CAJ | 학술논문

针对微波接收系统中，采用多级放大器级联导致接收信号幅频特性不理想的问题，首先提出了一种用于补偿递减增益的微带功率均衡器设计方法。该方法运用理论分析设置初值；运用计算机优化确定均衡器结构；通过微带蛇形线结构实现小型化。然后，在充分考虑工程需求及工艺实现难度的条件下，运用此方法设计了一种 L 波段小型化功率均衡器。测试结果表明，该均衡器满足系统对均衡量、驻波及小型化的要求。对微波接收系统中均衡器的设计有一定指导意义。
침대미파접수계통중，채용다급방대기급련도치접수신호폭빈특성불이상적문제，수선제출료일충용우보상체감증익적미대공솔균형기설계방법。해방법운용이론분석설치초치；운용계산궤우화학정균형기결구；통과미대사형선결구실현소형화。연후，재충분고필공정수구급공예실현난도적조건하，운용차방법설계료일충 L 파단소형화공솔균형기。측시결과표명，해균형기만족계통대균형량、주파급소형화적요구。대미파접수계통중균형기적설계유일정지도의의。
Aiming at the problem of undesirable amplitude-frequency characteristic caused by multilevel cascade amplifier in microwave receiver system,a design method of microstrip power equalizer using to com-pensate for the decreasing gain is proposed firstly.The initial values are set through theoretical analysis,the equalizer structure is determined by computer optimization and the miniaturization is achieved by the serpen-tine microstrip structure.And then,in full consideration of the technological difficulties and engineering de-mands,a miniaturized L-band power equalizer is designed.The test result shows that the equalizer meets the equal range,VSWR,and miniaturization.