Research on Ground Station Satellite Communication Anti-interference Auxiliary Array Feed Antenna
The satellite communication signal is weak,and its downlink is vulnerable to interference from earth high-power electronic equipment.Based on the principle of beam forming and the working scenario of satellite communication earth station,this paper proposes an optimal auxiliary antenna gain analysis method.For the satellite communication earth station based on Cassegrain ring focus dual reflector antenna,a 7-element array feed design scheme is proposed to achieve the main lobe anti-interference per-formance.The simulation results show that when the interference deviates from the main beam by 1°,the cancellation ratio of 33dB can be achieved,and the SNR loss is less than 1.5dB.The research in this paper can provide reference for the theoretical analysis and engineering implementation of the main lobe anti-interference of satellite communication earth stations.
satellite communication earth stationanti-interferenceauxiliary antennaarray feedbeam forming
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