Abstract: The present invention relates to a filter and a method of manufacturing the same, the filter including an RF connector configured to have a predetermined electrical signal line, a filter body having at least one impedance matching space in which the RF connector is installed, a relevant PCB on which one end of the RF connector is fixedly mounted, the relevant PCB coupled to be in close contact with one side surface of the filter body, and an annular gasket interposed between one side surface of the filter body and the relevant PCB to block a signal leak, in which a concave-convex portion is processed on a surface of one side surface of the filter body to which the annular gasket is attached to increase an attachment area, thereby providing an advantage of improving a bonding force of an attachment portion to which the gasket is attached.

Abstract: The present invention relates to a cavity filter and a method of manufacturing the same, and particularly, to a cavity filter including one side cavity and the other side cavity required to have capacitive cross-coupling design, resonant bars respectively provided at centers of one side cavity and the other side cavity, and a vertical post for a notch extending from any one of the resonant bars and extending in a vertical direction in an inner wall that is a boundary between one side cavity and the other side cavity, in which the resonant bar, which is connected to the vertical post for a notch among the resonant bars, is integrated with the vertical post for a notch, thereby providing an advantage of easily manufacturing the cavity filter and easily performing capacitive cross-coupling design.