Design of a phase synchronization T/R module for spaceborne InSAR systems
In order to enhance the phase precision of the spaceborne InSAR system's inter-satellite synchroni-zation signal so as to improve the satellite measure accuracy and simultaneously increase the satellite's in-orbit working time,so as to improve the satellite's imaging capability,the system has increasingly higher requirements for high-power transmission,low-noise reception and high efficiency of the phase synchronous T/R module,which is taken as the core component of the dual-satellite synchronous antenna.Based on MCM-C technology,this paper adopts electromechanical thermal integration design to propose a design method of high-efficiency phase synchronous transceiver module with high-power transmission,low-noise reception and high phase synchro-nization accuracy.The test results show that in the receiving state,the module receiving gain is about 36 dB,with the noise coefficient better than 2.2 dB;and that in the transmitting state,the saturated output power is higher than 35 W,with the efficiency about 37%.
万方数据
维普
