一、前言在电子战系统中,往往要求将天线接收到的、复盖几个倍频程的宽带信号分隔成两个或多个波段,分别送到不同的接收机进行处理。这就需要采用双工器或多工器来进行分隔。早在60年代后期,国外就对于这种双工器理论进行了比较系统的研究。即采用单终端原型或缩减双终端原型来进行综合,设计高通——低通或带阻——带通滤波器相并联(或串联)构成互补双工器。两滤波器的输入导纳(或阻 I. INTRODUCTION In EW systems, it is often required to divide the broadband signals received by the antenna into several octaves to separate them into two or more bands and send them to different receivers for processing. This requires the use of duplexers or multiplexers to separate. As early as the late 1960s, foreign countries conducted a systematic study on this theory of duplexers. The use of single-ended prototype or reduced dual-terminal prototype to synthesize, design Qualcomm - low-pass or band-stop - bandpass filter in parallel (or series) constitute a complementary duplexer. The two admittance admittance (or resistance