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A Circularly Polarized Waveguide Slot Antenna for Satellite

A technology of circularly polarized waves and slot antennas, applied in the field of satellite communications, can solve the problems of high cost, low gain, and difficult integration of antennas, and achieve the effects of low cost, improved conformal ability, and simple structure

Active Publication Date: 2022-04-26
成都国星宇航科技股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the embodiment of the present application is to provide a circularly polarized waveguide slot antenna for satellites, which is used to improve the problems of difficult integration, high cost and low gain of antennas used for commercial satellites in the prior art

Method used

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  • A Circularly Polarized Waveguide Slot Antenna for Satellite
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  • A Circularly Polarized Waveguide Slot Antenna for Satellite

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Embodiment Construction

[0030] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

[0031] The application provides a circularly polarized waveguide slot antenna for satellites, including: a microstrip radio frequency board and a waveguide.

[0032] The microstrip radio frequency board can be an integrated radio frequency transmission link or a radio frequency reception link, which has the ability to form high-frequency signals and is integrated on the PCB, and can lead out electromagnetic signals through the microstrip line. Its main function is to be a circularly polarized waveguide The slot antenna provides a source of electromagnetic signals.

[0033] The microstrip radio frequency board includes a radio frequency chip and a microstrip line connected to the radio frequency chip. The radio frequency chip is used to transmit high-frequency signals, and the microstrip line is used...

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Abstract

The application provides a circularly polarized waveguide slot antenna for satellites, including: a microstrip radio frequency board, including a radio frequency chip and a microstrip line connected to the radio frequency chip, the radio frequency chip is used to transmit high-frequency signals, and the microstrip line is used for Convert the high-frequency signal into an electromagnetic signal; the waveguide is connected with the microstrip radio frequency board, and a waveguide cavity is formed inside the waveguide, and the electromagnetic signal propagates in the waveguide cavity, and a waveguide gap is opened on the cavity wall of the waveguide away from the microstrip radio frequency board Combination, the waveguide slot combination is used for circularly polarized radiation of the electromagnetic signal propagating in the waveguide cavity. By setting the waveguide cavity and the waveguide slot opened on the waveguide cavity as the radiation system of the antenna, the advantages of high gain, high efficiency and low side lobe are realized; the microstrip radio frequency board is set as the feeding system of the antenna, so that the antenna It has the advantages of simple structure, easy integration and low cost.

Description

technical field [0001] The present application relates to the field of satellite communication, in particular, to a circularly polarized waveguide slot antenna for satellites. Background technique [0002] Existing commercial satellites usually use flat panel antennas, reflector antennas, lens antennas or waveguide slot antennas. The flat panel antenna has the advantages of low profile, the integration of active components, and the integrated design of the radiation unit and the network. However, the dielectric loss of the panel antenna is large, and there is a leakage wave effect, the gain of the antenna unit is low, and the loss of the feed network is large. [0003] The reflector antenna has good radio frequency performance, and also has the advantages of low dropout and high radiation efficiency, but the physical size of the reflector antenna is relatively large, so it is not suitable for some occasions where the installation space is small. [0004] Lens antennas are ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q13/06H01Q13/18H01Q1/36H01Q1/50H01Q1/28H01Q23/00
CPCH01Q13/06H01Q13/18H01Q1/36H01Q1/50H01Q1/288H01Q23/00
Inventor 郭涛赵宏杰陆川程勇钢张辉
Owner 成都国星宇航科技股份有限公司
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