CN201167130Y - Plane ultra-wideband coupling antenna - Google Patents

Abstract

The utility model relates to a plane ultra wide band coupling antenna, it including: an insulating substrate is provided with a printed metal film layer; a first radiation part printed on the insulating substrate and having a coupling section for energy coupling with the second radiation part and extending to a feed-in point for electrically connecting with the signal feed-in line; a second radiation part printed with metal film on the insulating substrate, with an extension turn connected to the grounding part and a corresponding electrically insulated space between the free end and the coupling section of the first radiation part; a grounding part formed by a metal film layer electric conductor, one end of the grounding part is electrically connected with the second radiation part, and the grounding part has the same potential with the grounding end of the antenna receiver; a signal feed-in line, which is a coaxial cable, the main signal end line of which is electrically connected with the feed-in point of the first radiation part, and the grounding end line of which is electrically connected with the grounding part, for transmitting the signal to the receiving/transmitting circuit.

Description

Planar UWB Coupling Antenna

technical field

The utility model relates to a planar ultra-broadband coupling antenna, in particular to a plane, which is provided with an inverted F antenna and a monopole antenna coupled together, has dual frequency and small size, and provides wireless networks. The dual-frequency antenna used can achieve an optimized planar ultra-wideband frequency response through coupling.

Background technique

There are four standards for WLAN, including IEEE802.11, IEEE802.11b and Bluetooth applicable in the 2.4GHz frequency band, and IEEE802.11a applicable in the 5GHz frequency band. When multiple wireless frequency bands are used, corresponding antennas are required to cooperate.

Please refer to the perspective view of the existing dual-frequency antenna 100 in Fig. 1, which uses an inverted F-type dual-frequency antenna to receive signals of a first frequency and a second frequency, and the antenna 100 is provided with a first plane 200 The conduction element and a second plane 300 conduction element, the first plane 200 conduction element is an L-shaped structure, and the second plane 300 conduction element is a curved rectangular structure, and is perpendicular to the first plane conduction element And connected at a contact point 400, when the area of the conductive component of the second plane 300 is too large, it is easy to cause the breakage of the joint with the conductive component of the first plane 200. But the above-mentioned antenna 100 can adjust its bandwidth, impedance matching and gain through the shape of the first planar conduction component and the second planar conduction component, but the area size of the second planar conduction component often affects The gain of the above-mentioned antenna, if the antenna needs to increase the bandwidth, it will inevitably increase its substrate area, so it is limited to the space between the embedded device, so the above-mentioned antenna cannot effectively and fully expand its substrate area.

The generalization of the prior art therefore has the following disadvantages:

1. The existing technology is limited by the limited space and cannot achieve high bandwidth.

2. In the prior art, when the area of the second planar conduction component is too large, it is easy to cause breakage at the connection point with the first planar conduction component.

3. When the prior art is used, the induction resonance ability is insufficient, the voltage standing wave is relatively small, and the circuit design is difficult.

4. The prior art has the disadvantages of cumbersome processing, high manufacturing cost and difficult installation.

Therefore, how to get rid of the above defects is the technical difficulty that the designer of the utility model in this case wants to solve. In view of this, the utility model designer of this case, based on years of experience in related product design, felt the inconvenience of the above-mentioned traditional products. After years of painstaking research and trial improvement, he was able to eliminate many shortcomings of the existing dual-band antenna and successfully developed it. Finish this case, make the utility model be born, and to enhance effect.

Contents of the invention

The purpose of the utility model is to provide a planar ultra-broadband coupling antenna, especially on the plane, there is an inverted F antenna and a monopole antenna coupled together, with dual frequency and small size, providing the wireless network used The dual-frequency antenna can achieve an optimized ultra-wide band 2-6 megahertz frequency response through coupling.

The purpose of the utility model is also to provide a device with the advantages of low manufacturing cost, simple manufacturing process, easy installation and use, and low profile and light weight.

Another purpose of the utility model is to provide a small size, suitable for use with various types of electronic communication equipment, and has market competitiveness, which is useful and practically required by the industrial and commercial circles.

Another object of the present invention is to provide a low feed-in loss and low reflection loss with dual frequency, keeping the broadband characteristics of the coupling antenna, and high radiation efficiency.

In order to realize the purpose of these utility models, and according to such as implementation and general description and other advantages, the utility model provides a kind of planar ultra-broadband coupling antenna, and it is that technical scheme is, and it comprises:

An insulating substrate is provided with a metal thin film layer for printing;

A first radiating part, which is a metal thin film layer printed on an insulating substrate, is provided with a coupling section for energy coupling with the second radiating part, and extends to a feed-in point to be electrically connected to a signal feed-in line;

A second radiating part is a metal film layer printed on the insulating substrate, which is connected to the ground part to extend and turn, and between its free end and the coupling section of the first radiating part to form an electrically insulated corresponding Spacing, in order to achieve the optimal frequency response of coupling energy induction;

A grounding part is formed by a metal film layer electrical conductor, one end of which is electrically connected to the second radiation part, and the grounding part is at the same potential as the grounding end of the antenna receiver;

A signal feed-in line, which is a coaxial cable, its main signal terminal line is electrically connected to the feed-in point of the first radiation part, and its ground terminal line is electrically connected to the ground part to transmit the signal To the receiving/transmitting circuit.

In another aspect of the present invention, the planar ultra-broadband coupling antenna further includes, wherein the total length of the first radiating part from the feeding point to the free end is about a quarter of the frequency response wavelength.

In another aspect of the present utility model, the planar ultra-broadband coupling antenna further includes, wherein the frequency radiation frequency band of the first radiating part is 2.0 megahertz.

In another aspect of the present utility model, the planar ultra-broadband coupling antenna further includes, wherein the total length of the second radiating part is about a quarter of the frequency response wavelength.

In another aspect of the present utility model, the planar ultra-broadband coupling antenna further includes, wherein the frequency radiation frequency band of the second radiating part is 6.0 megahertz.

Compared with the prior art, the utility model has the advantages of solving the problem of dual-frequency coupling antenna, small size and high quality, suitable for use with various types of electronic communication equipment, and has market competitiveness for the industrial and commercial circles. Use value and actual needs. It can achieve an optimized frequency response through coupling, providing a dual-band antenna used in wireless networks. It achieves the effects of low manufacturing cost, simple processing, easy use and installation, and also has the effect of low profile and light weight.

Description of drawings

Figure 1 is a three-dimensional view of an existing dual-frequency antenna;

Fig. 2 is the plan view of the utility model;

Fig. 3 is the coupling section schematic diagram of the present utility model;

Fig. 4 is the embodiment diagram of the present utility model.

Explanation of reference signs: 100-antenna; 200-first plane; 300-second plane; 400-contact; 1-plane ultra-broadband coupling antenna; 10-insulating substrate; 20-first radiating part; 21-coupling section; 22-feeding point; 23-free end; 30-second radiation part; 31-free end; 40-grounding part; 50-signal feeding line; 51-main signal terminal line; 52-grounding terminal line; a1, a2 - corresponding spacing; b1, b2 - width.

Detailed ways

The above-mentioned and other technical features and advantages of the present invention will be described in more detail below in conjunction with the accompanying drawings.

First please refer to shown in Fig. 2 to Fig. 4, it is the plan view of the present utility model, the schematic diagram of the coupling section of the present utility model and the embodiment figure of the present utility model, wherein the planar ultra-broadband coupling antenna 1 of the present utility model, its feature comprises:

An insulating substrate 10 is provided with a metal thin film layer for printing;

A first radiating part 20 is printed on an insulating substrate as a metal thin film layer, which is provided with a coupling section 21 for energy coupling with the second radiating part 30, and extends to a feed-in point 22 to be electrically connected to the signal feed-in line 50, wherein The total length of the first radiating part 20 from the feeding point 22 to the free end 23 is about a quarter of the frequency response wavelength, and the frequency radiation frequency band of the first radiating part 20 is 2.0 million hertz;

A second radiating part 30 is printed on the insulating substrate as a metal thin film layer, and it is connected to the ground part 40 to extend and turn, and between its free end 31 and the coupling section 21 of the first radiating part 20, a The corresponding intervals a1 and a2 of the electrical insulation distance are used to achieve the optimal frequency response of coupling energy induction, wherein the total length of the second radiation part 30 is about a quarter of the frequency response wavelength, and the second The frequency radiation frequency band of the radiation part 30 is 6.0 megahertz;

A grounding part 40 is formed by a metal film layer electrical conductor, one end thereof is electrically connected to the second radiation part 30, and the other grounding part 40 is at the same potential as the grounding end of the antenna receiver;

A signal feed-in line 50 is a coaxial cable, and its main signal terminal line 51 is electrically connected to the feed-in point of the first radiating part 20, and its ground terminal line 52 is electrically connected to the ground part 40 to connect The said signal is sent to the receiving/transmitting circuit.

Please also refer to FIG. 3 , between the second radiating portion 30 and the first radiating portion 20, a corresponding interval a1, a2 of an electrical insulation distance is formed, and through the corresponding interval a1, a2 and the second The widths b1 and b2 of the radiating part 30 can be adjusted to achieve the optimal frequency response of coupling energy induction.

In order to make the utility model also show its progress and practicality, its advantages are enumerated as follows:

1. The utility model has low manufacturing cost, simple manufacturing process and easy installation.

2. The utility model has the advantages of low profile and light weight.

3. Small size, suitable for use with various types of electronic communication equipment, and has market competitiveness.

4. It has application value and actual needs in the industrial and commercial circles and industries.

To sum up, the utility model has indeed achieved the desired effect after breaking through the previous technical structure, and it is not easy for those who are familiar with the above-mentioned technical skills to think about it; moreover, the utility model has not been disclosed before the application , its progressiveness and practicability have obviously met the application requirements for a new model patent, and a new model application is filed in accordance with the law.

The above description is only illustrative, rather than restrictive, of the present invention. Those of ordinary skill in the art understand that many modifications and changes can be made without departing from the spirit and scope defined by the following appended claims. Or equivalent, but all will fall within the protection domain of the present utility model.

Claims (5)

1, a kind of plane ultra broadband coupled antenna, it is characterized in that: it includes:

One insulated substrate provides printing metal film layer is set;

One first Department of Radiation, for metal film layer is printed on the insulated substrate, it is provided with the coupling of a coupled section and one second Department of Radiation energy, and extends to a load point and be electrically connected with signal feed-in line;

Described second Department of Radiation, for metal film layer is printed on the described insulated substrate, it extends turnover at a grounding parts place, between its free end and the described first Department of Radiation coupled section, forms a corresponding spacing that is electrically insulated;

Described grounding parts is to be formed by the electrical conductor of a metal film layer, and the one end is electrically connected with described second Department of Radiation, and the earth terminal of described grounding parts and antenna receiver is idiostatic in addition;

One signal feed-in line is coaxial wire, and its main signal end line is electrically connected with the load point of described first Department of Radiation, and its ground connection end line is electrically connected with described grounding parts again, in order to described signal is sent in reception/radiating circuit.

2, plane according to claim 1 ultra broadband coupled antenna, it is characterized in that: described first Department of Radiation is 1/4th of a frequency response wavelength from load point to free-ended total length.

3, plane according to claim 1 ultra broadband coupled antenna, it is characterized in that: the frequency radiation frequency range of described first Department of Radiation is 2.0 MHz.

4, plane according to claim 1 ultra broadband coupled antenna, it is characterized in that: the described second Department of Radiation total length is 1/4th of a frequency response wavelength.

5, plane according to claim 1 ultra broadband coupled antenna, it is characterized in that: the frequency radiation frequency range of described second Department of Radiation is 6.0 MHz.

Images