摘要
本文介绍在1GHz集成化、积木化通信系统中采用定向滤波式双工器的原理和性能分析。推导了在该系统中传输的双极性多路增量移相信号的功率频谱公式,在这基础上,并借助T159可编程序计算器,提供一种确定该双工器主要指标的方法给出了根据所确定的指标而设计和研制的实验性双工器的结构图和选择性曲线。
This paper presents the principle and charaterisitic of a duplexer with directional filter used in 1GHz modulized communication system using MIC. A power spectrum equation of a double-polarity multiplex ⊿M PSK signal transmitted in this system is derived. Based upon this equation, this paper gives a method to determine the main specification of this kind of duplexer by the aid of TI 59 programmable calculator. Finally the structure diagram and selectivity curve of an experimental duplexer which was designed and developed according to those specifications are given.
