Analysis and Improvement of Satellite-Ground Testing Technique for Wide Beam Shaped Antenna
In order to meet the requirements of long life,high reliability and service operation of Fengyun-3G satellite,the on-board data transmission antenna adopts a wide beam shape design with good communication performance and high coverage rate.But the test technology of wide beam shaped antenna is relatively complicated,which has potential influ-ence on the test quality.The necessity of the data transmission antenna design of Fengyun-3G satellite is expounded,and the satellite-ground link margin analysis is established.The simulation and test results of satellite-borne data transmission antenna are compared and analyzed,and the validity of the test results of antenna pattern is verified.The improved test technology of satellite-borne antenna and ground system is proposed to improve the accuracy and integrity of the test re-sults.The improvement of the corresponding technology can provide support for the comprehensive test verification tech-nology of the space radiation measurement benchmark satellite platform system with similar platform schemes.