Design and Implementation of a Q/V Band Triaxial Antenna System
According to the requirements of high-quality reception in the Q/V band of satellite signals,a Q/V band triaxial three-axis antenna system is developed which solves the technical problems of satellite signals transmit-receive sharing and automatic tracking in the high frequency band of the antenna system.The key techniques are proposed,including high-precision antenna structure optimization design,large dynamic and narrow beamwidth tracking-pointing control.A high-precision and low-cost Q/V band triaxial 4.5-meter reflector antenna prototypes is developed and tested,and the high quality reception and the high precision automatic tracking of Q/V band satellite signals are realized.The on-site electrical test and satellite tracking test results show the antenna gain,noise temperature,difference beam nulling depth,poining accuracy,and tracking accuracy of the prototype meet the design specifications.The tracking accuracy reaches 0.008 3 ° and is better than 1/10 times the half-power beam width.The proposed design method can provide reference for the development of high frequency antennas.
remote sensing satelliteQ/V band reflector antennaoverhead tracking
万方数据
维普
