Folding type directional antenna device for satellite

A pointing antenna and folding technology, applied in the field of satellite antennas, can solve the problems of inability to meet working performance requirements, complex layout, and reduced system reliability, and achieve the effect of reducing the impact of the star environment
CN108539360AActive Publication Date: 2018-09-14SHANGHAI SPACEFLIGHT INST OF TT&C & TELECOMM
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI SPACEFLIGHT INST OF TT&C & TELECOMM
Publication Date
2018-09-14

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Abstract

The invention provides a folding type directional antenna device for a satellite. A supporting base can be mounted to the mounting portion of a satellite body; a pitch rotating mechanism is connectedwith the supporting base and is connected with an azimuth rotating mechanism; the azimuth rotating mechanism is connected with an antenna assembly; a restraining device is connected with the antenna assembly; the antenna assembly cannot rotate on the azimuth rotating mechanism when being restrained by the restraining device; and the antenna assembly can be folded relative to the supporting base bymeans of the pitch rotating mechanism; when the restraining device is released, the pitch rotating mechanism can rotate relatively, the azimuth rotating mechanism can rotate relatively, and the rotation axis of the pitch rotating mechanism is perpendicular to the rotation axis of the azimuth rotating mechanism; and the antenna assembly can rotate to realize orientation in different directions through the azimuth rotating mechanism and the pitch rotating mechanism. In a limited satellite installation and use space, the installation of the antenna can be realized, the antenna is far away from the satellite body after the antenna is unfolded, so that the influence of the satellite body can be decreased, and a two-dimensional rotation orientation function can be realized.
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Description

technical field

[0001] The invention relates to the technical field of satellite antennas, in particular to a high-gain narrow-beam two-dimensional directional antenna for satellite communications. Background technique

[0002] In a certain type of satellite project, it is necessary to develop a high-gain antenna with two-dimensional rotation function for ground communication. Since the antenna installation space is very small, and due to the shielding effect of the satellite load layout on the antenna, it is required that the antenna should be as far away from the star installation surface as possible when used in orbit, so as to minimize the influence of the star environment on the antenna radiation performance, and the antenna must have two-dimensional rotation Function.

[0003] At present, the known two-dimensional pointing antennas of the same type used for satellites mostly adopt the configuration scheme of deploying the locking mechanism, X-Y type two-dimensional me...

Claims

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