公开(公告)号：US20200373644A1

公开(公告)日：2020-11-26

申请号：US16671619

申请日：2019-11-01

Applicant: COM DEV Ltd.

Inventor： Rousslan Goulouev ,  Jianming Chang

IPC: H01P1/208 ,  H01P7/06

Abstract: A bandpass filter has a plurality of resonant cavities. The plurality of resonant cavities are arranged into a sequence of adjacent resonant cavities. Each resonant cavity is configured to define the same fundamental resonant frequency. The filter includes a plurality of coupling irises, with one of the coupling irises positioned between each pair of adjacent resonant cavities. Each resonant cavity includes a plurality of cavity sections. Each resonant cavity includes a capacitive iris positioned coupling the cavity sections to one another. The frequency of secondary resonance modes varies amongst the resonant cavities in the plurality of resonant cavities.

公开(公告)号：US20220109219A1

公开(公告)日：2022-04-07

申请号：US17062171

申请日：2020-10-02

Applicant: COM DEV Ltd.

Inventor： Rousslan Goulouev ,  Colin McLaren

IPC: H01P1/205

Abstract: Various embodiments for a coaxial low-pass filter are described herein. Generally, the coaxial low-pass filter is operable to generate a stopband by a controlled generation of transmission zeroes within a stopband frequency range. The coaxial filter includes a plurality of cavity junctions, each of the plurality of cavity junctions operable to generate at least one corresponding cavity-specific transmission zero through a dual-mode coupling of a transverse electromagnetic and a transverse magnetic resonant mode, the at least one cavity-specific transmission zero being generated at at least one corresponding frequency located within the stopband frequency range, wherein for each cavity junction, the location of the cavity-specific frequency is adjusted by adjusting at least one property of the cavity junction, wherein a scattering of the locations of each of the cavity-specific transmission zeroes, generated by each of the plurality of cavity junctions, generates the stopband at the desired frequency range.

公开(公告)号：US11031664B2

公开(公告)日：2021-06-08

申请号：US16671619

申请日：2019-11-01

Applicant: COM DEV Ltd.

Inventor： Rousslan Goulouev ,  Jianming Chang

IPC: H01P1/208 ,  H01P7/06

Abstract: A bandpass filter has a plurality of resonant cavities. The plurality of resonant cavities are arranged into a sequence of adjacent resonant cavities. Each resonant cavity is configured to define the same fundamental resonant frequency. The filter includes a plurality of coupling irises, with one of the coupling irises positioned between each pair of adjacent resonant cavities. Each resonant cavity includes a plurality of cavity sections. Each resonant cavity includes a capacitive iris positioned coupling the cavity sections to one another. The frequency of secondary resonance modes varies amongst the resonant cavities in the plurality of resonant cavities.