在电路结构设计部分，主要讨论了采用集总参数传输零点滤波器实现天线双工器和采用PIN管实现天线开关的设计方法。
The circuit design part mainly introduces the duplexer design with lumped apices filter, and the antenna switch design with PIN diode.
项目范围可能包括用在微波收发器和天线间通道的波导管组合件和部件，比如双工器、滤波器和耦合器；
Project areas may include waveguide components subassemblies used in the RF path between a microwave transceiver the antenna, such as diplexers, filters couplers.
由于其优良的带阻、慢波等特性，它们被广泛地应用于滤波器、谐振器、定向耦合器、双工器和天线中。
Due to excellent stop band and slow wave characteristics, they are applied to filters, resonators, directional couplers, diplexers and antennas.
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