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Cross array circularly polarized antenna

A technology of circularly polarized antennas and cross arrays, which is applied in the field of satellite communications, can solve the problems of narrow antenna beam width and large aperture, and achieve the effects of improving low elevation gain, widening width, and low cost

Inactive Publication Date: 2020-07-24
SPACE STAR TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of this, the present invention provides a cross-array circularly polarized antenna, which aims to solve the problem of narrow beam width and large aperture of the antenna in the prior art

Method used

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Embodiment Construction

[0020] In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present invention. It will be apparent, however, to one skilled in the art that the invention may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, device connections, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0021] In order to illustrate the technical solutions of the present invention, specific examples are used below to illustrate.

[0022] see figure 1 , the cross-array circularly polarized antenna provided by the embodiment of the present invention is suitable for a phased array antenna for large-angle scanning, and specifically includes: an antenna structure 5, a feeding structure 1, and four b...

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Abstract

The invention belongs to the technical field of satellite communication, and provides a cross array circularly polarized antenna. The antenna mainly comprises an antenna structural member, a feed structure and four bent radiation arms. The bent radiation arms have the same structure; the antenna structural member comprises a base structural member and four supporting columns arranged on the base structural member, a top end of each supporting column is provided with one bent radiation arm, feeding probes are arranged in two supporting columns of the four supporting columns, and the two supporting columns provided with the feeding probes are adjacent to each other; and the feed structure is arranged above the bent radiation arms and comprises four connecting ends, each connecting end is fixed to the top end of the corresponding supporting column, and the two connecting ends of the four connecting ends are further connected with the two feed probes respectively. The antenna structure isreliable in fixation, light, low in cost and wide in wave beam, a low elevation gain of the antenna is improved, and the antenna structure is suitable for a phased-array antenna of large-angle scanning.

Description

technical field [0001] The invention belongs to the technical field of satellite communication, and more specifically relates to a cross-array circularly polarized antenna. Background technique [0002] With the advancement of science and technology, the technology of satellite communication is becoming more and more sophisticated, and the requirements for antennas are also getting higher and higher. Traditional microstrip antennas have a variety of structures, but their beam width is narrow, and the gain is low when the phased array scans at a large angle. In the prior art, more antenna elements are often designed to increase the gain in order to meet the gain requirements. This increases the antenna aperture and increases the cost. SUMMARY OF THE INVENTION [0003] In view of this, the present invention provides a cross-array circularly polarized antenna, which aims to solve the problems of narrow beam width and large aperture of the antenna in the prior art. [0004] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/36H01Q1/50H01Q5/50
CPCH01Q1/36H01Q1/50H01Q5/50
Inventor 李航张文杰郭萌董妮妮田烨
Owner SPACE STAR TECH CO LTD