CN209880812U

CN209880812U - Microstrip antenna

Info

Publication number: CN209880812U
Application number: CN201921095790.0U
Authority: CN
Inventors: 董超; 刘荣
Original assignee: Chengdu Meng Sheng Electronic Technology Ltd By Share Ltd
Current assignee: Chengdu Meng Sheng Electronic Technology Ltd By Share Ltd
Priority date: 2019-07-12
Filing date: 2019-07-12
Publication date: 2019-12-31
Anticipated expiration: 2029-07-12

Abstract

The utility model discloses a microstrip antenna, which comprises a cavity, wherein a microwave board is arranged in the cavity, the upper surface of the microwave board is provided with a radiation patch, and a metallization hole is arranged on the radiation patch; the upper end of the cavity is provided with an antenna housing; the antenna housing is fixed with the microwave board through a screw, and the screw is contacted with the radiation patch; the lower end of the cavity is provided with a feed network, and the feed network is connected with the connector; a metal probe feed point for connecting the radiation patch and the feed network is arranged on the microwave board; the utility model discloses neither adopt fragile ceramic material, also do not adopt and carry out the type processing altogether to microwave panel, on satisfying the due electrical characteristics of antenna and radiation characteristic basis, be that the screw both had been used as fixed antenna house, also regard as antenna loaded partly simultaneously, not only can reduce the whole thickness of antenna, can also keep good frequency bandwidth and higher gain, the batch production of being more convenient for.

Description

Microstrip antenna

Technical Field

The utility model relates to an antenna field, concretely relates to microstrip antenna.

Background

In a common mode structure, the available space is very limited, and the existing microstrip antenna miniaturization technology mostly uses a ceramic material with high dielectric constant or realizes miniaturization in a radiation patch loading (slotting) mode. Or a common antenna is adopted, and the space is fully utilized, so that the area of the radiation patch is not reduced, and the due electrical and radiation performance is realized.

The ceramic material has the advantages of high dielectric constant, low loss and the like. Meanwhile, the method has the defects of frangibility, high processing technology requirement, difficulty in debugging, difficulty in fixing and the like. Therefore, under high vibration requirements, ceramic materials are not generally used as the substrate of the antenna.

The common-mode antenna is a better scheme, but the base material needs to be subjected to common-mode treatment on a conventional microwave board, the processing flow of the common-mode antenna is complex, and the bending degree of the common-mode antenna is also limited by the microwave board, so that the common-mode antenna is not suitable for batch production.

The prior art drawbacks are mainly due to the properties of the materials. Although the brittle or difficult-to-process material does not affect the use of the product in terms of performance, it is not suitable for mass production due to the above limitations.

SUMMERY OF THE UTILITY MODEL

Not enough to the above-mentioned among the prior art, the utility model provides a pair of microstrip antenna has solved the unsuitable mass production's of current microstrip antenna problem.

In order to achieve the purpose of the invention, the utility model adopts the technical scheme that:

the microstrip antenna comprises a cavity, wherein a microwave plate is arranged in the cavity, a radiation patch is arranged on the upper surface of the microwave plate, and a metalized hole is formed in the radiation patch; the upper end of the cavity is provided with an antenna housing; the antenna housing is fixed with the microwave board through a screw, and the screw is contacted with the radiation patch; the lower end of the cavity is provided with a feed network, and the feed network is connected with the connector; and a metal probe feed point for connecting the radiation patch and the feed network is arranged on the microwave board.

The utility model has the advantages that: the utility model discloses neither adopt fragile ceramic material, also do not adopt and carry out the type processing altogether to microwave panel, on satisfying the due electrical characteristics of antenna and radiation characteristic basis, be that the screw both had been used as fixed antenna house, also regard as antenna loaded partly simultaneously, not only can reduce the whole thickness of antenna, can also keep good frequency bandwidth and higher gain, the batch production of being more convenient for. The utility model discloses can be with microstrip antenna's size control at 30mm x 2mm, very big dwindle microstrip antenna's volume.

Drawings

Fig. 1 is a cross-sectional view of the present invention;

fig. 2 is the utility model discloses the plan view behind the division antenna house.

Wherein: 1. a cavity; 2. an antenna cover; 3. a screw; 4. microwave board material; 5. a connector; 6. a feed network; 7. a radiation patch; 8. a metal probe feed point; 9. and (6) metalizing the holes.

Detailed Description

The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and various changes will be apparent to those skilled in the art as long as they are within the spirit and scope of the present invention as defined and defined by the appended claims, and all inventions contemplated by the present invention are protected.

As shown in fig. 1 and 2, the microstrip antenna includes a cavity 1, a microwave board 4 is disposed in the cavity 1, a radiation patch 7 is disposed on an upper surface of the microwave board 4, and a metallization hole 9 is disposed on the radiation patch 7; the upper end of the cavity 1 is provided with an antenna housing 2; the antenna housing 2 is fixed with the microwave board 4 through a screw 3, and the screw 3 is contacted with the radiation patch 7; the lower end of the cavity 1 is provided with a feed network 6, and the feed network 6 is connected with a connector 5; the microwave board 4 is provided with a metal probe feed point 8 for connecting the radiation patch 7 and the feed network 6.

In the specific implementation process, the loading can be adjusted by adjusting the position of the screw 3, and the inductance of the antenna can also be adjusted by the metallized hole 9. The connector 5 serves as an input or output of the antenna.

To sum up, the utility model discloses neither adopt fragile ceramic material, also do not adopt and carry out the type processing altogether to microwave board, on satisfying the due electrical characteristics of antenna and radiation characteristic basis, be that the screw both had been used as fixed antenna house, also regarded as antenna loaded partly simultaneously, not only can reduce the whole thickness of antenna, can also keep good frequency bandwidth and higher gain, the batch production of being more convenient for. The utility model discloses can be with microstrip antenna's size control at 30mm x 2mm, very big dwindle microstrip antenna's volume.

Claims

1. A microstrip antenna, characterized by: the microwave heating device comprises a cavity (1), wherein a microwave plate (4) is arranged in the cavity (1), a radiation patch (7) is arranged on the upper surface of the microwave plate (4), and a metallization hole (9) is formed in the radiation patch (7); an antenna housing (2) is arranged at the upper end of the cavity (1); the antenna housing (2) is fixed with the microwave board (4) through a screw (3), and the screw (3) is in contact with the radiation patch (7); the lower end of the cavity (1) is provided with a feed network (6), and the feed network (6) is connected with a connector (5); and a metal probe feed point (8) for connecting the radiation patch (7) and the feed network (6) is arranged on the microwave board (4).