公开(公告)号：US6392509B2

公开(公告)日：2002-05-21

申请号：US72809000

申请日：2000-12-04

Applicant: CIT ALCATEL

Inventor： BROAD GRAHAM ,  BOWEY STEVEN

IPC: H01P1/208 ,  H01P1/20 ,  H01P1/205

CPC classification number: H01P1/208

Abstract: An adjustable coupling arrangement for aperture coupled cavity filters. According to the invention, in an electric wall (24) separating two cavities to be coupled in a bandpass filter, provide a cruciform iris (26) comprising a central aperture (27) having four slits (28,29,30, 31) extending outwardly therefrom. In each slit there is arranged a captive movable rectangular metal slug (36,37,38,39) whose position along the slit's length can be manipulated by a tool that engages the slug when the tool is introduced into a radial passageway (32,33,34 35) that connects the slit with an access hole in the filter's housing. When desired coupling parameters are achieved by manipulating each of the slugs to effectively change the electrical length of the slits, each slug is locked in position by a respective associated locking means actuated by the tool. Because a significant part of the tool is within a passageway during manipulation, the filter's characteristics are not disturbed by its presence.

Abstract translation: 用于孔耦合腔体滤波器的可调耦合装置。 根据本发明，在将两个待耦合在带通滤光器中的空腔分开的电壁（24）中，提供一个十字形虹膜（26），该十字形虹膜包括一个具有四个狭缝（28,29,30,31）的中心孔（27） 向外。 在每个狭缝中，布置有可移动的矩形金属块塞（36,37,38,39），其沿着狭缝长度的位置可以通过工具来操纵，当工具被引入径向通道（32,33 ，3435），其将狭缝与过滤器壳体中的进入孔连接。 当期望的耦合参数通过操纵每个s子以有效地改变狭缝的电长度来实现时，每个s lug被由工具致动的相应的相关联的锁定装置锁定在适当的位置上。 由于工具的重要部分在操作过程中在通道内，所以过滤器的特性不会因其存在而受到干扰。