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1. 发明授权

US4614920A Waveguide manifold coupled multiplexer with triple mode filters 失效
标题翻译：波导歧管耦合多路复用器与三模式滤波器
公开(公告)号：US4614920A
公开(公告)日：1986-09-30
申请号：US690741
申请日：1985-01-11
申请人： Robert S. K. Tong
发明人： Robert S. K. Tong
IPC分类号： H01P1/208 , H01P1/209 , H01P5/12
CPC分类号： H01P1/209 , H01P1/2082
摘要： A multiplexer has a plurality of bandpass filters coupled through E-plane or H-plane T-junctions to a waveguide manifold. Where the multiplexer has four channels and each filter is a six-pole filter, two triple mode cavities make up each filter. Where each filter is a five-pole filter, one triple cavity and one dual mode cavity makes up each filter. Two band edge channel filters are operated to produce an asymmetrical filter function response, thereby causing extra transmission zeros to be created and improving the selectivity of the filter out of the passband. The multiplexer is designed for use in satellite communication systems and can have a reduced volume and weight when compared to previous multiplexers without any sacrifice in electrical performance.
摘要翻译：多路复用器具有通过E平面或H平面T结耦合到波导歧管的多个带通滤波器。在多路复用器具有四个通道并且每个滤波器是六极滤波器的情况下，两个三模腔构成每个滤波器。在每个滤波器是五极滤波器的地方，一个三腔和一个双模腔构成每个滤波器。操作两个带边沿通道滤波器以产生不对称的滤波器功能响应，从而产生额外的传输零点，并提高滤波器的通带的选择性。多路复用器设计用于卫星通信系统，与以前的多路复用器相比可以减小体积和重量，而不牺牲电气性能。

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