Analysis and Application of Antenna Capability Factor for Communications Satellite
In response to the current lack of a unified technical framework for satellite performance assessment between regular beam satellite and high-throughput satellite in different frequency bands,as well as the need for iterative design of antenna coverage performance in the initial de-sign stage of satellites,a communications satellite antenna capability factor that combines the gain and the beam coverage area of the satellite antenna is proposed.This parameter is indepen-dent of the gain and beam coverage area of antenna.The satellite performance evaluation method using this parameter can compare the antennas of regular beam satellite and high-throughput satellite in different frequency bands under a unified technical framework.In addition,based on the statistical mean of the antenna capability factors of communications satellites with different on-orbit technology system,a fast design method for satellite antenna beams is proposed,which can solve the fast iterative problem of antenna coverage performance in the initial design stage of satellite.The application of this factor to the engineering design of satellite antenna beam shows that the design scheme of satellite antenna beam has high accuracy,the efficiency of satellite de-sign process can be effectively improved,and the factor has application and promotion value.
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