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Satellite-borne L-band helical antenna

A helical antenna and helical wire technology, which is applied in the field of satellite antennas, can solve the problems of difficult to achieve wide beam radiation, low gain at low elevation angles, and large volume, and achieve the effect of simple and reliable structure, high gain, and small volume

Pending Publication Date: 2020-05-12
江苏屹信航天科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem mainly solved by the present invention is to provide a space-borne L-band helical antenna, which solves the problems in the prior art that the space-borne L-band helical antenna has a large volume, heavy weight, low gain at low elevation angles, and difficulty in realizing wide-beam radiation.

Method used

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  • Satellite-borne L-band helical antenna
  • Satellite-borne L-band helical antenna
  • Satellite-borne L-band helical antenna

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Embodiment Construction

[0025] In order to facilitate the understanding of the present invention, the present invention will be described in more detail below in conjunction with the accompanying drawings and specific embodiments. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0026] It should be noted that, unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by those skilled in the technical field of the present invention. Terms used in the description of the present invention are only for the purpose of describing specific embodiments, and are not used to limit the present invention.

[0027] ...

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Abstract

The invention discloses a satellite-borne L-band helical antenna. The satellite-borne L-band helical antenna comprises a balun which is vertically arranged, and the balun is provided with a vertical balun through hole; a feed pin is arranged in the balun through hole; a vertical yoke flow groove is formed in the balun; the yoke flow groove communicates with the balun through hole; the top of the balun is provided with a feed sheet; and the feed sheet is connected with the balun and the feed pin. The balun is provided with a first spiral line and a second spiral line which spirally rise aroundthe vertical axis of the balun, a radius difference exists between the vertical projection radius of the first spiral line and the vertical projection radius of the second spiral line, and the bottomof the feed pin extends out of the balun through hole and is connected with a feed connector. The satellite-borne L-band helical antenna is small in size, light in weight and simple and reliable in structure, has high gain at a low pitch angle, and realizes wide beam radiation.

Description

technical field [0001] The invention belongs to the field of satellite antennas, in particular to a space-borne L-band helical antenna. Background technique [0002] The L-band antenna is installed on the satellite, and its main function is to cooperate with other components to establish an information transmission channel between the satellite and the ground station for measurement and control, and complete satellite-ground measurement, control and communication. The existing antenna structure is complex and has low reliability and poor stability. Polarization, the gain of the antenna at low elevation angles is low, and wide beam radiation cannot be achieved. At the same time, the antenna is also bulky and heavy. [0003] Therefore, how to make the spaceborne L-band helical antenna small in size and light in weight while having high gain at low elevation angles is a technical problem to be solved by those skilled in the art. Contents of the invention [0004] The technic...

Claims

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Application Information

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IPC IPC(8): H01Q1/28H01Q1/36H01Q1/50
CPCH01Q1/288H01Q1/36H01Q1/50
Inventor 肖旭吴迪项阳
Owner 江苏屹信航天科技有限公司
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