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公开(公告)号：US20210242939A1
公开(公告)日：2021-08-05
申请号：US17157544
申请日：2021-01-25
Applicant: COM DEV LTD.
Inventor： Thomas Ducellier , Sheng Hai Zheng , Brian MacKay
IPC: H04B10/118 , H04B7/185 , G02B23/02
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.
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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
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.
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23.发明授权公开(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.
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.
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公开(公告)号：US20040113714A1
公开(公告)日：2004-06-17
申请号：US10319650
申请日：2002-12-16
Applicant: Com Dev Ltd.
Inventor： Regina Kwiatkowski , Mihai Vladimirescu , Terence J. Menezes
IPC: H01P001/10
CPC classification number: H01P1/125 , H01H1/06 , H01H2001/0005
Abstract: A switch contact for use in a microwave switch. The contact comprises a probe contact member having a first contact region with a first surface, and a reed contact member having a second contact region with a second surface. The second surface is non-conformal with respect to the first surface for providing an incomplete mechanical contact when the contact members are in contact.
Abstract translation: 用于微波开关的开关触点。 触点包括具有与第一表面的第一接触区域的探针接触构件和具有与第二表面的第二接触区域的舌簧接触构件。 当接触构件接触时，第二表面相对于第一表面是不共形的，用于提供不完全的机械接触。
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公开(公告)号：US20230093006A1
公开(公告)日：2023-03-23
申请号：US17478627
申请日：2021-09-17
Applicant: COM DEV Ltd.
Inventor： Alan Scott , Hugh Podmore
IPC: H04B10/25 , H04B10/50 , H04B10/294 , H04J14/02
Abstract: Various embodiments are disclosed herein with generally relate to an optical communication system using a photonic lantern. In at least one embodiment, the optical system comprises: an optical transmitter coupled to a signal transmitting path; an optical receiver coupled to a signal receiving path; a photonic lantern, the photonic lantern extending between a first open end and a second open end, the first end comprising an opening to a single multi-mode fiber, and the second end comprising a plurality of single mode fibers that are adiabatically coupled to the multi-mode fiber, the plurality of single-mode fibers includes a single-mode fiber adapted to carry a fundamental optical mode and the remaining single-mode fibers adapted to carry higher-order optical modes, wherein, the single-mode fiber is coupled to the optical transmitting path, the remaining single-mode fibers are coupled to the optical receiving path.
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Patent Agency Ranking
公开(公告)号：US11567264B2
公开(公告)日：2023-01-31
申请号：US17243359
申请日：2021-04-28
Applicant: COM DEV LTD.
Inventor： Thomas Ducellier
IPC: G02B6/293 , H04B10/40 , H04B10/118 , H04B10/112
Abstract: An optical communication system that includes terminals that operate with different, widely separated wavelengths in which a terminal in the system may be configured to function in both a first operational mode and in a second operational mode. For example, a terminal according to the techniques of this disclosure may communicate with full duplex communication by transmitting a first optical wavelength and receiving a second optical wavelength while in the first operational mode. The same terminal may be reconfigured to transmit the second optical wavelength and receive the first optical wavelength while in the second operational mode. In some examples, the terminal may be located in a spacecraft, such as an orbiting satellite or other vehicle, and may communicate with other terminals such as airborne terminals, terminals located at ground station on the Earth's surface, or with terminals located in other spacecraft.
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公开(公告)号：US20210263293A1
公开(公告)日：2021-08-26
申请号：US16881338
申请日：2020-05-22
Applicant: COM DEV Ltd.
Inventor： Thomas Ducellier , Alexander Beaton , Sheng Hai Zheng
Abstract: An optical system includes a plurality of internal apertures, a plurality of external optical assemblies and a telescope assembly positioned between the plurality of internal apertures and the plurality of external optical assemblies. Each internal aperture is operable to receive a corresponding aperture-specific optical signal. Each external optical assembly corresponds to one of the internal apertures, and each external optical assembly is operable to direct the aperture-specific optical signal of the corresponding internal aperture in a corresponding external direction. The external direction for each external optical assembly is independently controllable and the telescope assembly defines a shared optical train arranged to direct the aperture-specific optical signals between each internal aperture and the corresponding external optical assembly.
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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
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.
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公开(公告)号：US20200049626A1
公开(公告)日：2020-02-13
申请号：US16100881
申请日：2018-08-10
Applicant: COM DEV LTD.
Inventor： Alan Scott
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.
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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.
Inventor： Li Zhu , Ming Yu , Raafat R. Mansour
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.
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