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    Adjustable coupling arrangement for aperture coupled cavity filters
    1.
    发明授权
    Adjustable coupling arrangement for aperture coupled cavity filters 有权
    孔耦合腔滤波器的可调耦合装置

    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。

    WAVEGUIDE DIRECTIONAL FILTER
    2.
    发明公开
    WAVEGUIDE DIRECTIONAL FILTER 有权
    波导方向滤波器

    公开(公告)号：EP1157439A4

    公开(公告)日：2003-02-12

    申请号：EP99960708

    申请日：1999-12-06

    Applicant: CIT ALCATEL

    Inventor： BROAD GRAHAM ,  MCDONALD NO L ,  WILLIAMS CHARLES

    IPC: H01P1/213 ,  H01P1/208 ,  H01P7/06

    CPC classification number: H01P1/2138

    Abstract: A waveguide directional filter is described for combining multiple high power UHF television broadcasting transmitters on to a common antenna. The filter arrangement comprises an input waveguide (1) and an output waveguide (2). The waveguides are rectangular having broad walls (3) joined by narrow walls (4) whose width/height ratio is approximately 4:1. The two waveguides are connected by at least one direct-coupled cavity resonator (5). Coupling between the cavity and each waveguide is obtained by a respective characteristic aperture (7, 7a) in the form of a rectangle whose four sides have inwardly extending hemicycle sectors (8, 9, 10 and 11).

    WAVEGUIDE DIRECTIONAL FILTER
    6.
    发明专利
    WAVEGUIDE DIRECTIONAL FILTER 未知

    公开(公告)号：CA2352875A1

    公开(公告)日：2000-06-15

    申请号：CA2352875

    申请日：1999-12-06

    Applicant: CIT ALCATEL

    Inventor： BROAD GRAHAM ,  MCDONALD NOEL ,  WILLIAMS CHARLES

    IPC: H01P1/213 ,  H01P1/208

    Abstract: A waveguide directional filter is described for combining multiple high powe r UHF television broadcasting transmitters on to a common antenna. The filter arrangement comprises an input waveguide (1) and an output waveguide (2). Th e waveguides are rectangular having broad walls (3) joined by narrow walls (4) whose width/height ratio is approximately 4:1. The two waveguides are connected by at least one direct-coupled cavity resonator (5). Coupling between the cavity and each waveguide is obtained by a respective characteristic aperture (7, 7a) in the form of a rectangle whose four sides have inwardly extending hemicycle sectors (8, 9, 10 and 11).

    8.
    发明专利
    未知

    公开(公告)号：ES2216603T3

    公开(公告)日：2004-10-16

    申请号：ES99960708

    申请日：1999-12-06

    Applicant: CIT ALCATEL

    Inventor： BROAD GRAHAM ,  MCDONALD NO L ,  WILLIAMS CHARLES

    IPC: H01P1/213 ,  H01P1/208 ,  H01P7/06

    Abstract: A waveguide directional filter for combining multiple high power UHF television broadcasting transmitters on to a common antenna. The directional filter arrangement includes an input waveguide, an output waveguide and an interconnected cascade assembly of two or more cavity resonators. The input and output waveguides are each aperture-coupled to an end cavity resonator of the cascade assembly. The edges of each aperture incorporate inwardly extending curved protrusions of a characteristic shape. Alternatively or additionally, at least one pair of non-adjacent cavity resonators are coupled by at least one additional coupling element incorporating an external transmission line.

    10.
    发明专利
    未知

    公开(公告)号：AT260513T

    公开(公告)日：2004-03-15

    申请号：AT99960708

    申请日：1999-12-06

    Applicant: CIT ALCATEL

    Inventor： BROAD GRAHAM ,  MCDONALD NO L ,  WILLIAMS CHARLES

    IPC: H01P1/213 ,  H01P1/208 ,  H01P7/06

    Abstract: A waveguide directional filter for combining multiple high power UHF television broadcasting transmitters on to a common antenna. The directional filter arrangement includes an input waveguide, an output waveguide and an interconnected cascade assembly of two or more cavity resonators. The input and output waveguides are each aperture-coupled to an end cavity resonator of the cascade assembly. The edges of each aperture incorporate inwardly extending curved protrusions of a characteristic shape. Alternatively or additionally, at least one pair of non-adjacent cavity resonators are coupled by at least one additional coupling element incorporating an external transmission line.

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