公开(公告)号：US20040119552A1

公开(公告)日：2004-06-24

申请号：US10323895

申请日：2002-12-20

Applicant: Com Dev Ltd.

Inventor： Gordon Thomas Wray

IPC: H01P001/26 ,  H01P001/23

CPC classification number: H01P1/26 ,  H01P1/22

Abstract: A device for absorbing at least a portion electromagnetic energy that is provided by a transmission line and transferring the resulting heat generated by absorption to a heat sink. The device has a housing in communication with the transmission line for receiving the electromagnetic energy. The housing also provides at least a portion of an internal transmission line for confining and guiding the electromagnetic energy within the device. The housing is also in communication with the heat sink for transferring the resulting heat thereto. The device also has an absorber that is in communication with the housing for receiving the electromagnetic energy, absorbing at least a portion of the electromagnetic energy and providing resulting heat to the housing. The absorber comprises ferrite.

Abstract translation: 用于吸收由传输线提供的至少一部分电磁能量并将由吸收产生的所产生的热量传递到散热器的装置。 该装置具有与用于接收电磁能的传输线连通的壳体。 壳体还提供用于限制和引导装置内的电磁能量的内部传输线的至少一部分。 壳体还与散热器连通，用于将所产生的热量传递给散热器。 该装置还具有与壳体连通的吸收器，用于接收电磁能量，吸收至少一部分电磁能并向壳体提供所产生的热量。 吸收体包含铁素体。

公开(公告)号：US20040108920A1

公开(公告)日：2004-06-10

申请号：US10314352

申请日：2002-12-09

Applicant: Com Dev Ltd.

Inventor： Ming Yu ,  Van Dokas ,  Wai-Cheung Tang

IPC: H01P001/205

CPC classification number: H01P1/2053 ,  H01P1/20

Abstract: The invention provides a method and apparatus for an adaptively predistortion filter which has a transfer function that satisfies performance criteria specified for at least one property of the filter. The transfer function is obtained by adaptively predistorting the transfer function poles to meet the performance criteria such that at least one of the poles is shifted by a unique amount.

Abstract translation: 本发明提供了一种用于自适应预失真滤波器的方法和装置，其具有满足为滤波器的至少一个特性规定的性能标准的传递函数。 通过自适应地预失真传递函数极以满足性能标准获得传递函数，使得至少一个极被偏移独特的量。

公开(公告)号：US20040108215A1

公开(公告)日：2004-06-10

申请号：US10407455

申请日：2003-04-07

Applicant: Com Dev Ltd.

Inventor： James Jacob Donaldson ,  Bruce William Clark

IPC: C25D005/02 ,  C25D017/00

CPC classification number: C25D5/02 ,  C25D7/04 ,  C25D17/10

Abstract: An electroplating anode assembly and method for electroplating the plating area of a work-piece. The assembly includes a conductive element and a helical insulating coil. The conductive element can either be a straight conductive wire or a helically coiled conductive wire. The insulating coil is substantially equal in length to the conductive element and positioned around the conductive element for preventing the conductive element from contacting the plating area of the work-piece. The insulating coil extends continuously along the length of the entire electroplating portion of the conductive element. The anode assembly can be used to achieve uniform and adequate electroplating surfaces within recessed and enclosed plating areas of work-pieces that are conventionally difficult to electroplate due to its ability to be readily manipulated into various shapes. Further, anode assembly can be readily repositioned during the course of electroplating to further reduce the instance of localized areas of thick/thin deposition.

Abstract translation: 一种用于电镀工件电镀区域的电镀阳极组件和方法。 组件包括导电元件和螺旋绝缘线圈。 导电元件可以是直线导线或螺旋线圈导电线。 绝缘线圈的长度与导电元件基本相同，并且位于导电元件周围，以防止导电元件接触工件的电镀区域。 绝缘线圈沿着导电元件的整个电镀部分的长度连续延伸。 阳极组件可用于在通常难以电镀的工件的凹陷和封闭的电镀区域内实现均匀且充分的电镀表面，因为其能够容易地操纵成各种形状。 此外，阳极组件可以在电镀过程中容易地重新定位，以进一步减少厚/薄沉积的局部区域的实例。

公开(公告)号：US11128373B1

公开(公告)日：2021-09-21

申请号：US16945112

申请日：2020-07-31

Applicant: COM DEV LTD.

Inventor： Hugh Podmore ,  Alan Scott ,  Thomas Ducellier

IPC: H04B10/00 ,  H04B10/112 ,  H04B10/516 ,  H04B10/564 ,  H04J14/00

Abstract: Various embodiments for a system and method for a range-enhanced high-speed free-space optical communication are described herein. Generally, the optical communication system may include a first modulator, a second modulator and an average-power limited optical amplifier. The first modulator may receive an input optical signal and generate a modulated optical signal. The second modulator may receive the modulated signal and may be operable to turn-off a select number of pulses in each modulated pulse frame of the modulated signal to generate a low-duty cycle modulated signal. The average-power limited optical amplifier may then generate an amplified modulated signal from the low-duty cycle signal, wherein the amplified modulated signal comprises a plurality of amplified pulse frames with each amplified pulse frame defining an amplified version of a corresponding each low-duty cycle pulse frame.

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.

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.

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

IPC: H01P1/205 ,  H01P1/202 ,  H01P1/207

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.

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。

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.

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.