CN203386903U - Broadband high-gain probe and patch tangential feed antenna - Google Patents

Abstract

The utility model provides a broadband high-gain probe and tangent feed mode antenna of paster. Including the floor, the bottom dielectric slab, the middle dielectric layer, the upper dielectric slab, the probe, the paster and the parasitic paster of shaking owner, the parasitic paster is located the lower surface of upper dielectric slab, the paster of shaking owner is located the upper surface of bottom dielectric slab, the paster of shaking owner and parasitic paster are the rectangle, the probe top is at the coplanar with the paster of shaking owner, probe top disc is tangent in the long limit of the paster of shaking owner, the center pin of probe equals the center pin of probe and the distance of the minor face symmetry axis of the paster of shaking owner with the distance of the long limit symmetry axis of the paster of shaking owner, the paster of shaking owner is parallel to each other and the coincidence of the symmetry axis of the two with the parasitic paster. The utility model discloses satisfy millimeter wave band wide band high gain wireless communication's requirement completely, have frequency band width, gain height, feed mode novel, feed simple structure, overall structure advantage such as simple.

Description

Broadband high-gain probe and patch tangential feed antenna

technical field

The utility model relates to a wireless communication antenna.

Background technique

Due to the development of radio communication equipment and electronic information equipment towards multi-function, miniaturization, ultra-wideband, frequency upshift, and friendly coordination with the surrounding environment, this makes broadband, miniaturization, high-gain, and millimeter-wave antennas become domestic and foreign One of the hot topics of research. It involves the broadband impedance matching technology of the antenna, the loading technology of the antenna, the reactance compensation technology of the antenna and other advanced technologies and processes.

In recent years, with the vigorous development of the wireless communication industry and the increase of communication capacity, the frequency band of the antenna has gradually developed from the low frequency band to the high frequency band. The currently used Ku, K, and Ka frequency bands are becoming more and more crowded. Therefore, antenna design in millimeter wave band and submillimeter wave band is an inevitable trend of antenna development. With the miniaturization of T/R components and the vigorous development of digitalization, the application range of solid-state active phased array antennas is becoming wider and wider. In addition to considering the cost, the most advanced fighters in the world currently use the form of solid-state active phased array antennas, and the space-borne antennas are gradually adopting the form of active phased arrays. Therefore, the design of solid-state active phased array antenna elements in the millimeter wave band is a trend in the development of antennas.

The millimeter-wave microstrip antenna has been developed for nearly 30 years, and it appeared almost simultaneously with microstrip antennas in other bands, such as microwave microstrip antennas. In the early 1970s, there was a lot of interest in microstrip antennas. This is because the microstrip antenna has many advantages such as small size, light weight, thin profile, low cost, easy conformal shape, and easy integration. Combining many inherent characteristics of millimeter waves, such as short wavelength, wide frequency band, and good propagation characteristics in fog, snow, dust, etc., millimeter wave microstrip antennas have also attracted the attention of antenna researchers around the world during the same period.

For the frequency band of the microstrip antenna, there are many ways to broaden it, such as choosing a low dielectric constant and a thick dielectric substrate, and properly slotting the patch, and so on. Previously, it has been mentioned to increase the frequency band and increase the gain by adding parasitic patches, and it is proposed to use double L-shaped probe feeding to increase the frequency band and gain of the antenna. However, these methods are not ideal, such as complex structure, cumbersome design, poor versatility, high processing cost, and certain defects in performance, so they are not suitable for promotion. Therefore, it has become a trend to design new millimeter-wave band broadband high-gain antennas.

Contents of the invention

The purpose of this utility model is to provide a broadband high-gain probe and patch tangential feeding antenna that can be applied to millimeter wave band (49GHz-70GHz) wireless communication, and has a low profile, small volume, simple structure, and easy processing.

The purpose of this utility model is to realize like this:

Including the floor, the bottom dielectric board, the middle dielectric layer, the upper dielectric board, the probe, the main vibration patch and the parasitic patch. The parasitic patch is located on the lower surface of the upper dielectric board, and the main vibration patch is located on the upper surface of the bottom dielectric board. Both the main vibration patch and the parasitic patch are rectangular, the tip of the probe is on the same plane as the main vibration patch, the round surface of the probe tip is tangent to the long side of the main vibration patch, the central axis of the probe is in line with the main vibration patch The distance between the long-side symmetry axis is equal to the distance between the central axis of the probe and the short-side symmetry axis of the main vibration patch, and the main vibration patch and the parasitic patch are parallel to each other and their symmetry axes coincide.

The utility model can also include:

1. The ratio of the long side to the short side of the main vibration patch is 2:1; the ratio of the long side to the short side of the parasitic patch is 2:1.

2. The ratio of the long side of the main vibration patch to the long side of the parasitic patch is 2:1; the ratio of the short side of the main vibration patch to the short side of the parasitic patch is 2:1.

3. A feeding coaxial cable is connected to the lower part of the floor, and the signal line of the coaxial cable is connected to the probe after passing through the metal floor, and the floor is connected to the ground wire of the feeding coaxial cable.

4. The symmetry axes of the floor, the bottom dielectric board, the middle dielectric layer, the upper dielectric board, the main vibration patch and the parasitic patch are all coincident.

Compared with the prior art, the utility model has the following advantages and positive effects:

(1) The utility model broadband high-gain probe and patch tangential feed antenna have frequency bandwidth (simulation bandwidth 49GHz-70GHz, absolute bandwidth reaches 21GHz), high gain (simulation software simulation 55GHz-69GHz gain is above 10dBi ), the overall structure is simple, the feeding type is novel, the feeding structure is simple, etc., the utility model antenna fully meets the requirements of the millimeter-wave band wide-band high-gain wireless communication.

(2) The broadband high-gain probe and patch tangential feed antenna of this utility model can be completely applied to the needs of spaceborne, airborne, missile-borne and ground millimeter-wave wireless communications; in addition, the premise of not changing the antenna structure Next, by changing the size of the antenna, the millimeter-wave band antenna can be applied to wireless communication systems in other frequency bands.

(3) The broadband high-gain probe and patch tangential feeding antenna of the utility model also has the advantages of a novel feeding method and a simple feeding structure in which the probe and the patch are tangential.

(4) The broadband high-gain probe and patch tangential feed antenna of the utility model also has the advantages of low profile, simple structure, easy processing and low cost.

Description of drawings

Fig. 1 is a three-dimensional view of the broadband high-gain probe and patch tangential feed antenna of the utility model.

Fig. 2 is a top view of the broadband high-gain probe and patch tangential feed antenna of the utility model.

Fig. 3 is a plan view of the probe and patch tangential feeding mode in the broadband high-gain probe and patch tangential feeding mode antenna of the present invention.

Fig. 4 is a plan view of the broadband high-gain probe of the utility model and the two patches in the patch tangential feeding antenna.

Detailed ways

The content of the utility model will be further described below in conjunction with the accompanying drawings, but the practical application form of the utility model is not limited to the illustrated embodiment.

Combining Figures 1 and 2, the broadband high-gain probe and patch tangential feed antenna includes an upper dielectric plate 1, a parasitic patch 2, a middle dielectric plate 3, a main vibration patch 4, a feeding probe 5, and a lower layer Dielectric plate 6 and ground plate 7.

Combined with Figure 3, the main vibration patch 4 and the feeding probe 5 are tangent to form a tangential feeding mode between the probe and the patch, and the central axis of the feeding probe 5 is symmetrical to the two sides of the main vibration patch 4 The distance is equal to d.

Combined with Figure 4, the parasitic patch 2 and the main vibrating patch 4 are axisymmetrically distributed, the ratio of the long side to the short side of the parasitic patch 2 and the main vibrating patch 4 is 2:1, and the parasitic patch 2 and the main vibrating patch The ratio of the long side to the short side of each sheet 4 is 2:1.

The floor 7 is made of a good conductor, and a circular hole is opened at the feeding point to facilitate the passage of the signal line of the feeding coaxial cable, thereby connecting with the feeding probe 5 . The floor 7 is connected to the ground wire of the feeding coaxial cable.

The utility model broadband high-gain probe and patch antenna with tangential feeding mode have reached the following working parameters: working bandwidth 49GHz-70GHz; simulation software simulation 55GHz-69GHz gain is above 10dBi; the feeding method is novel and the feeding structure is simple . At the same time, the broadband high-gain probe and patch tangential feeding mode antenna of the utility model also has the characteristics of low profile, simple structure and easy processing.

Although the present invention is disclosed above with preferred implementation examples, they are not intended to limit the invention. Any person familiar with this art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the present invention The scope of protection shall be defined by the scope of protection of the claims of this application.

Claims (9)

1. A broadband high-gain probe and patch tangential feed mode antenna, comprising floor, bottom dielectric plate, intermediate dielectric layer, upper layer dielectric plate, probe, main vibrating patch and parasitic patch, is characterized in that: The parasitic patch is located on the lower surface of the upper dielectric board, and the main vibration patch is located on the upper surface of the bottom dielectric board. Both the main vibration patch and the parasitic patch are rectangular. The top of the probe is on the same plane as the main vibration patch, and the top of the probe The circular surface is tangent to the long side of the main vibrating patch, the distance between the central axis of the probe and the symmetry axis of the long side of the main vibrating patch is equal to the distance between the central axis of the probe and the short side of the symmetry axis of the main vibrating patch, the main vibrating The patch and the parasitic patch are parallel to each other and their symmetry axes coincide. 2. broadband high-gain probe according to claim 1 and patch tangential feed mode antenna, it is characterized in that: the ratio of the long side and the short side of main vibration patch is 2:1; The long side of parasitic patch The ratio of side to short side is 2:1. 3. The broadband high-gain probe and patch tangentially fed antenna according to claim 1 or 2, characterized in that: the ratio of the long side of the main vibrating patch to the long side of the parasitic patch is 2:1 ; The ratio of the short side of the main vibration patch to the short side of the parasitic patch is 2:1. 4. The broadband high-gain probe and patch tangential feed antenna according to claim 1 or 2, is characterized in that: a feed coaxial cable is connected to the bottom of the floor, and the signal line of the coaxial cable passes through A metal floor is then connected to the probe, said floor being connected to the ground of the feeding coaxial cable. 5. The wideband high-gain probe and patch tangential feeding antenna according to claim 3 is characterized in that: a feeding coaxial cable is connected to the bottom of the floor, and the signal line of the coaxial cable passes through the metal floor After connecting to the probe, the ground is connected to the ground of the feeding coaxial cable. 6. The broadband high-gain probe and patch tangential feed antenna according to claim 1 or 2, characterized in that: the floor, the bottom dielectric board, the middle dielectric layer, the upper dielectric board, the main vibration patch and the parasitic The symmetry axes of the patches are all coincident. 7. The broadband high-gain probe and patch tangential feed antenna according to claim 3 is characterized in that: floor, bottom dielectric board, intermediate dielectric layer, upper dielectric board, main vibration patch and parasitic patch The axes of symmetry coincide. 8. The broadband high-gain probe and patch tangential feed antenna according to claim 4, characterized in that: the floor, the bottom dielectric board, the middle dielectric layer, the upper dielectric board, the main vibration patch and the parasitic patch The axes of symmetry coincide. 9. The broadband high-gain probe and patch tangential feed antenna according to claim 5, characterized in that: floor, bottom dielectric board, intermediate dielectric layer, upper dielectric board, main vibration patch and parasitic patch The axes of symmetry coincide.

Images