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An Inverted Ridge Corrugated Horn Feed Antenna Based on Balanced Feed

A technology of balanced feeding and corrugated horn, applied in the direction of 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 the expansion of bandwidth, ease of processing, and enhanced control capabilities. Effect

Active Publication Date: 2021-10-08
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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  • An Inverted Ridge Corrugated Horn Feed Antenna Based on Balanced Feed
  • An Inverted Ridge Corrugated Horn Feed Antenna Based on Balanced Feed
  • An Inverted Ridge Corrugated Horn Feed Antenna Based on Balanced Feed

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Embodiment Construction

[0029] The specific idea of ​​the present invention is as follows: balanced feed technology was commonly used in circular waveguide horn antennas in the early days, but it was not commonly used in ridged horn antennas. Some people used four-axis feed at the bottom of the horn to feed the upper and lower ridges Differential signals for balanced feed. But this method of introducing four feed axes from the bottom will make it difficult to achieve a good match between the horn antenna and the feed line. Using the inverted ridge, insert the probe into the ridge from the side of the horn wall and the symmetrical side to realize the feed, which can ensure the purity of the fundamental mode of the excitation, suppress the high-order mode, and reduce the return loss of the antenna. . In order to cooperate with the cross-shaped inverted ridge protruding from the mouth surface, using the corrugated groove technology, three axial corrugated grooves are loaded at the position of the mouth...

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Abstract

The invention relates to an inverted ridge corrugated horn feed antenna based on balanced feeding, comprising a balanced feeding structure, an axial corrugated groove, a conical horn wall, a cross-shaped inverted ridge, a circular frustum, and a short circuit board; the working bandwidth of the invention is one Octave frequency, such as 2-4GHz, within the working bandwidth, the beam width ranges from 50° to 70°, and has a very low cross-polarization level, which can be applied to test system probes, especially in compact field feeds . The antenna has the advantages of wide frequency band, low return loss, wide beam, simple feeding structure, easy processing and the like.

Description

technical field [0001] The invention relates to the technical field of test system probes, in particular to compact field feed sources, and 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 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. At the same time, 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 a high-performance broadband feed antenna. It can solve the problems of cumbersome test process and inaccurate results caused b...

Claims

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Application Information

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Patent Type & Authority Patents(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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