FILTER ASSEMBLIES, TUNING ELEMENTS AND METHOD OF TUNING A FILTER

    公开(公告)号:US20200076033A1

    公开(公告)日:2020-03-05

    申请号:US16674240

    申请日:2019-11-05

    Abstract: The present invention provides filter assemblies, tuning elements and a method of tuning a filter. A filter assembly includes a housing having a top cover, a bottom cover and at least one sidewall, the top cover, the bottom cover and the at least one sidewall defining an internal cavity, the housing configured to receive first through third radio frequency (“RF”) transmission lines; a top metal sheet mounted within the internal cavity that has a plurality of openings that form a first hole pattern; and a bottom metal sheet mounted within the internal cavity that has a plurality of openings that form a second hole pattern. The top and bottom metal sheets are vertically spaced-apart from each other in a vertically stacked relationship within the internal cavity. The top metal sheet and the bottom metal sheet each include at least one resonator.

    Filter assemblies, tuning elements and method of tuning a filter

    公开(公告)号:US10050323B2

    公开(公告)日:2018-08-14

    申请号:US15349559

    申请日:2016-11-11

    Abstract: The present invention provides filter assemblies, tuning elements and a method of tuning a filter. A filter assembly includes a housing having a top cover, a bottom cover and at least one sidewall, the top cover, the bottom cover and the at least one sidewall defining an internal cavity, the housing configured to receive first through third radio frequency (“RF”) transmission lines; a top metal sheet mounted within the internal cavity that has a plurality of openings that form a first hole pattern; and a bottom metal sheet mounted within the internal cavity that has a plurality of openings that form a second hole pattern. The top and bottom metal sheets are vertically spaced-apart from each other in a vertically stacked relationship within the internal cavity. The top metal sheet and the bottom metal sheet each include at least one resonator.

    FILTERS HAVING A MOVABLE RADIO FREQUENCY TRANSMISSION LINE

    公开(公告)号:US20220069426A1

    公开(公告)日:2022-03-03

    申请号:US17341578

    申请日:2021-06-08

    Abstract: Filter devices that include a movable radio frequency (RF) transmission line are provided. A filter device that includes a movable RF transmission line also includes a plurality of resonators. The movable RF transmission line is configured to move between a first position and a second position relative to the resonators. Electromagnetic coupling between the movable RF transmission line and the resonators is reduced at the second position relative to the first position. Related methods of operating filter devices are also provided.

    FILTERS INCLUDING BANDPASS FILTER TRANSMISSION LINES

    公开(公告)号:US20220294483A1

    公开(公告)日:2022-09-15

    申请号:US17690182

    申请日:2022-03-09

    Abstract: Filters include a housing having an input port and an output port and a plurality of resonant cavities within the housing. Each resonant cavity may include a respective notch resonator. The filter may further include a bandpass filter that includes a plurality of bandpass resonators, the bandpass filter extending between the input port and the output port. The bandpass filter may replace a transmission line that is included in conventional filters.

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