MULTI-RESONATOR FILTERS
    1.
    发明申请

    公开(公告)号:US20210111704A1

    公开(公告)日:2021-04-15

    申请号:US16597481

    申请日:2019-10-09

    Applicant: COM DEV Ltd.

    Inventor: Zhifu Zhou Ming Yu

    Abstract: A multi-resonator filter has a signal input terminal, a signal output terminal, and a plurality of resonator components. The plurality of resonator components include an input resonator component coupled to the signal input terminal, an output resonator component coupled to the signal output terminal, and at least one intermediate resonator component coupled between the input resonator component and the output resonator component. The input resonator component, output resonator component and the at least one intermediate resonator component are arranged in a sequence to define a signal path between the signal input terminal and the signal output terminal. The at least one intermediate resonator component includes at least one multiple resonator component, where each multiple resonator component includes a pair of individual resonators coupled in parallel where each individual resonator in a given pair of individual resonators has the same resonant frequency.

    Multi-band bandpass filter
    2.
    发明授权

    公开(公告)号:US10205209B2

    公开(公告)日:2019-02-12

    申请号:US15343280

    申请日:2016-11-04

    Applicant: COM DEV Ltd.

    Abstract: A triple-band bandpass filter with at least one cavity resonator. Each cavity resonator has the same three orthogonal resonances modes corresponding to three unique resonance frequencies. The three unique resonance frequencies define the passbands of the filter. The filter has an input probe coupled to an input cavity resonator. The filter has an output probe coupled to an output cavity resonator. The input and output probes are shaped to concurrently couple signal waveforms in each of the resonance modes. Coupling probes that can be used as input or output probes are also provided. An inter-cavity coupling operable to concurrently transmit signal waveforms in each of the resonance modes is also provided. The inter-cavity coupling can be used to transmit signals between adjacent cavity resonators in the filter.

    Coaxial filter having first to fifth resonators, where the fourth resonator is an elongated resonator

    公开(公告)号:US10116026B2

    公开(公告)日:2018-10-30

    申请号:US15331080

    申请日:2016-10-21

    Applicant: COM DEV Ltd.

    Inventor: Qiang Shi Ming Yu

    Abstract: A microwave filter has a housing defining an inner cavity. A first resonator is positioned in a first portion of the inner cavity. A second resonator is positioned in a second portion of the inner cavity. A third resonator is positioned in a third portion of the inner cavity. The first resonator and the third resonator are cross-coupled via an iris. The second resonator is elongated and is coupled to the first resonator and the third resonator. The resulting microwave filter has a frequency response having a transmission zero in the lower stopband. A high-pass filter is realized without the use of a cross-coupling probe.

    Multi-resonator filters
    4.
    发明授权

    公开(公告)号:US11211676B2

    公开(公告)日:2021-12-28

    申请号:US16597481

    申请日:2019-10-09

    Applicant: COM DEV Ltd.

    Inventor: Zhifu Zhou Ming Yu

    Abstract: A multi-resonator filter has a signal input terminal, a signal output terminal, and a plurality of resonator components. The plurality of resonator components include an input resonator component coupled to the signal input terminal, an output resonator component coupled to the signal output terminal, and at least one intermediate resonator component coupled between the input resonator component and the output resonator component. The input resonator component, output resonator component and the at least one intermediate resonator component are arranged in a sequence to define a signal path between the signal input terminal and the signal output terminal. The at least one intermediate resonator component includes at least one multiple resonator component, where each multiple resonator component includes a pair of individual resonators coupled in parallel where each individual resonator in a given pair of individual resonators has the same resonant frequency.

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