Inverted-ridge corrugated horn feed source antenna based on balanced feed

A technology of balanced feeding and corrugated horns, which is applied to the antenna, antenna grounding switch structure connection, electrical components, etc., can solve the problems of large side lobes of the pattern and difficult processing of the horn, and achieve low return loss, easy processing, and feeding The effect of simple electrical structure

Active Publication Date: 2020-08-11
BEIHANG UNIV
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  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0006] The technical problem solved by the present invention is to overcome the deficiencies of narrow bandwidth, narrow beam, large pattern sidelobe, and difficult processing of existing horns in the prior art, and provide an inverted ridge corrugated horn feed antenna based on balanced feeding, The feed antenna has the outstanding advantages of wide frequency band, wide beam, simple feeding structure and easy processing

Method used

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  • Inverted-ridge corrugated horn feed source antenna based on balanced feed
  • Inverted-ridge corrugated horn feed source antenna based on balanced feed
  • Inverted-ridge corrugated horn feed source antenna based on balanced feed

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Embodiment Construction

[0029] The specific concept of the present invention is as follows: the balanced feeding technology is commonly used in circular waveguide horn antennas in the early days, but it is not commonly used in ridged horn antennas. differential signal for balanced feeding. But this method of introducing four feed shafts from the bottom makes it difficult for the horn antenna to achieve a good match with the feed line. Using the inverted ridge, the probe is inserted into the ridge sheet from the side of the horn wall and the symmetrical side to realize the feeding, which can well ensure the purity of the excited fundamental mode, suppress the high-order mode, and reduce the return loss of the antenna. . In order to match the cross-shaped inverted ridge extending out of the mouth surface, three axial corrugated grooves are loaded at the mouth surface position by using the corrugated groove technology. The axial corrugated groove can expand the beam width of the frequency band, and the...

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Abstract

The invention relates to an inverted-ridge corrugated horn feed source antenna based on balanced feed. The inverted-ridge corrugated horn feed source antenna comprises a balanced feed structure, an axial corrugated groove, a conical horn wall, a cross inverted ridge, a circular truncated cone and a short circuit plate. The working bandwidth of the antenna is an octave, such as 2-4GHz, the beam width range is 50-70 degrees in the working bandwidth, and the antenna has a very low cross polarization level and can be applied to a test system probe, especially to a compact field feed source. The antenna has the advantages of wide frequency band, low return loss, wide wave beam, simple feed structure, easiness in processing and the like.

Description

technical field [0001] The invention relates to a test system probe, in particular to the technical field of a compact field feed, in particular to an inverted ridge corrugated horn feed antenna based on balanced feed. Background technique [0002] As reflector antennas are more and more widely used in satellite communication, national defense, radio astronomy and other fields, people have put forward requirements for reflector antennas such as broadband, wide beam, and low cross-polarization. The core component, its performance will directly affect the radiation performance of the transmitting surface antenna. The feed antenna can provide a good spherical wave, and it is hoped that it has a low voltage standing wave ratio, a relatively symmetrical radiation pattern, low side lobes, stable phase center, low cross-polarization, and high-performance broadband feed antenna It can solve the problems of tedious testing process and inaccurate results caused by frequent replacemen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q19/13H01Q19/02H01Q1/36H01Q1/50
CPCH01Q1/36H01Q1/50H01Q19/021H01Q19/132
Inventor 张雪王正鹏
Owner BEIHANG UNIV
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