| 摘要 |
<p>In a system for coupling several signals, each signal consisting of a band of high frequencies, comprised e.g. between some hundreds of MHz and some tens of GHz, said system including for each signal at least: a cavity pass-band filter (F1-F5), an ancillary circuit (C1-C5) for controlling the signal status of said filter, coupling means (12, 23, 34, 45) between the filters, and output and input connectors (Tx1...Tx5;ANT;CR), each cavity is deprived of the zones near to the superior corners that do not significantly cooperate to the filter quality, with a major base body having a section of e.g. rectangular or quadrangular form, and a minor tapered body of substantially trapezoidal form; and the box (60) holding the ancillary circuits shows a width substantially equal to the width of the minor side of the trapezium top. <IMAGE></p> |
