Cavity filter
    2.
    发明授权

    公开(公告)号:US10790565B2

    公开(公告)日:2020-09-29

    申请号:US15749746

    申请日:2016-08-16

    Abstract: Provided is a cavity filter that is one of radio frequency filters. The cavity filter includes a printed circuit board (PCB) substrate including a micro band layer, metal layers for grounding, which are arranged on both surfaces of the PCB substrate, having the micro band layer interposed therebetween, a plurality of standard cavity modules which are arranged on the both surfaces of the PCB substrate, in each of which an open side surface is fixed and sealed onto the metal layer, and a plurality of coupling windows, in each of which a part of the metal layer for grounding is removed to expose a part of the PCB substrate.

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