| 摘要 |
<p>The present invention is directed to reducing the number of components required to minimize intermodulation distortion within the wide transmission frequency band used by a satellite communications repeater system. In particular, at least one TM010 mode cavity (32) is cascaded to a plurality of TE113 mode cavities (33) to form a narrow band-pass, wide band-stop filter for receiving and outputting channel signals to the multiplexer manifold (36) of a satellite repeater. The multiplexer filter thus constructed realizes the narrow band-pass response required in microwave communications, while eliminating the spurious resonance frequencies normally eliminated by additional filter components. In this manner, the size and weight considerations of the satellite system are improved without loss in performance.</p> |
