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A design method of a satellite-borne communication hybrid reflector antenna system

A communication hybrid, antenna system technology, applied in the direction of antenna, antenna grounding switch structure connection, calculation, etc., can solve the problem of difficult realization of reflector antenna

Pending Publication Date: 2019-06-14
CHINA ELECTRONICS TECH GRP NO 39 RES INST
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Problems solved by technology

[0006] However, the above two schemes both generate two different beams at the same time in the form of dual-feed and dual-bias structure antennas. The former is a shaped beam and a limited scanning spot beam, and the latter is two shaped beams; when the antenna system is required When generating a shaped beam and simultaneously generating a fixed spot beam and a limited scanning spot beam, it is difficult to implement a reflector antenna in the form of a dual-feed dual-bias structure.

Method used

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  • A design method of a satellite-borne communication hybrid reflector antenna system
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  • A design method of a satellite-borne communication hybrid reflector antenna system

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Embodiment Construction

[0032] Embodiments of the present invention are described in detail below, and the embodiments are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0033] The invention proposes an antenna design method based on a hybrid reflector antenna. The hybrid reflector antenna is composed of a shaped main reflector, a shaped secondary reflector and three feed horns, which can be equivalent to two A single-feed single-offset reflector antenna and a pair of double-offset Gregorian shaped reflector antennas, the geometrical diagram of the antenna is shown in figure 1 , the flow chart of the technical solution is as follows figure 2 , the beam diagram of the hybrid reflector antenna system is as follows image 3 .

[0034] The specific steps are:

[0035] Step 1: Design feeds F1, F2 and F3 according to the basic geometric dimensions of the shaped main reflector antenna, including antenna aperture D, offset height ...

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Abstract

According to a design method of a satellite-borne communication hybrid reflector antenna system, the designed hybrid reflector antenna is a three-feed-source double-bias shaped reflector antenna and can be equivalent to two sets of single-bias reflector antennas and a set of double-bias Gregorian shaped reflector antenna, and the space resources of a satellite platform are further fully utilized.Comparing in the aspect of antenna beam distribution, in the prior art, a corresponding antenna only provides two beams, namely, one formed beam and one point beam (a fixed point beam or a limited scanning point beam), or two formed beams, and the hybrid reflector antenna can simultaneously provide three beams, namely one formed beam, one fixed point beam and one limited scanning point beam.

Description

technical field [0001] The invention relates to the technical field of spaceborne communication antennas, in particular to a design method for a spaceborne communication hybrid reflector antenna system. Background technique [0002] In the satellite communication system, the satellite platform often has limited physical space resources. In order to further improve the utilization rate of the reflector antenna, some secondary service services are added on the basis of ensuring the main service service, such as forming beams as the main communication service. When , another higher gain spot beam is used as a secondary service to meet the communication requirements in special situations. [0003] Literature (MAHAJAN M, JYOTI R, SOOD K, et al.A method of generatingsimultaneous contoured and pencil beams from single shaped reflector antenna[J].IEEE Transactions on Antennas&Propagation,2013,61(10):5297-5301.) adopted The antenna form of the dual-feed single-offset reflector uses ...

Claims

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Application Information

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IPC IPC(8): G06F17/50H01Q1/50H01Q15/14H01Q15/16H01Q19/10
Inventor 李建军赵现斌李小平尹鹏飞梁斌田亚朋
Owner CHINA ELECTRONICS TECH GRP NO 39 RES INST
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