, for example, Japanese Unexamined Patent Publication No.
A method (a substrate VIA manufacturing method) using a through hole (VIA hole) of a dielectric substrate as disclosed in 303609 has been proposed. Further, as another manufacturing method, for example, as disclosed in Japanese Patent Application Laid-Open No. 9-219608, a method of fixing a dielectric line with a metal pin inserted therein (pin fixing manufacturing method) has been proposed. Further, as another manufacturing method, for example, Japanese Patent Laid-Open No. 9-2
As disclosed in Japanese Patent Application Laid-Open No. 19601, a method of fixing a substrate on which a semiconductor is mounted with a coaxial connector (connector fixing manufacturing method) has been proposed.

[0005] As another manufacturing method, for example, as disclosed in Japanese Patent Application Laid-Open No. 6-260814, a method of previously forming a dielectric line on a conductor plate and bonding the conductor plate (conductor plate) is used. Upper line forming manufacturing method) has been proposed. Further, as another manufacturing method, for example,
As shown in JP-78913-A, a circuit block constituted by an NRD guide is treated as an individual component,
A method has been proposed in which these circuits are individually tested and then combined to form a circuit (a multi-block manufacturing method). In addition, an automatic mounting machine that sucks and mounts chip components on a substrate as disclosed in Japanese Patent Application Laid-Open No. 6-61692 is used. Further, a conductive adhesive as disclosed in JP-A-1-304604 is known.

[0006]

However, the above-mentioned conventional NRD guide, a directional coupler using the NRD guide, a mixer, a circulator, an FM modulation oscillator, a leaky wave NRD guide, a millimeter wave circuit using the same, and a transmitting / receiving apparatus In addition, in the radar device, it is necessary to cut out the dielectric line to an accurate size from the dielectric or prepare it by integral molding in accordance with the circuit function and the arrangement of each block, and there is a problem that the versatility as a component is lacking. . In addition, the dielectric line has a length of, for example, several tens of mm or more, and a method of mounting the dielectric line on a conductive plate is limited. For example, there is a problem that it cannot be applied to automatic mounting by an automatic mounting machine.

In addition, there is a portion where the characteristics greatly fluctuate due to a change in the dimension of the gap (gap) between the dielectric line and other circuit elements, and the stability of the performance is low due to the fluctuation of the component position after mounting. was there. Further, the conventional substrate VI
The manufacturing method A is advantageous in terms of achieving integration by a semiconductor package, but has the problem that many types of integrated circuits (ICs) need to be prepared in order to develop a wide variety of products. there were. Further, the conventional pin fixing manufacturing method has a problem that it cannot cope with automatic mounting.

Further, in the above-mentioned conventional method for forming a line on a conductive plate, the process of fixing and forming the dielectric line on the conductive plate is complicated. There is a problem that it is necessary to prepare the formed conductor plate. In addition, the above-described conventional multi-block manufacturing method is advantageous in terms of multi-product development that various devices can be configured by preparing several types of functional blocks, but the method of manufacturing each functional block itself is as described above. N
Due to the method of manufacturing the RD guide, there is the same problem as described above.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems. A millimeter wave circuit which enables automatic mounting, has high mass productivity, is easy to deploy in a wide variety of products, and provides stable performance. An object of the present invention is to provide a manufacturing method, a transmitting / receiving device, and a radar device.

[0010]

According to the present invention, there is provided a millimeter wave circuit comprising a dielectric line between upper and lower conductor plates.
The RD guide has a configuration in which the dielectric line is divided into predetermined lengths to be divided line parts, and the divided line parts are arranged at predetermined intervals in a signal transmission direction to form a straight line. ing. With this configuration, by dividing the dielectric line and enabling automatic mounting, mass productivity can be improved, multi-product development can be easily performed, and stable performance can be obtained.

A millimeter wave circuit according to the present invention is an NRD guide comprising a bent dielectric line having a predetermined radius of curvature sandwiched between upper and lower conductor plates, wherein the bent dielectric line is divided into predetermined lengths and divided. As the line component, the divided bent line component is arranged at predetermined intervals in the signal transmission direction to form a bent line. With this configuration, the bent dielectric line is divided,
By enabling automatic mounting, mass productivity can be improved, multi-product development can be easily performed, and stable performance can be obtained.

A millimeter wave circuit according to the present invention has a configuration in which a directional coupler is formed by adjoining a straight line according to claim 1 and a curved line according to claim 2 at a predetermined interval. I have. With this configuration, a directional coupler that can be automatically mounted, improves mass productivity, and can be easily developed in a wide variety of products can be obtained by being configured with the divided bent dielectric lines.

A millimeter-wave circuit according to the present invention is a divided line component formed by dividing a dielectric line into a predetermined length and sandwiched between upper and lower conductor plates, and a narrow portion and a wide portion at the center of the dielectric line. Comprises a mode suppressor formed by inserting a metal plate formed so as to be repeated at intervals of a quarter wavelength of a TEM wave, and the split line component and the mode suppressor are separated from each other at a predetermined interval in a signal transmission direction. It has a configuration of being arranged. With this configuration, by arranging the mode suppressors, it is possible to configure a high-performance millimeter wave circuit in which unnecessary modes are suppressed.

A millimeter-wave circuit according to the present invention has a ferrite resonator composed of a ferrite plate and a dielectric spacer, and a narrow portion and a wide portion at the center of the dielectric line.
A circulator component constituted by a mode suppressor formed by inserting a metal plate formed so as to be repeated at intervals of a quarter wavelength of the M wave, wherein the circulator component and the dielectric line are divided into predetermined lengths; The NRD guide circulator is configured by arranging the divided line components at a predetermined interval. With this configuration, it is possible to provide an NRD guide circulator that uses a circulator component and enables automatic mounting of the split line component, thereby improving mass productivity and easily deploying a wide variety of products.

In the millimeter wave circuit according to the present invention, a non-reflective terminal component formed by inserting a resistive film and a dielectric sheet at the center of a dielectric line, and the non-reflective terminal component and the split line component are provided in a predetermined manner. It has a configuration of arranging at intervals. With this configuration, it is possible to provide an NRD guide non-reflection termination capable of improving mass productivity and easily developing a wide variety of products by using a non-reflection termination component and automatically mounting a split line component.

A millimeter wave circuit according to the present invention comprises a Gunn diode mounted in a metal housing, a metal strip resonator for transmitting a millimeter wave signal oscillated from the Gunn diode, and a narrow portion at the center of the dielectric line. And a mode suppressor formed by inserting a metal plate formed so that a wide portion repeats at an interval of a quarter wavelength of the TEM wave. The gun oscillator component, the split line component, Are arranged at predetermined intervals to form a Gunn oscillator. With this configuration, by enabling the split line components to be automatically mounted, mass productivity can be improved and multi-product development can be easily performed.

The millimeter wave circuit according to the present invention includes a semiconductor mount component in which a dielectric substrate on which a semiconductor is mounted is sandwiched between two split line components, and the semiconductor mount component and the split line component are separated by a predetermined distance. It has a configuration of arranging. With this configuration, by enabling the split line components to be automatically mounted, mass productivity can be improved and multi-product development can be easily performed.

The millimeter wave circuit according to the present invention electrically connects the pattern on the circuit board attached to one of the upper and lower conductor plates constituting the NRD guide to the pattern on the board of the semiconductor mount component. And a bias is supplied. With this configuration, the electrical connection is made in a pattern on the circuit board, and the divided line components can be automatically mounted, so that mass productivity can be improved and a wide variety of products can be easily developed.

The millimeter-wave circuit according to the present invention comprises a plurality of semiconductor mounting parts on which a Schottky barrier diode is mounted as the semiconductor, and a pattern on a circuit board adhered to one of upper and lower conductor plates constituting an NRD guide. A configuration in which a pattern on the substrate of the semiconductor mount component is electrically connected, and a divided circuit component of the plurality of semiconductor mount components and another divided line component are arranged at a predetermined interval to form a mixer circuit. have. With this configuration, a Schottky barrier diode is mounted,
By enabling the split line components to be automatically mounted, it is possible to provide a mixer circuit that can improve mass productivity and can be easily developed in various types.

The millimeter-wave circuit according to the present invention includes a semiconductor mounting component on which a varactor diode is mounted as the semiconductor, and a pattern on a circuit board attached to one of upper and lower conductor plates constituting an NRD guide and the semiconductor. A pattern on the substrate of the mount component is electrically connected, and the split line component of the semiconductor mount component and another split line component are arranged at predetermined intervals to constitute a frequency modulator. ing. With this configuration, a varactor diode can be mounted, and the split line component can be automatically mounted, thereby improving the mass productivity and providing a frequency modulator that can be easily developed in a wide variety of products.

The millimeter wave circuit according to the present invention is as follows.
And the Gunn oscillator according to claim 7 are arranged at a predetermined interval to constitute an FM modulation oscillator. With this configuration, a varactor diode can be mounted and the split line component can be automatically mounted, thereby improving the mass productivity and providing an FM modulation oscillator that can be easily developed in various types.

The millimeter wave circuit according to the present invention includes a gap component in which two divided line components are fixed at a predetermined interval by a thin conductor plate, and the gap component and another divided line component are separated by a predetermined interval. It has a configuration of being arranged at a distance. With this configuration, by using a gap component and enabling the split line component to be automatically mounted, mass productivity can be improved, multi-product development can be easily performed, and stable performance can be obtained.

The millimeter wave circuit according to the present invention is characterized in that the NRD
A concave groove is provided in one of the upper and lower conductor plates forming the guide, and the split line component is inserted into the groove to form a leakage wave N.
An RD guide is configured. With this configuration, a leaky wave NRD guide is formed, and the split line components can be automatically mounted, so that mass productivity can be improved, multi-product development can be easily performed, and stable performance can be obtained.

The millimeter wave circuit according to the present invention is characterized in that the NRD
Provide concave grooves on both upper and lower conductor plates constituting the guide,
A conductor film is attached to the upper and lower sides of the split line component and inserted into the groove. With this configuration, the conductor film is attached to the groove of the leaky wave NRD guide, and the split line component can be automatically mounted, thereby improving mass productivity.
Multi-product development can be easily performed, and stable performance can be obtained.

The method of manufacturing a millimeter wave circuit according to the present invention is as follows.
On one of the conductor plates constituting the NRD guide with the dielectric line interposed, a split line component obtained by dividing the dielectric line into a predetermined length by a component mounter is mounted, and after the mounting, the other conductor plate is mounted. It has a configuration that comprises the steps of placing on the mounted split line component. With this configuration, the dielectric line is divided and mounted to enable automatic mounting, so that mass productivity can be improved, multi-product development can be easily performed, and stable performance can be obtained.

The method of manufacturing a millimeter wave circuit according to the present invention comprises:
Before mounting the split line component on the one conductor plate, a step of attaching a double-sided pressure-sensitive adhesive sheet to a mounting position of the split line component on the one conductor plate is included. With this configuration, a double-sided pressure-sensitive adhesive sheet is attached to the mounting position of the dielectric line, and the dielectric line can be automatically mounted, so that mass productivity can be improved, multi-product development can be easily performed, and stable performance can be obtained. be able to.

The method of manufacturing a millimeter wave circuit according to the present invention is as follows.
Before the split line component is mounted on the one conductor plate, a step of applying an adhesive to a mounting position of the split line component on the one conductor plate is included. With this configuration, by applying an adhesive to the mounting position of each component to prevent the displacement of the component, automatic mounting can be facilitated, mass productivity can be improved, and stable performance can be obtained. .

The method for manufacturing a millimeter wave circuit according to the present invention is as follows.
Before mounting the split line component on the one conductor plate, a concave groove is provided at least at the mounting position of the split line component on the one conductor plate, and the groove is filled with a conductive adhesive. It has a configuration that includes a step. With this configuration, the groove at the mounting position of the dielectric line is filled with a conductive adhesive so that the dielectric line can be automatically mounted, so that mass production can be improved and a wide variety of products can be easily developed.
Stable performance can be obtained.

According to the present invention, there is provided a transmitting / receiving apparatus comprising:
A millimeter wave circuit according to any one of claims 1 to 15 manufactured by the method for manufacturing a millimeter wave circuit according to any one of claims 1 to 19. With this configuration, by dividing the dielectric line and enabling automatic mounting, mass productivity can be improved, multi-product development can be easily performed, and stable performance can be obtained.

According to the present invention, there is provided a radar apparatus.
A millimeter wave circuit according to any one of claims 1 to 15 manufactured by the method for manufacturing a millimeter wave circuit according to any one of claims 1 to 19. With this configuration, by dividing the dielectric line and enabling automatic mounting, mass productivity can be improved, multi-product development can be easily performed, and stable performance can be obtained.

[0031]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIGS.
First to tenth embodiments of the present invention will be described in detail. (First Embodiment) First, referring to FIGS. 1 to 5,
The millimeter wave circuit according to the first embodiment of the present invention will be described. The basic configuration of the millimeter wave circuit according to the first embodiment will be described with reference to FIG. In FIG. 1, (A) of FIG.
FIG. 1 is a plan view of the upper conductor plate removed from the upper surface, and FIG.
(B) is a side view of (A) of FIG. 1 as viewed from the front.
The millimeter wave circuit according to the present embodiment has
1 to n, a lower conductor plate 2 and an upper conductor plate 3.

The divided dielectrics 1-1 to 1-n are, for example,
This is a surface processed product made of a fluororesin formed into a height a, a width b, and a length c. Lower conductor plate 2 and upper conductor plate 3
The upper and lower conductor plates 2 and 3 are collectively made of, for example, an aluminum plate. Split dielectric 1
1 to 1-n are sandwiched and fixed between the upper and lower conductor plates 2 and 3. Also, n pieces are arranged in parallel to the signal transmission direction 4, the arrangement interval is g, and the total length of the arrangement is d. An NRD guide (non-radiative dielectric line) is constituted by the divided dielectrics (also referred to as divided dielectric line components or divided line components) 1-1 to 1-n and the upper and lower conductor plates 2 and 3 thus configured. Is done.

As a method of configuring the millimeter wave circuit of the present embodiment, for example, the divided dielectrics 1-1 to 1-n are prepared in advance as individual components, and individually mounted on the lower conductor plate 2,
Thereafter, the upper conductor plate 3 is covered. At this time, if the arrangement interval g of the divided dielectrics 1-1 to 1-n is, for example, about 0.5 mm, the divided dielectrics 1-1 to 1-n are mounted by a general suction-type automatic mounting machine. be able to. If the length c of the divided dielectrics 1-1 to 1-n is set to, for example, 2 mm, by changing the number n of arrangements, one kind of NRD guide of various lengths of 2.5 mm steps can be obtained. Can be constituted by the following components.

FIG. 2 shows a general configuration of a conventional NRD guide. 2, (A) of FIG. 2 is a plan view of the upper conductor plate removed and viewed from above, and (B) of FIG.
(A) is a side view as viewed from the front. The upper and lower conductor plates 2 and 3 are the same as in FIG. The dielectric strip 5 is formed, for example, by molding Teflon into a height a, a width b, and a length d. The height a and the width b of the dielectric strip 5 are the same as those of the divided dielectrics 1-1 to 1-n in FIG. 1, and the length d is
It is the same as the total length d of the divided dielectrics 1-1 to 1-n in FIG.

In the NRD guide configured as described above, the height a and the width b of the dielectric strip 5 are set as follows. a / λ = 0.45 (εr-1) ^1/2 · b / λ = 0.5 where λ is the wavelength at the operating frequency, and εr is the relative permittivity of the dielectric line. When the height a and the width b are set as described above, the dielectric strip 5 operates as a low-loss dielectric line.

Here, as an example, the frequency is 60 GHz,
Assuming that the dielectric is Teflon having an εr of 2.04, the height a is 2.25 mm and the width b is 2.5 mm. The transmission loss in this case is extremely small, about 6 dB / m. Conventional NRD
In a millimeter wave circuit using a guide, the N
The RD guide is routed with a length of, for example, about 20 to 50 mm, and connects the respective circuit blocks. Therefore,
The length of the dielectric strip as a component constituting the NRD guide is about 20 to 50 mm. In general, the connection between the dielectric strip and each circuit element is made closely without providing any space. For this reason, it has been difficult to mount the dielectric strip using a generally used suction-type automatic mounting machine. In addition, since the length of the dielectric strip is uniquely determined according to the arrangement of each circuit block, the dielectric strip as a component is a dedicated component having no versatility.

On the other hand, the millimeter wave circuit according to the first embodiment of the present invention has the same structure as the conventional millimeter wave circuit shown in FIG. A is set to 2.25 mm, width b is set to 2.5 mm, and
The length c is set to, for example, 2 mm. The arrangement interval g is set to 0.5 mm (1/10 wavelength), and the number n of the arrangement is set to 10
And In this case, the total length d of the array is 24.5 mm.
With this setting, the operation of the NRD guide is hardly affected since the interval g is sufficiently small with respect to the wavelength.

Next, the transmission loss of the NRD guide using the millimeter wave circuit according to the present embodiment will be described with reference to FIG. FIG. 3 shows a height a = 2.25 mm and a width b =
2.5 mm, length c = 2 mm, spacing g = 0.5 mm
The transmission loss L1 in the NRD guide of the present invention shown in FIG. 1 and the transmission loss L in the conventional NRD guide shown in FIG.
FIG. 2 is a diagram shown on the basis of FIG. That is, the graph of FIG. 3 is based on the transmission loss L2 of the conventional NRD guide shown in FIG. 2 in which each parameter is set as described above, and the present embodiment shown in FIG. 1 in which each parameter is similarly set as described above. 11 shows the magnitude of the transmission loss L1 of the NRD guide in the form (1). In FIG. 3, the horizontal axis represents frequency, and the vertical axis represents transmission loss L1 (deterioration of transmission loss) based on transmission loss L2. From FIG. 3, it can be seen that the deterioration of the transmission loss of the NRD guide of the present embodiment shown in FIG. 1 is suppressed to 0.5 dB or less, and that the NRD guide operates as a sufficiently practical NRD guide.

Next, with reference to FIGS. 4 and 5, a description will be given of a process of manufacturing the millimeter wave circuit according to the first embodiment of the present invention shown in FIG. FIG. 4 shows the divided dielectric 1-1.
And 1-2 are already mounted, then the split dielectric 1-
No. 3 is being implemented. FIG.
Shows a state in which the divided dielectrics 1-1 to 1-n are mounted and the upper conductor plate 3 is covered. 4, a suction nozzle 6, an automatic mounting machine head 7, and a double-sided pressure-sensitive adhesive sheet 8 are used. Also, the components denoted by the same reference numerals as those in FIG. 1 indicate the same components.

In FIG. 4, the suction nozzle 6 and the automatic mounting machine head 7 are a part of a general automatic mounting machine. The suction nozzle 6 sucks the divided dielectrics 1-3, and mounts the divided dielectrics 1-3 on the lower conductor plate 2 by mechanical vertical movement of the automatic mounting machine head 7. Here, the divided dielectric 1-1
The arrangement interval of (1) to (3) is 0.5 mm, which has a sufficient margin for a mounting error (for example, 0.1 mm) of a general automatic mounting machine, and a problem of component interference at the time of automatic mounting occurs. do not do. Further, the double-sided adhesive sheet 8 is attached on the lower conductor plate 2 in advance, which has an effect of temporarily fixing the divided dielectrics mounted by the automatic mounting machine, and can prevent displacement. Similar effects can be obtained by applying an adhesive in advance instead of the double-sided pressure-sensitive adhesive sheet 8. After the divided dielectrics 1-1 to 1-n are mounted as described above, the upper conductor plate 3 is covered.

As described above, one of the features of the present embodiment is that the dielectric strip constituting the NRD guide is divided into minute dielectrics, which are arranged, and that the arrangement interval is sufficient for the wavelength. The point is to set it small. Another feature of the present embodiment is that automatic mounting is enabled by making the arrangement interval of the minute dielectrics sufficiently small with respect to the wavelength and larger than the mounting error of the automatic mounting machine.

Another feature of the present embodiment is that a double-sided pressure-sensitive adhesive sheet is attached to a conductor plate in advance to prevent the displacement of the divided dielectrics. Another feature of the present embodiment is that the adhesive is applied to the conductor plate in advance to prevent the divided dielectrics from shifting. As described above, according to the millimeter wave circuit and the manufacturing method of the first embodiment, by enabling automatic mounting, mass productivity can be improved, multi-product development can be easily performed, and stable performance can be obtained. .

Note that the lengths and arrangement intervals of the divided dielectrics are not limited to the values shown in the present embodiment, but the allowable NRD
The same effect can be obtained even if the guide performance is obtained and other values that can be automatically mounted are used. Further, the configuration of the automatic mounting machine is not limited to the one shown in the present embodiment, and the same effect can be obtained with a general automatic mounting machine even with another configuration, for example, a method other than the suction type. Can be

(Second Embodiment) Next, FIGS.
The millimeter wave circuit according to the second embodiment of the present invention will be described with reference to FIG. First, the basic configuration of the millimeter wave circuit according to the second embodiment will be described with reference to FIG. 6, (A) of FIG. 6 is a plan view of the upper conductor plate removed and viewed from above, and (B) of FIG. 6 is a side view of (A) of FIG. 6 viewed from the front. The millimeter wave circuit according to the present embodiment includes upper and lower conductor plates 2 and 3 and divided bends 9-1 to 9-3. The upper and lower conductor plates 2 and 3 are the same as in FIG.
In addition, divided bends (also referred to as divided bent line components) 9-1 to 9 obtained by dividing the dielectric bend (bent dielectric line).
-3 is, for example, a Teflon having a height a, a width b, a radius of curvature R,
It is formed to have a central angle α. Also, three are arranged so as to keep the same radius of curvature R, the arrangement interval is g, and the central angle of the entire arrangement is β. Split bends 9-1 to 9-
3 is fixed between the upper and lower conductor plates 2 and 3.
The divided bends 9-1 to 9-3 and the upper and lower conductor plates 2 and 3 configured as described above constitute an NRD guide bend.

As a method of configuring the millimeter wave circuit according to the present embodiment, for example, the divided bends 9-1 to 9-3 are prepared in advance as individual components, individually mounted on the lower conductor plate 2, and then mounted on the lower conductor plate 2. The conductor plate 3 is covered. At this time, the arrangement interval g of the divided bends 9-1 to 9-3 is set to, for example, 0.5 mm.
In this case, the split bends 9-1 to 9-3 can be mounted by a general suction-type automatic mounting machine. When the radius of curvature R of the divided bends 9-1 to 9-3 is set to 25 mm and the central angle α is set to 25.9 degrees, the length e of the sector is about 1
1.1 mm, and the central angle β of the entire array is NR of 80 degrees.
The D guide bend can be constituted by only one kind of component, that is, only one kind of split bend.

FIG. 7 shows a general configuration of a conventional NRD guide bend. 7, (A) of FIG. 7 is a plan view of the upper conductor plate removed and viewed from above, and (B) of FIG.
Shows a side view of FIG. 7A as viewed from the front. The upper and lower conductor plates 2 and 3 are the same as in FIG. The dielectric strip bend 10 is formed, for example, by molding Teflon into a height a, a width b, a radius of curvature R, and a central angle β. The height a, width b, and radius of curvature R of the dielectric strip bend 10 are the same as those of the divided bends 9-1 to 9-3 according to the present embodiment shown in FIG. 6, and the central angle β is shown in FIG. Split bend 9 shown
-1 to 9-3 are the same as the central angle β of the entire array.

In the conventional NRD guide constructed as described above, the height a and the width b of the dielectric strip bend 10 are set in the same manner as shown in FIGS. 1 and 2, and the radius of curvature R and the central angle β are set. When set to a predetermined value, the dielectric strip bend 10 operates as a low-loss dielectric line. That is, for example, the frequency is 60 GHz and the dielectric is ε
A description will be given of a case where Teflon having an r of 2.04 is used. At this time, as in the case of the first embodiment of the present invention, the height a is 2.25 mm and the width b is 2.5 mm
And Here, the radius of curvature R is 25 mm, and the central angle β is 8
If the angle is set to 0 degrees, the transmission loss is extremely low and almost no loss.

However, in the above-mentioned conventional NRD guide bend, the total length d of the sector is about 35 mm. Therefore, the length of the dielectric strip bend 10 as a component constituting the NRD guide bend is about 35 mm.
Becomes In general, the dielectric strip bend 10 and each circuit element are closely attached without providing any space. For this reason, it was difficult to mount the dielectric strip bend 10 using a general suction-type automatic mounting machine.

On the other hand, in the millimeter wave circuit according to the second embodiment of the present invention shown in FIG. 6, the height a of each of the divided bends 9-1 to 9-3 is set to 2.
25 mm, width b is 2.5 mm, radius of curvature R is 25 mm,
The center angle α is set to 25.9 degrees, and the arrangement interval g
Is set to 0.5 mm (1/10 wavelength), and the central angle β of the entire array is set to 80 degrees. In this case, the total sequence length d is about 35 m
m. With this setting, the gap g is sufficiently small with respect to the wavelength, so that the operation of the NRD guide bend is hardly affected.

Next, the transmission loss of the NRD guide using the millimeter wave circuit according to the second embodiment will be described with reference to FIG. The graph of FIG. 8 is based on the transmission loss L7 of the conventional NRD guide bend shown in FIG. 7 in which each parameter is set as described above, and similarly, the present embodiment shown in FIG. 6 in which each parameter is set as described above. NRD of form
It shows the magnitude of the transmission loss L6 of the guide bend. In FIG. 8, the horizontal axis represents frequency, and the vertical axis represents transmission loss L6 (deterioration of transmission loss) based on transmission loss L7.
Is shown. From FIG. 8, N of the present embodiment shown in FIG.
The deterioration of the transmission loss of the RD guide bend is suppressed to 1 dB or less, which indicates that the RD guide bend operates as a sufficiently practical NRD guide bend.

Also in the NRD guide bend shown in FIG. 6, as in the case of the NRD guide shown in FIG. 1, automatic mounting by a general automatic mounting machine is possible by the manufacturing method shown in FIGS.

As described above, the feature of the millimeter wave circuit according to the second embodiment of the present invention is that the dielectric strip bend constituting the NRD guide bend is divided into minute dielectric bends and arranged. The automatic mounting is made possible by making the arrangement interval sufficiently small with respect to the wavelength and larger than the mounting error of the automatic mounting machine. As described above, according to the millimeter wave circuit of the second embodiment, by enabling automatic mounting, mass productivity can be improved, multi-product development can be easily performed, and stable performance can be obtained. still,
The lengths of the divided bends and the arrangement intervals are not limited to the values shown in the present embodiment, but an acceptable NRD guide bend performance can be obtained, and the same effects can be obtained even if the values are other values that can be automatically mounted. Can be

(Third Embodiment) Next, FIG. 9 and FIG.
The millimeter wave circuit according to the third embodiment of the present invention will be described with reference to FIG. First, the basic configuration of the millimeter wave circuit according to the third embodiment will be described with reference to FIG. 9, (A) of FIG. 9 is a plan view of the upper conductor plate removed and viewed from above, and (B) of FIG. 9 is a side view of (A) of FIG. 9 viewed from the front. The millimeter wave circuit of the present embodiment includes upper and lower conductor plates 2 and 3, divided bends 9-1 to 9-3, and divided dielectrics 11-1 to 11-5 and 12-1 to 12-2. It is composed. Upper and lower conductor plates 2 and 3, split bend 9
-1 to 9-3 are the same as those in FIG.

Divided dielectrics 11-1 to 11-5 and 12
-1 to 12-2 are, for example, Teflon molded into a height a, a width b, and a length h. Split dielectric 11-1
11-5 and 12-1 through 12-2 and the divided bends 9-1 through 9-3 are sandwiched and fixed between the upper and lower conductor plates 2 and 3. The divided dielectrics 12-1 to 12-2 and the divided bends 9-1 to 9-3 constitute an NRD guide bend, and the divided dielectrics 11-1 to 11-5 constitute a straight line of the NRD guide. Here, the millimeter wave circuit shown in FIG. 9 operates as an NRD guide directional coupler by setting the distance f between the divided dielectric 11-3 and the divided bend 9-3 to a predetermined value.

Here, as an example, the frequency is 60 GHz,
The case where Teflon having an εr of 2.04 is used as the dielectric will be described. That is, as described in the first embodiment, the height a is 2.25 mm and the width b is 2.5 mm
Becomes Further, the divided dielectrics 11-1 to 11-5 and 1
The length h of each of 2-1 to 12-2 is set to 10 mm, the radius of curvature R of the divided bends 9-1 to 9-3 is set to 25 mm, and the central angle α is set to 25.9 degrees. At this time, the central angle β of the NRD guide bend formed by the divisions 9-1 to 9-3
Is 80 degrees. Further, the interval g is set to 0.5 mm.

Next, the operation of the NRD guide directional coupler using the millimeter wave circuit according to the third embodiment will be described with reference to FIG. The graph of FIG. 10 is a diagram showing the power transmission coefficients S21 and S31 at 60 GHz of the NRD guide directional coupler shown in FIG. FIG. 10 is a diagram in which a signal of 60 GHz is input from the port P1 and the signal levels output from the ports P2 and P3 are evaluated. The power transmission coefficients from the port P1 to the port P2 and to the port P3 are S21 and S31, respectively. . In FIG. 10, the horizontal axis is the interval f, and the vertical axis is the power transmission coefficient S2.
1 and S31 are shown. As shown in FIG.
In the case of 4 mm, both the power transmission coefficients S21 and S31 are -3.2 dB, indicating that the device operates as a low-loss equal power distributor. Thus, it can be seen that the millimeter wave circuit shown in FIG. 9 operates as a sufficiently practical NRD guide directional coupler. Also in the directional coupler shown in FIG. 9, similarly to the NRD guide shown in FIG. 1, automatic mounting can be performed by a generally used automatic mounting machine by the manufacturing method shown in FIGS. 4 and 5.

As described above, this embodiment is characterized in that the dielectric line and the dielectric bend constituting the directional coupler are divided into minute dielectrics and bends, which are arranged, and the arrangement interval is reduced. This is to enable automatic mounting by making the wavelength sufficiently smaller than the wavelength and larger than the mounting error of the automatic mounting machine.

As described above, according to the millimeter wave circuit of the third embodiment, by enabling automatic mounting,
The mass productivity can be improved, multi-product development can be easily performed, and stable performance can be obtained. Note that the lengths and arrangement intervals of the divided dielectrics and the bends are not limited to the values shown in the present embodiment, but other values that can achieve an acceptable performance of the directional coupler and can be automatically mounted. Has the same effect.

(Fourth Embodiment) Next, a millimeter wave circuit according to a fourth embodiment of the present invention will be described with reference to FIG. The basic configuration of the millimeter wave circuit according to the fourth embodiment shown in FIG.
-2, upper and lower conductor plates 2 and 3, and a mode suppressor 13. Split dielectrics 1-1 and 1-2,
The upper and lower conductor plates 2 and 3 are the same as in FIG.

The mode suppressor 13 is formed, for example, by molding Teflon to a height a, a width b, and a length m, and a copper foil 14 is inserted at the center. The copper foil 14 has a shape in which the width i and the width j are alternately arranged at an interval k. Mode suppressor 13
The split dielectrics 1-1 and 1-2 are sandwiched and fixed between the upper and lower conductor plates 2 and 3 as in FIG.

Here, as an example, the frequency is 60 GHz,
The case where Teflon having an εr of 2.04 is used as the dielectric will be described. At this time, as described in the first embodiment, the height a is 2.25 mm and the width b is 2.5 mm
Becomes Here, as the dimensions of each part of the copper foil 14, the width i is 2.0 mm, the width j is 0.2 mm, and the interval k is 0.9 mm.
(Quarter wavelength of TEM wave), the copper foil 14 forms a quarter wavelength choke pattern,
The EM mode is suppressed. Further, since the copper foil is vertically inserted, the LSE mode is suppressed. Therefore, the mode suppressor 13 does not affect the LSM mode, which is the main transmission mode of the NRD guide, and suppresses the LSE mode and TEM mode, which are unnecessary modes.

When the millimeter-wave circuit according to the fourth embodiment is manufactured, the mode suppressor 13 is configured as an individual component and is arranged in advance, and the space g (0.
The divided dielectrics 1-1 and 1-2 are arranged at a distance of 5 mm). By doing so, it is possible to suppress unnecessary modes by inserting the mode suppressor into the straight line of the NRD guide using the split line component of the present invention. In addition, by arranging mode suppressors at predetermined intervals in another NRD guide circuit using a divided dielectric, a high-performance millimeter wave circuit in which unnecessary modes are suppressed can be configured.

Also in the millimeter wave circuit shown in FIG. 11, as in the case of the NRD guide shown in FIG. 1, automatic mounting can be performed using a general automatic mounting machine by the manufacturing method shown in FIGS. It is. As described above, the feature of the present embodiment is that the mode suppressor and the divided line components are arranged so as to be connected to the mode suppressor, and the arrangement interval is sufficiently small with respect to the wavelength, and is smaller than the mounting error of the automatic mounting machine. The point is that automatic mounting is made possible by increasing the size.

As described above, according to the millimeter wave circuit of the fourth embodiment, by enabling automatic mounting,
The mass productivity is improved, multi-product development is easy, and stable performance is obtained. It should be noted that the configuration and arrangement interval of the mode suppressor are not limited to the values described in the present embodiment, but an acceptable performance of the mode suppressor can be obtained, and the same effect can be obtained even if the values are other values that can be automatically mounted. .

(Fifth Embodiment) Next, a millimeter wave circuit according to a fifth embodiment of the present invention will be described with reference to FIGS. 12A and 12B show a basic configuration of a millimeter wave circuit according to the fifth embodiment. FIG. 12A is a plan view of the millimeter wave circuit with the upper conductor plate removed, and FIG. (A) shows a side view as viewed from the front. The millimeter-wave circuit according to the present embodiment has the divided dielectric 1-1.
1 to 6, upper and lower conductor plates 2 and 3, and a circulator component 15. The divided dielectrics 1-1 to 1-6 and the upper and lower conductor plates 2 and 3 are the same as in FIG. FIG. 13 shows details of the circulator component 15. The circulator component 15 includes mode suppressors 13-1 to 13-3, ferrite plates 16-1 and 16-2, a dielectric spacer 17, and conductor plates 18-1 and 18-2.

Here, as an example, the frequency is 60 GHz,
The case where Teflon having an εr of 2.04 is used as the dielectric will be described. At this time, as described in the first embodiment, the height a is 2.25 mm and the width b is 2.5 mm
Becomes The mode suppressors 13-1 to 13-3 are shown in FIG.
This is the same as the mode suppressor 13 shown in FIG. The ferrite plates 16-1 and 16-2 have a thickness of, for example, 0.27 m.
m, a disk-shaped ferrite plate having a diameter of 2.8 mm. The dielectric spacer 17 is, for example, a cylindrical Teflon,
Its height is 1.71mm, diameter 2.8mm, wall thickness 0.4
mm. As shown in FIG. 13, the dielectric spacer 17 is inserted between the ferrite plates 16-1 and 16-2,
2.25 height with ferrite plates 16-1 and 16-2
mm ferrite resonator. Mode suppressor 1
3-1 to 13-3 are closely connected to the ferrite resonator so that the angle between them is 120 degrees. The mode suppressors 13-1 to 13-3 operate to suppress unnecessary modes generated at discontinuous portions of the line and pass only the LSM mode.

The conductor plates 18-1 and 18-2 are made of, for example, an aluminum plate having a thickness of 0.5 mm. The mode suppressors 13-1 to 13-3 and the ferrite plate 16-
1 and 16-2 and the ferrite resonator constituted by the dielectric spacer 17 are the conductor plates 18-1 and 18-2.
To form the circulator component 15.

Next, a millimeter wave circuit using the circulator component shown in FIG. 13 will be described with reference to FIG. The circulator component 15 and the divided dielectrics 1-1 to 1-6 are
Similar to the one shown in FIG. 1, it is sandwiched and fixed between the upper and lower conductor plates 2 and 3. As shown in FIG. 12B, grooves 19-1 and 19-2 having a depth of 0.5 mm are inserted into the upper and lower conductor plates 2 and 3 so that the conductor plates 18-1 and 18-2 are inserted.
Is provided. The circulator component 15 has a groove 19-1.
And 19-2. In FIG. 12B, a gap is shown between the circulator component 15 and the upper and lower conductor plates 2 and 3 for easy understanding of the grooves 19-1 and 19-2. Implemented. The circulator component 15 operates as an NRD guide circulator by applying a DC magnetic field by the permanent magnets 20-1 and 20-2.

The distance g (0 .0) from the circulator component 15
The divided dielectrics 1-1 and 1-6 are arranged at a distance of 5 mm. By doing so, the NRD guide circulator can be constituted by the straight line of the NRD guide using the split line component of the present invention and the circulator component 15. Also, in the NRD guide circulator shown in FIG. 12, as in the case of the NRD guide shown in FIG. 1, automatic mounting can be performed using a general automatic mounting machine by the manufacturing method shown in FIGS.

As described above, the feature of the fifth embodiment is that a ferrite resonator and a mode suppressor are prepared as circulator components, divided line components connected to the ferrite resonator and the mode suppressor are arranged, and the arrangement interval is set with respect to the wavelength. In this case, automatic mounting is possible by making the mounting size sufficiently small and larger than the mounting error of the automatic mounting machine. As described above, according to the millimeter wave circuit of the fifth embodiment, by enabling automatic mounting, mass productivity can be improved, multi-product development can be easily performed, and stable performance can be obtained. The configuration and arrangement interval of the circulator components are not limited to the values shown in the present embodiment, and the same effect can be obtained even if the circulator performance is acceptable and other values that can be automatically mounted are obtained. Can be

(Sixth Embodiment) Next, a millimeter wave circuit according to a sixth embodiment of the present invention will be described with reference to FIG. FIG. 14 shows a basic configuration of a millimeter wave circuit according to the sixth embodiment, in which divided dielectrics 1-1 and 1
-2, upper and lower conductor plates 2 and 3, and an anti-reflection termination component 21. The divided dielectrics 1-1 and 1-2 and the upper and lower conductor plates 2 and 3 are the same as those in FIG. The non-reflection terminating component 21 includes dielectrics 22-1 and 22-2, a resistive film 23, and a dielectric sheet 24.

In FIG. 14, as an example, the frequency is 60
A case where Teflon having GHz and εr of 2.04 is used as a dielectric will be described. At this time, as described in the first embodiment, the height a is 2.25 mm and the width b is 2.5 mm. The dielectrics 22-1 and 22-2 and the dielectric sheet 24 are made of Teflon. Also, the resistance film 2
3 and the dielectric sheet 24 have a thickness of, for example, 0.13 m
m, n is 10 mm and p is 15 m shown in FIG.
m. Dielectrics 22-1 and 22-
2, the resistance film 23 and the dielectric sheet 24 are sandwiched,
The height a is 2.25 mm, and the width b is 2.5 mm.

In FIG. 14, the non-reflective termination component 21 and the divided dielectrics 1-1 and 1-2 are sandwiched and fixed between the upper and lower conductor plates 2 and 3 as in FIG. The dielectric member 1 is separated from the non-reflection terminal component 21 by an interval g (0.5 mm).
1 and 1-2 are arranged. By doing so, the NRD guide non-reflection termination can be configured by the straight line of the NRD guide using the split line component of the present invention and the non-reflection termination component 21.

In the NRD guide non-reflection terminal according to the sixth embodiment shown in FIG.
Like the RD guide, automatic mounting can be performed using a general automatic mounting machine by the manufacturing method shown in FIGS. As described above, the feature of the present invention is that the non-reflection terminating component and the split line component connected thereto are arranged, the arrangement interval is sufficiently small with respect to the wavelength, and larger than the mounting error of the automatic mounting machine. This makes automatic mounting possible.

As described above, according to the millimeter wave circuit of the sixth embodiment, by enabling automatic mounting,
The mass productivity is improved, multi-product development is easy, and stable performance is obtained. It should be noted that the configuration and the arrangement interval of the non-reflection terminal components are not limited to the values shown in the present embodiment. can get.

(Seventh Embodiment) Next, a millimeter wave circuit according to a seventh embodiment of the present invention will be described with reference to FIGS. FIG. 15 shows a basic configuration of a millimeter wave circuit according to the seventh embodiment. FIG. 15 (A) is a plan view showing the upper conductor plate removed and viewed from above.
5B shows a side view of FIG. 15A as viewed from the front. The millimeter wave circuit according to the seventh embodiment includes split dielectrics 1-1 and 1-2, upper and lower conductor plates 2 and 3, and a gun oscillator component 25. Split dielectric 1-1
And 1-2 and upper and lower conductor plates 2 and 3 are the same as those in FIG.

First, the gun oscillator part 25 shown in FIG. 16 will be described in detail. The gun oscillator component 25 includes a mode suppressor 13, a gun diode 26, a metal case 27 as a metal housing, a dielectric substrate 28, a bias terminal 30, a metal strip resonator 31, a conductor plate 33-
1 and 33-2.

The mode suppressor 13 is the same as that shown in FIG. The gun diode 26 has a metal case 27
And one end thereof is electrically connected to the metal case 27. The dielectric substrate 28 is bonded to the side surface of the metal case 27, and a low-pass filter is formed of a copper foil 29 in order to prevent a signal from leaking from the Gunn diode 26. A bias is supplied from a lead wire 35 connected to the copper foil 32, and the bias is supplied to the gun diode 26 via the bias terminal 30. Metal strip resonator 31
Has a width of 1.4 mm and a length of 1.7 on a dielectric substrate, for example.
The copper foil 32 of mm is formed, and the resonance frequency is determined by the dimension of the copper foil 32. The millimeter wave signal oscillated from the gun diode 26 is transmitted to the mode suppressor 13 via the metal strip resonator 31. The mode suppressor 13 suppresses unnecessary modes of the transmitted millimeter wave signal and
It operates so as to pass only the LSM mode, which is the main transmission mode of the RD guide.

The conductor plates 33-1 and 33-2 have a thickness of
For example, it is made of a 0.5 mm aluminum plate. The metal case 27, the dielectric substrate 28, the metal strip resonator 31, and the mode suppressor 13 are fixed by the conductor plates 33-1 and 33-2, and constitute the Gunn oscillator part 25.

In FIG. 15, the gun oscillator part 25 and the divided dielectrics 1-1 and 1-2 are sandwiched and fixed between the upper and lower conductor plates 2 and 3 as in FIG. Here, as shown in FIG. 15B, the upper and lower conductor plates 2 and 3 have a depth of 0.5 such that the conductor plates 33-1 and 33-2 are inserted.
mm grooves 34-1 and 34-2 are provided. The gun oscillator part 25 is mounted so as to fit into the grooves 34-1 and 34-2. In FIG. 15B, the groove 34-1 is used.
And 34-2, a gap is shown between the gun oscillator part 25 and the upper and lower conductor plates 2 and 3, but they are actually mounted so as to be in close contact with each other. The divided dielectric 1 is separated from the gun oscillator part 25 by an interval g (0.5 mm).
-1 and 1-2 are arranged. With such a configuration, the Nth embodiment using the split line component according to the seventh embodiment can be used.
An NRD guide gun oscillator (also simply called a gun oscillator) can be configured by the straight line of the RD guide and the gun oscillator part 25.

In the NRD guide gun oscillator shown in FIG. 15, as in the NRD guide shown in FIG.
In addition, according to the manufacturing method shown in FIG. 5, automatic mounting can be performed using a general automatic mounting machine. As explained above,
The feature of the seventh embodiment is that the gun oscillator component and the split line component connected thereto are arranged, and the arrangement interval is sufficiently small with respect to the wavelength and larger than the mounting error of the automatic mounting machine. The point is that automatic mounting is enabled.

As described above, according to the millimeter wave circuit of the seventh embodiment, by enabling automatic mounting,
The mass productivity is improved, multi-product development is easy, and stable performance is obtained. Note that the configuration and the arrangement interval of the gun oscillator parts are not limited to the values shown in the present embodiment,
An acceptable oscillation performance is obtained, and the same effect can be obtained even if the value is another value that enables automatic mounting.

(Eighth Embodiment) Next, a millimeter wave circuit according to an eighth embodiment of the present invention will be described with reference to FIGS. FIG. 17 shows the basic configuration of a millimeter wave circuit according to the eighth embodiment. FIG. 17A is a plan view showing the upper conductor plate with the upper conductor plate removed, and FIG.
FIG. 7B shows a side view of FIG. 17A viewed from the front except for the rear dielectric. The millimeter wave circuit of the present embodiment
Upper and lower conductor plates 2 and 3, split bends 9-1 and 9-2
And divided dielectrics 11-1 to 11-5 and 12-1;
Diode mount parts 3 as semiconductor mount parts
6-1 and 36-2, and a substrate 43. Upper and lower conductor plates 2 and 3 and split bends 9-1 and 9-2
The split dielectrics 11-1 to 11-5 and 12-1 are the same as those in FIG. Diode mount part 36-
1 and the diode mount component 36-2 have the same basic configuration, except that the directions of the dielectric substrate 37-1 and the dielectric substrate 37-2 are reversed. Here, the description of the diode mount component 36-1 is representative.

First, the diode mount component 36-1 shown in FIG. 18 will be described in detail. The diode mount component 36-1 includes a dielectric substrate 37-1 and a front dielectric 38-
1, a rear dielectric 39-1, a high dielectric constant plate 40-1,
It is composed of a diode 41-1. Here, as an example, the frequency is 60 GHz, and εr is 2.0 as a dielectric.
The case where Teflon No. 4 is used will be described. At this time, as described in the first embodiment, the height a is 2.
The width b is 25 mm and the width b is 2.5 mm.

As the dielectric substrate 37-1, for example, a copper-clad Teflon substrate (εr = 2.6) having a thickness of 0.3 mm is used, and copper foils 42-1 and 42-2 are formed on one surface thereof. You. Both ends of the dielectric substrate 37-1 are shaved by the thickness of the substrate 43 (for example, 0.5 mm), and the copper foils 42-1 and 42-2 on the dielectric substrate 37-1 and the copper foil 42-1 The copper foils 44-1 and 44-2 are bonded by, for example, solder 45. The copper foils 42-1 and 42-2 form a quarter-wave choke pattern, and block a millimeter-wave signal. The front dielectric 38-1 has a length of, for example, 1 mm and is bonded to the back side of the copper foil surface of the dielectric substrate 37-1 with the high dielectric constant plate 40-1 interposed therebetween. The rear dielectric 39-1 has a length of, for example, 2.5 mm and is adhered to the copper foil side of the dielectric substrate 37-1 so as to cover the diode 41-1. To avoid this, for example, a groove is provided. The high dielectric constant plate 40-1 has, for example, a relative dielectric constant of 10.5.
And a dielectric having a thickness of 0.15 mm is used, and is bonded between the dielectric substrate 37-1 and the front dielectric 38-1. As the diode 41-1, for example, a beam lead type Schottky barrier diode is used, and copper foils 42-1 and 42-2 are used.
-2 is mounted with conductive epoxy or the like. Split dielectric 1
The elements 1-1 to 11-5 and 12-1 and the split bends 9-1 and 9-2 constitute an NRD guide directional coupler in the same manner as in FIG.

In FIG. 17, diode mount components 36-1 and 36-2 and divided dielectrics 11-1 to 11-1
As shown in FIG. 1, -5 and 12-1 and split bends 9-1 and 9-2 are sandwiched and fixed between the upper and lower conductor plates 2 and 3. The divided dielectrics 11-1 to 11-5 and 12-1 are arranged at an interval g (0.5 mm) from the diode mount components 36-1 and 36-2.

When an RF signal is input to the port P1 and an LO signal is input to the port P2, the RF signal and the LO signal are distributed by the NRD guide directional coupler, and are mixed by the diodes 41-1 and 41-2. Is done. On this occasion,
Diode 41-1 which is a Schottky barrier diode
And 41-2 are supplied to the copper foil 44 from the terminal 46.
-1. As a result of mixing, terminal 4
7, an IF signal having a frequency of | f _RF -f _LO | is output.
As described above, the straight line, the bend line, and the diode mount component 3 of the NRD guide using the split line component of the present invention.
The NRD guide mixer can be configured by 6-1 and 36-2. Further, by using a varactor diode as the diodes 41-1 and 41-2, a frequency modulator can be formed, and the Gunn oscillator in the seventh embodiment and the above-mentioned frequency modulator are arranged at a predetermined interval. By arranging them, an FM modulation oscillator can be configured.

Also, the NRD guide mixer shown in FIG. 17 can be automatically mounted by using a general automatic mounting machine by the manufacturing method shown in FIGS. 4 and 5, similarly to the NRD guide shown in FIG. It is. As explained above, the eighth
The feature of this embodiment is that the diode mount component, the split line component connected thereto and the NRD guide bend are arranged, and the arrangement interval is sufficiently small with respect to the wavelength and larger than the mounting error of the automatic mounting machine. This allows automatic mounting.

As described above, according to the millimeter wave circuit of the eighth embodiment, by enabling automatic mounting,
The mass productivity is improved, multi-product development is easy, and stable performance is obtained. Note that the configuration and the arrangement interval of the diode mount components are not limited to the values shown in the present embodiment, and the same effects can be obtained even if other values are obtained in which acceptable mixer performance is obtained and automatic mounting is possible. Is obtained.

(Ninth Embodiment) Next, a millimeter wave circuit according to a ninth embodiment of the present invention will be described with reference to FIGS. 19A and 19B show a basic configuration of a millimeter wave circuit according to the ninth embodiment. FIG. 19A is a plan view of the ninth embodiment with the upper conductor plate removed and viewed from above.
9 (B) shows a side view of FIG. 19 (A) as viewed from the front, and is configured to include divided dielectrics 1-1 to 1-4, upper and lower conductor plates 2 and 3, and a gap component 48. Is done. The divided dielectrics 1-1 to 1-4 and the upper and lower conductor plates 2 and 3 are the same as those shown in FIG.

First, the gap component 48 shown in FIG. 20 will be described in detail. The air gap component 48 includes divided dielectrics 49-1 and 4
9-2 and the thin conductor plates 50-1 and 50-2. Here, for example, the case where Teflon having a frequency of 60 GHz and εr of 2.04 is used as a dielectric will be described. At this time, the height a is 2.25 mm and the width b is 2.5 mm as described in the first embodiment. The divided dielectrics 49-1 and 49-2 are divided dielectric 1
Same as -1 to 1-4. Conductor plates 50-1 and 50
-2 is made of, for example, an aluminum plate having a thickness of 0.5 mm. Divided dielectrics 49-1 and 49-2 are arranged at a predetermined interval q, and are provided with conductor plates 49-1 and 49-2.
-2 to form the air gap component 48.

In FIG. 19, the gap component 48 and the divided dielectrics 1-1 and 1-2 are the same as those in FIG.
And 3 and are fixed. Here, as shown in FIG. 19B, the upper and lower conductor plates 2 and 3 are
0.5 mm depth so that 0-1 and 50-2 can be inserted
Grooves 51-1 and 51-2 are provided. Gap parts 48
Are mounted so as to be fitted into the grooves 51-1 and 51-2. In FIG. 19B, in order to make the grooves 51-1 and 51-2 easy to understand, the gap component 48 and the upper and lower conductor plates 2
Although a gap is shown between the first and third parts, they are actually mounted so as to be in close contact with each other. The gap g (0.5 m
m), the divided dielectrics 1-1 to 1-4 are arranged.
As described above, by using the NRD guide gap having a predetermined interval as a single component, a circuit requiring the accuracy of the gap width can be easily manufactured. For example,
As a circuit using the air gap, a band-pass filter or the like can be considered.

Also in the NRD guide gap shown in FIG. 19, as in the case of the NRD guide shown in FIG. 1, automatic mounting is possible using a general automatic mounting machine by the manufacturing method shown in FIGS. It is. As described above, the feature of the ninth embodiment is that the gap component and the split line component connected thereto are arranged, the arrangement interval is sufficiently small with respect to the wavelength, and the mounting of the automatic mounting machine is performed. By making the error larger than the error, automatic mounting is enabled. As described above, according to the millimeter wave circuit of the ninth embodiment, by enabling automatic mounting, mass productivity can be improved, multi-product development can be easily performed, and stable performance can be obtained.

(Tenth Embodiment) Next, a millimeter wave circuit according to a tenth embodiment of the present invention will be described with reference to FIG. 21A and 21B show a basic configuration of a millimeter wave circuit according to the tenth embodiment. FIG. 21A is a plan view of the millimeter wave circuit with the upper conductor plate removed, and FIG. 21B is a plan view of FIG. (A) shows the side view which looked at from the front.
The millimeter wave circuit according to the present embodiment includes upper and lower conductor plates 2 and 3 and divided dielectrics 52-1 to 52-n.
The divided dielectrics 52-1 to 52-n are, for example, Teflon molded to have a height a + s, a width r, and a length c. The upper and lower conductor plates 2 and 3 are made of, for example, an aluminum plate. The lower conductor plate 2 is provided with a groove 53 having a width r and a depth s. The divided dielectrics 52-1 to 52-n are fitted into the grooves 53, and are fixed by being sandwiched between the upper and lower conductor plates 2 and 3. Divided dielectrics 52-1 to 52 thus configured
-N and the upper and lower conductor plates 2 and 3 constitute a leaky wave NRD guide.

Since the leaky wave NRD guide is a vertically asymmetric line formed by the groove 51 provided in the lower conductor plate 2, the electric field of the transmission wave is disturbed and a leaky wave is generated. At this time, assuming that the transmission direction 54 of the radio wave is transmitted from left to right, the leaked wave is radiated at a certain radiation angle θ like the radiation direction 55.

Here, as an example, the frequency is 60 GHz,
The case where Teflon having an εr of 2.04 is used as the dielectric will be described. The height a of the divided dielectrics 52-1 to 52-n is 2.4 mm, the width r is 2 mm, the length c is 2 mm,
Assuming that the arrangement interval g is 0.5 mm (1/10 wavelength) and the number n of arrangements is 10, in this case, the total arrangement length d is 24.5.
mm. With this setting, the operation of the leaky wave NRD guide is hardly affected since the interval g is sufficiently small with respect to the wavelength. Here, the depth s of the groove 53 is set to 0.15.
mm, the radiation angle θ is 54.5 degrees and the attenuation constant α is about 63 dB / m. The radiation angle θ and the attenuation constant α can be changed depending on the size of the leaky wave NRD guide and the depth s of the groove 53.

As described above, the leaky wave NRD guide can be formed by mounting the straight line of the NRD guide using the split line component in the groove provided in one of the upper and lower conductor plates. Also, in the leaky wave NRD guide shown in FIG. 21, similarly to the NRD guide shown in FIG. 1, automatic mounting can be performed using a general automatic mounting machine by the manufacturing method shown in FIGS. .

As described above, the feature of the tenth embodiment is that the dielectric line constituting the NRD guide is divided into minute dielectrics and arranged, and the arrangement interval is made sufficiently small with respect to the wavelength. In addition, by making the mounting error larger than the mounting error of the automatic mounting machine, automatic mounting is enabled. Thus, according to the millimeter wave circuit of the tenth embodiment,
By enabling automatic mounting, mass productivity can be improved, multi-product development can be easily performed, and stable performance can be obtained. The dimensions of the divided dielectrics, the depth of the groove of the conductor plate and the arrangement interval are not limited to the values shown in the present embodiment, but other values that can provide an acceptable NRD guide performance and enable automatic mounting. However, the same effect can be obtained.

[0099]

The millimeter wave circuit, the method of manufacturing the same, the transmission / reception device, and the radar device according to the present invention are constructed as described above. In particular, the dielectric line constituting the NRD guide is divided into minute dielectrics and arranged. However, by setting the arrangement interval to be sufficiently small with respect to the wavelength and larger than the mounting error of the automatic mounting machine, automatic mounting is enabled, mass productivity is improved, multi-product development can be easily performed, and stable performance is achieved. Can be obtained.

Further, the millimeter wave circuit of the present invention can improve the mass productivity by enabling automatic mounting by preventing the displacement of the divided dielectrics by attaching a double-sided adhesive sheet or an adhesive to the conductor plate in advance. It is possible to easily develop a wide variety of products and obtain stable performance.

In addition, by using the circulator component, the gun oscillator component, the non-reflection terminating component, the diode mount component, and the air gap component as the millimeter wave circuit element in the embodiment of the present invention, automatic mounting is enabled and mass productivity is improved. And
Various kinds of millimeter-wave circuits can be provided which can be easily developed into various types and have stable performance. Also,
The millimeter-wave circuit of the present invention can be manufactured by the manufacturing method described above to provide a transmitting / receiving device or a radar device that secures stable performance and obtains high mass productivity.

[Brief description of the drawings]

1A and 1B show a basic configuration of a millimeter wave circuit according to a first embodiment of the present invention, in which FIG. 1A is a plan view of an upper conductor plate removed and viewed from above, and FIG. Side view, viewed from

FIG. 2 shows a general configuration of a conventional NRD guide,
(A) is a plan view of the upper conductor plate removed and viewed from above,
(B) is a side view of (A) viewed from the front,

FIG. 3 shows the transmission loss L1 of the NRD guide of the millimeter wave circuit according to the first embodiment of the present invention shown in FIG. 1 and the transmission loss L2 of the conventional NRD guide shown in FIG. Graph diagram shown as a reference,

FIG. 4 is a diagram showing a method for manufacturing a millimeter wave circuit according to the first embodiment of the present invention;

FIG. 5 is a diagram showing a step of manufacturing the millimeter wave circuit according to the first embodiment of the present invention;

6A and 6B show a basic configuration of a millimeter wave circuit according to a second embodiment of the present invention, wherein FIG. 6A is a plan view of the millimeter wave circuit with the upper conductor plate removed, and FIG. FIG.

7A and 7B show a general configuration of a conventional NRD guide bend, and FIG.
(B) is the side view which looked at (A) from the front.

FIG. 8 shows a transmission loss L6 in the NRD guide bend of the millimeter wave circuit according to the second embodiment of the present invention shown in FIG.
Of the conventional N shown in FIG.
A diagram showing the transmission loss L7 of the RD guide bend as a reference,

FIGS. 9A and 9B show a basic configuration of a millimeter wave circuit according to a third embodiment of the present invention, wherein FIG. 9A is a plan view of the millimeter wave circuit with the upper conductor plate removed, and FIG. Side view, viewed from

FIG. 10 illustrates the NRD guide directional coupler 60 shown in FIG. 9;
The figure which shows the electric power transmission coefficients S21 and S31 in GHz.

FIG. 11 is a diagram showing a basic configuration of a millimeter wave circuit according to a fourth embodiment of the present invention;

12A and 12B show a basic configuration of a millimeter wave circuit according to a fifth embodiment of the present invention, wherein FIG. 12A is a plan view showing the millimeter wave circuit with the upper conductor plate removed, and FIG. Side view, viewed from

FIG. 13 is a diagram showing details of a circulator component;

FIG. 14 is a diagram showing a basic configuration of a millimeter wave circuit according to a sixth embodiment of the present invention;

15A and 15B show a basic configuration of a millimeter wave circuit according to a seventh embodiment of the present invention, in which FIG. 15A is a plan view of the millimeter wave circuit with the upper conductor plate removed, and FIG. Side view, viewed from

FIG. 16 is a view showing details of a gun oscillator part;

FIGS. 17A and 17B show a basic configuration of a millimeter wave circuit according to an eighth embodiment of the present invention, wherein FIG. 17A is a plan view of the millimeter wave circuit with the upper conductor plate removed, and FIG. (A)
The side view from the front,

FIG. 18 is a diagram showing details of a diode mount component;

FIGS. 19A and 19B show a basic configuration of a millimeter wave circuit according to a ninth embodiment of the present invention, in which FIG. 19A is a plan view of an upper conductor plate removed and FIG. Side view, viewed from

FIG. 20 is a diagram showing details of a gap component;

FIGS. 21A and 21B show a basic configuration of a millimeter wave circuit according to a tenth embodiment of the present invention, wherein FIG. 21A is a plan view of the millimeter wave circuit with the upper conductor plate removed, and FIG. FIG.

[Explanation of symbols]

 1, 11, 12, 49, 52 ... divided dielectric 2 lower conductor plate 3 upper conductor plate 4 signal transmission direction 5 dielectric strip 6 suction nozzle 7 automatic mounting machine head 8 double-sided adhesive sheet 9 divided bend 10 dielectric Body strip bend 13 Mode suppressor 14, 29, 32, 42, 44 Copper foil 15 Circulator component 16 Ferrite plate 17 Dielectric spacer 18, 33, 50 Conductor plate 19, 34, 51, 53 Groove 20 Permanent magnet 21 Non-reflective termination component 22 Dielectric 23 Resistive film 24 Dielectric sheet 25 Gunn oscillator part 26 Gunn diode 27 Metal case 28, 37 Dielectric substrate 30 Bias terminal 31 Metal strip resonator 35 Lead wire 36 Diode mount part 38 Front dielectric 39 Rear dielectric 40 High Dielectric plate 41 Diode 43 Substrate 45 Half Fields 46, 47 Terminals 48 Air gap parts 54 Radio wave transmission direction 55 Radiation direction

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) H01P 5/02 607 H01P 5/02 607 11/00 11/00 P (72) Inventor Hiroshi Saito Kanazawa, Ishikawa 2-45 Ichihikosancho Ichihikosancho Matsushita Communication Kanazawa Research Laboratory F-term (reference) 5J012 BA02 CA13 5J014 HA06

Claims (21)

[Claims] In an NRD guide comprising a dielectric line sandwiched between upper and lower conductor plates, the dielectric line is divided into predetermined lengths to be divided line parts, and the divided line parts are separated by a predetermined distance into a signal. A millimeter wave circuit, wherein the millimeter wave circuit is arranged in a transmission direction of a linear line. 2. An NRD guide comprising a bent dielectric line having a predetermined radius of curvature sandwiched between upper and lower conductor plates, wherein said bent dielectric line is divided into predetermined lengths to form divided bent line parts. A millimeter-wave circuit comprising a bent line formed by arranging bent line components at predetermined intervals in a signal transmission direction. 3. A millimeter wave circuit comprising a directional coupler, wherein the straight line according to claim 1 and the bent line according to claim 2 are adjacent to each other at a predetermined interval. 4. A divided line component which is formed by dividing a dielectric line into predetermined lengths and sandwiched between upper and lower conductor plates, and wherein a narrow portion and a wide portion at the center of the dielectric line are four quarters of a TEM wave. A mode suppressor formed by inserting a metal plate formed so as to be repeated at one wavelength interval, wherein the split line component and the mode suppressor are arranged at predetermined intervals in a signal transmission direction. Claim 1 characterized by the following:
Or the millimeter wave circuit according to 2. 5. A ferrite resonator comprising a ferrite plate and a dielectric spacer, and a narrow portion and a wide portion formed at the center of the dielectric line so as to be repeated at intervals of a quarter wavelength of a TEM wave. A circulator component configured by a mode suppressor configured by inserting a metal plate,
The circulator component and a divided line component obtained by dividing the dielectric line into a predetermined length are arranged at a predetermined interval, and N
3. The millimeter-wave circuit according to claim 1, wherein the millimeter-wave circuit forms an RD guide circulator. 6. A non-reflective terminal component formed by inserting a resistive film and a dielectric sheet at the center of a dielectric line, and the non-reflective terminal component and the split line component are arranged at a predetermined interval. 3. The millimeter wave circuit according to claim 1, wherein: 7. A gun diode mounted in a metal housing, a metal strip resonator for transmitting a millimeter wave signal oscillated from the gun diode, and a TEM wave having a narrow portion and a wide portion at the center of the dielectric line. And a mode suppressor formed by inserting a metal plate formed so as to be repeated at quarter-wave intervals. The gun oscillator component and the split line component are separated by a predetermined distance. 3. The millimeter wave circuit according to claim 1, wherein said gun oscillator is arranged. 8. A semiconductor mounting component comprising a dielectric substrate on which a semiconductor is mounted sandwiched between two split line components, wherein the semiconductor mount component and the split line component are arranged at a predetermined interval. The millimeter wave circuit according to claim 1 or 2, wherein: 9. A bias is supplied by electrically connecting a pattern on a circuit board attached to one of upper and lower conductor plates constituting an NRD guide and a pattern on a board of the semiconductor mount component. The millimeter wave circuit according to claim 8, wherein: 10. A semiconductor device comprising a plurality of semiconductor mounting components on which a Schottky barrier diode is mounted as the semiconductor,
A pattern on the circuit board attached to one of the upper and lower conductor plates constituting the D guide is electrically connected to a pattern on the substrate of the semiconductor mount component, and the divided line component of the plurality of semiconductor mount components is connected. 10. The millimeter wave circuit according to claim 8, wherein a mixer circuit is configured by arranging the split circuit and another divided line component at a predetermined interval. 11. A pattern on a circuit board attached to one of upper and lower conductor plates constituting an NRD guide, comprising a semiconductor mounting component on which a varactor diode is mounted as the semiconductor, and a semiconductor mounting component on a substrate of the semiconductor mounting component. 10. A frequency modulator, wherein a pattern is electrically connected, and a divided line component of the semiconductor mount component and another divided line component are arranged at a predetermined interval to constitute a frequency modulator. Millimeter wave circuit. 12. A millimeter wave circuit comprising an FM modulation oscillator comprising a frequency modulator according to claim 11 and a gun oscillator according to claim 7 arranged at a predetermined interval. 13. A gap component in which two split line components are fixed by a thin conductor plate at a predetermined interval, and the gap component and another split line component are arranged at a predetermined interval. The millimeter wave circuit according to any one of claims 10 to 12. 14. A leaky wave NRD guide, wherein a concave groove is provided in one of the upper and lower conductor plates constituting the NRD guide, and the split line component is inserted into the groove. 2. The millimeter wave circuit according to 1. 15. The semiconductor device according to claim 1, wherein concave grooves are provided on both upper and lower conductor plates constituting said NRD guide, and conductive films are attached to upper and lower portions of said split line component and inserted into said grooves. 9. The millimeter wave circuit according to any one of 8. 16. A split line component obtained by dividing the dielectric line into a predetermined length by a component mounter is mounted on one of the conductor plates forming the NRD guide with the dielectric line interposed therebetween. A method of manufacturing a millimeter-wave circuit, comprising the steps of placing the other conductor plate on the mounted split line component. 17. A step of attaching a double-sided adhesive sheet to a mounting position of the split line component on the one conductor plate before mounting the split line component on the one conductor plate. The method for manufacturing a millimeter wave circuit according to claim 16. 18. The method according to claim 18, further comprising, before mounting the split line component on the one conductor plate, applying an adhesive to a mounting position of the split line component on the one conductor plate. A method for manufacturing a millimeter wave circuit according to claim 16. 19. Before mounting the split line component on the one conductive plate, a concave groove is provided at least at a mounting position of the split line component on the one conductive plate, and conductive bonding is performed on the groove. 17. The method for manufacturing a millimeter-wave circuit according to claim 16, comprising a step of filling an agent. 20. A method of manufacturing a millimeter wave circuit according to claim 16, wherein
A transmission / reception apparatus comprising the millimeter wave circuit according to any one of the above. 21. A method for manufacturing a millimeter wave circuit according to any one of claims 16 to 19.
A radar device comprising the millimeter wave circuit according to any one of the above.