公开(公告)号：WO0141177A3

公开(公告)日：2001-12-13

申请号：PCT/CA0001423

申请日：2000-11-29

Applicant: COM DEV LTD

Inventor： ZYBURA ANDRZEJ ,  FRANCIS JAMES T ,  D SOUZA IAN A ,  KOBE BRADLEY A

IPC: C23C14/08 ,  C23C14/34 ,  C23C30/00 ,  H01J23/40 ,  H01J23/00 ,  H01J9/24 ,  H01J23/12

CPC classification number: C23C14/08

Abstract: A microwave device with a secondary yield coefficient of less than 1 is produced by applying a coating of yttrium-iron-garnet to the inner surface of the device by sputtering.

Abstract translation: 通过溅射将钇 - 铁 - 石榴石涂层施加到器件的内表面，产生次级屈服系数小于1的微波器件。

公开(公告)号：WO1995027317A2

公开(公告)日：1995-10-12

申请号：PCT/CA1995000177

申请日：1995-03-30

Applicant: COM DEV LTD.

Inventor： COM DEV LTD. ,  CAMERON, Richard, J. ,  TANG, Wai-Cheung ,  DOKAS, Van

IPC: H01P01/208

CPC classification number: H01P1/2084

Abstract: The invention relates to a single mode multi-cavity microwave filter that includes a housing formed with a plurality of walls which define at least two rows of side-by-side dielectric loaded cavities, wherein sequential cavities are coupled to one another via slots or probes in the walls therebetween and at least one pair of non-sequential adjacent cavities are coupled via a slot or probe. The coupling via the slots is defined mathematically as positive coupling. The probe is selectively configurable to provide positive or negative coupling relative to the sign of the slot coupling. Further, at least one non-adjacent, non-sequential pair of cavities is coupled via a second probe that may be configured to provide either positive or negative coupling relative to the sign of the slot coupling. The filter housing supports a plurality of adjustable fins which extend into the slots, one fin to each slot, to selectively adjust the size of the slot.

Abstract translation: 本发明涉及单模多腔微波过滤器，其包括形成有多个壁的壳体，所述多个壁限定了至少两排并排介质负载腔，其中顺序腔通过狭槽或探针彼此耦合 在其间的壁中，并且至少一对非顺序相邻的空腔经由槽或探针耦合。 通过槽的耦合在数学上定义为正耦合。 探针可选择性地配置为提供相对于槽耦合的符号的正或负耦合。 此外，至少一个不相邻的非顺序的空腔对经由第二探针耦合，第二探针可以被配置为相对于狭槽耦合的符号提供正或负耦合。 过滤器壳体支撑多个可调节的翅片，其延伸到槽中，一个翅片延伸到每个槽，以选择性地调节槽的尺寸。

公开(公告)号：WO9527317A3

公开(公告)日：1995-11-23

申请号：PCT/CA9500177

申请日：1995-03-30

Applicant: COM DEV LTD

Inventor： CAMERON RICHARD J ,  TANG WAI-CHEUNG ,  DOKAS VAN

IPC: H01P1/208

CPC classification number: H01P1/2084

Abstract: The invention relates to a single mode multi-cavity microwave filter that includes a housing formed with a plurality of walls which define at least two rows of side-by-side dielectric loaded cavities, wherein sequential cavities are coupled to one another via slots or probes in the walls therebetween and at least one pair of non-sequential adjacent cavities are coupled via a slot or probe. The coupling via the slots is defined mathematically as positive coupling. The probe is selectively configurable to provide positive or negative coupling relative to the sign of the slot coupling. Further, at least one non-adjacent, non-sequential pair of cavities is coupled via a second probe that may be configured to provide either positive or negative coupling relative to the sign of the slot coupling. The filter housing supports a plurality of adjustable fins which extend into the slots, one fin to each slot, to selectively adjust the size of the slot.

公开(公告)号：JP2002151920A

公开(公告)日：2002-05-24

申请号：JP2001260398

申请日：2001-08-29

Applicant: COM DEV LTD

Inventor： FITZPATRICK WILLIAM ,  YU MING ,  SMITH DAVID ,  SIVADAS APU

IPC: H01P7/06 ,  H01P1/208 ,  H01P1/30

Abstract: PROBLEM TO BE SOLVED: To provide a microwave resonator having an external temperature compensation device that is not susceptible to a thermal effect. SOLUTION: The microwave resonator with a cavity having a specific volume has an external temperature compensation structure. The temperature compensation structure is formed on a wall of the microwave resonator. When the microwave resonator and the temperature compensation structure are subjected to distortion caused by heat, the temperature compensation structure applies a restoring force to the wall of the microwave resonator so as to distort the wall oppositely against the distortion caused by the heat thereto maintain the specific volume of the cavity.

公开(公告)号：US11411647B2

公开(公告)日：2022-08-09

申请号：US17157544

申请日：2021-01-25

Applicant: COM DEV LTD.

Inventor： Thomas Ducellier ,  Sheng Hai Zheng ,  Brian MacKay

IPC: H04B10/00 ,  H04B10/118 ,  G02B23/02 ,  H04B7/185 ,  B64G1/10

Abstract: An apparatus for optical pointing is disclosed. The apparatus comprises a telescope, a transmission prism rotatably coupled to the telescope, and a rotatable mechanism operatively coupled to the telescope. The transmission prism is configured to rotate around a first rotation axis, and the rotatable mechanism is configured to rotate around a second rotation axis that is different than the first rotation axis.

公开(公告)号：US11215560B2

公开(公告)日：2022-01-04

申请号：US16100881

申请日：2018-08-10

Applicant: COM DEV LTD.

Inventor： Alan Scott

IPC: G01N21/64 ,  G01N21/25 ,  G01N21/62 ,  F21V8/00 ,  A61B5/00 ,  G01N33/50

Abstract: A portable imaging apparatus and system. A sample processing device has a reaction chamber configured to receive a sample and react the sample with a fluorescent compound that emits a specified wavelength of light when excited by light within an excitation band. An illumination source can be positioned to illuminate the reaction chamber when the sample processing device is positioned for imaging. A light guide can be positioned to face the reaction chamber and transfer the emitted light to an imaging detector. The light guide has a filter that blocks the wavelength of light from the illumination source and passes the fluorescent emitted light. The light guide unit defines an angular light acceptance range and is configured to constrain angular spreading of light.

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

IPC: H03H9/64

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.

公开(公告)号：US20040119551A1

公开(公告)日：2004-06-24

申请号：US10323825

申请日：2002-12-20

Applicant: Com Dev Ltd.

Inventor： Gordon Thomas Wray

IPC: H01P001/30

CPC classification number: H01P1/268

Abstract: A termination for absorbing electromagnetic energy provided by a transmission line and for transferring any resulting heat to a heat sink. The termination comprises a housing in communication with the transmission line for receiving the electromagnetic energy, and in communication with the heat sink for transferring the resulting heat thereto. The termination also includes a conductor disposed within the housing and cooperating with the housing for providing an internal transmission line structure for confining and guiding the electromagnetic energy within the termination. The termination also includes an absorber comprising a lossy dielectric. The absorber is disposed within the housing and is in communication with the internal transmission line for receiving the electromagnetic energy and absorbing the electromagnetic energy in accordance to an absorption profile of the termination. The absorber converts the absorbed energy into heat and is in communication with the housing for transferring the heat thereto.

Abstract translation: 用于吸收由传输线提供的电磁能并用于将任何产生的热量转移到散热器的终端。 终端包括与用于接收电磁能的传输线路连通的壳体，并且与散热器连通，用于将所产生的热量转移到其上。 终端还包括设置在壳体内并与壳体配合的导体，用于提供用于限制和引导终端内的电磁能的内部传输线结构。 终端还包括包含有损电介质的吸收体。 吸收器设置在壳体内并且与内部传输线路连通，用于接收电磁能量并根据终端的吸收曲线吸收电磁能量。 吸收器将吸收的能量转换成热量并且与壳体连通以传递热量。

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：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

IPC: H01P1/20 ,  H01P11/00 ,  H01P7/04 ,  H01P7/08 ,  H03H9/64

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.