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1. 发明公开

EP4258572A1 OPTICAL COMMUNICATION SYSTEM USING A PHOTONIC LANTERN FOR FINE POINT TRACKING 审中-实审
公开(公告)号：EP4258572A1
公开(公告)日：2023-10-11
申请号：EP23162864.5
申请日：2023-03-20
申请人： COM DEV Ltd.
发明人： SCOTT, Alan , PODMORE, Hugh , ZHENG, Sheng Hai
IPC分类号： H04B10/118 , H04B10/2581 , H04J14/04 , H04B10/112
摘要： An optical communication system using a photonic lantern for fine point tracking is disclosed. The optical communication system may comprise a photonic lantern, a signal processing unit including one or more fiber splitters to sample a fraction of a received signal in each single mode fiber of the photonic lantern, and one or more intensity sensors positioned in one arm of each fiber splitter, and used for monitoring fiber-specific intensity data associated with each of the single-mode fibers. The system may further include a fine pointing assembly and a controller for controlling a driver of the fine pointing assembly.

2. 发明公开

EP4092931A1 WAVELENGTH SEPARATED FINE STEERING ASSEMBLY 有权转让
公开(公告)号：EP4092931A1
公开(公告)日：2022-11-23
申请号：EP22167422.9
申请日：2022-04-08
申请人： COM DEV LTD.
发明人： DUCELLIER, Thomas
IPC分类号： H04B10/112 , H04B10/118
摘要： 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.

3. 发明公开

EP3979404A1 COAXIAL LOW-PASS FILTER 审中-实审转让
公开(公告)号：EP3979404A1
公开(公告)日：2022-04-06
申请号：EP21197234.4
申请日：2021-09-16
申请人： COM DEV LTD.
发明人： GOULOUEV, Rousslan , MCLAREN, Colin
IPC分类号： H01P1/202
摘要： 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.

4. 发明授权

EP1187247B1 A microwave resonator having an external temperature compensator 有权转让
标题翻译：微波与外部温度补偿器
公开(公告)号：EP1187247B1
公开(公告)日：2010-12-29
申请号：EP01120503.6
申请日：2001-08-28
申请人： COM DEV LTD.
发明人： Fitzpatrick, William , Yu, Ming , Smith, David , Sivadas, Apu
IPC分类号： H01P1/208 , H01P7/06
CPC分类号： H01P1/208

5. 发明授权

EP1052721B1 Corrugated waveguide filter having coupled resonator cavities 有权
标题翻译：具有耦合空腔谐振器折叠波导滤波器
公开(公告)号：EP1052721B1
公开(公告)日：2010-04-28
申请号：EP00109183.4
申请日：2000-05-08
申请人： COM DEV LTD.
发明人： Goulouev, Rousslan
IPC分类号： H01P1/211
CPC分类号： H01P1/211

6. 发明公开

EP1569295A1 Microwave switch housing assembly 有权转让
标题翻译： GehäusezusammenbaufürMikrowellenschalter
公开(公告)号：EP1569295A1
公开(公告)日：2005-08-31
申请号：EP05250946.0
申请日：2005-02-18
申请人： COM DEV LTD.
发明人： Gorovoy, Evgeni , Wiesel, Jeffrey M.
IPC分类号： H01P1/12
CPC分类号： H01P1/122
摘要： A microwave switch housing assembly for operation in a selected frequency range. The housing assembly includes a housing having ports, a rotor containing at least one waveguide passage, and power absorbing material positioned either in the housing or in the rotor. Ports are positioned within the housing it so that in a first position of the rotor, the waveguide passage connects the ports and in a second position of the rotor, the waveguide passage is unconnected to the ports. The power absorbing material is positioned adjacent to one end of said waveguide passage when said rotor is in said second position it absorbs electromagnetic energy in the frequency range and reduces the tendency of the isolation passage to act as a volume resonator when the rotor is in the second position.
摘要翻译：一种用于在选定频率范围内操作的微波开关壳体组件。壳体组件包括具有端口的壳体，包含至少一个波导通道的转子和定位在壳体中或转子中的功率吸收材料。端口定位在壳体内，使得在转子的第一位置中，波导通道连接端口，并且在转子的第二位置中，波导通道不与端口连接。当所述转子处于所述第二位置时，所述功率吸收材料邻近所述波导通道的一端定位，所述第二位置吸收频率范围内的电磁能量，并且当所述转子处于所述第二位置时，所述功率吸收材料减小所述隔离通道作为体积谐振器的趋势第二名

7. 发明公开

EP1376748A1 Phase stable waveguide assembly 有权转让
标题翻译： Hohlleiteranordnung mit稳定阶段
公开(公告)号：EP1376748A1
公开(公告)日：2004-01-02
申请号：EP03253891.0
申请日：2003-06-19
申请人： COM DEV LTD.
发明人： Thomson, R Glen , Yu, Ming
IPC分类号： H01P3/12
CPC分类号： H01P3/12 , H01P1/2138
摘要： A waveguide assembly for operation over a range of temperatures includes a waveguide body and a plurality of restraining strips coupled to the waveguide body. The waveguide body includes a pre-curved narrow sidewall of material having a first coefficient of thermal expansion (CTE). The restraining strips are coupled to the waveguide body at first and second lateral points on either side of the pre-curved narrow sidewall laterally and are spaced apart along the length of the waveguide body, and are made from a material having a second CTE much less than the first CTE. Thus, when the temperature of the waveguide assembly changes, the restraining strips maintain a substantially constant lateral distance between said first and second lateral points over the range of temperatures such that as the length of the waveguide varies with temperature, the curvature of the pre-curved narrow sidewall also changes, causing the effective large dimension of the waveguide assembly to vary such that the combination of said changes results in a constant phase length for said waveguide body.
摘要翻译：用于在一定温度范围内操作的波导组件包括波导体和耦合到波导体的多个约束条。波导体包括具有第一热膨胀系数（CTE）的材料的预弯曲窄侧壁。约束条在预弯曲的窄侧壁的侧面上的第一和第二横向点处在波导体上耦合，并且沿着波导体的长度间隔开，并且由具有第二CTE的材料制成比第一个CTE。因此，当波导组件的温度改变时，限制条在温度范围内在所述第一和第二横向点之间保持基本恒定的横向距离，使得随着波导的长度随着温度而变化，弯曲的窄侧壁也改变，导致波导组件的有效大尺寸变化，使得所述变化的组合导致所述波导体的恒定相位长度。

8. 发明公开

EP1187247A3 A microwave resonator having an external temperature compensator 有权转让
标题翻译：微波与外部温度补偿器
公开(公告)号：EP1187247A3
公开(公告)日：2003-07-09
申请号：EP01120503.6
申请日：2001-08-28
申请人： COM DEV LTD.
发明人： Fitzpatrick, William , Yu, Ming , Smith, David , Sivadas, Apu
IPC分类号： H01P1/208 , H01P7/06
CPC分类号： H01P1/208
摘要： An externally temperature-compensated microwave resonator comprises a microwave resonator and an external temperature compensator. The microwave resonator is a multi-cavity waveguide. The cavities are configured side-by-side and coupled through irises. The external temperature compensator is oriented and configured to effect a change in volume of the cavities when the resonator and compensator undergo a temperature gradient. The compensator deflects a wall portion of the resonator to accordingly counteract a change in volume of the cavity caused by a temperature gradient.

9. 发明授权

EP0780998B1 Intersatellite communication system with switching at subchannel level using bent-pipe architecture 失效
标题翻译：与子信道电路和弯管架构间的卫星通信系统
公开(公告)号：EP0780998B1
公开(公告)日：2003-04-09
申请号：EP96119806.6
申请日：1996-12-10
申请人： COM DEV LTD.
发明人： Peach, Robert , Beauchamp, Gary , O'Donovan, Val
IPC分类号： H04B7/185
CPC分类号： H04B7/18521

10. 发明公开

EP0905930A3 Multiple beam direct broadcast satellite system providing regional programming 无效
标题翻译：对于区域方案的传输直接接收多波束卫星广播系统
公开(公告)号：EP0905930A3
公开(公告)日：2003-01-15
申请号：EP98117378.4
申请日：1998-09-14
申请人： COM DEV LTD.
发明人： Lazaris-Brunner, Ken , Beauchamp, Gary , Tailor, Bharat
IPC分类号： H04H1/00 , H04B7/185 , H04B7/204
CPC分类号： H04H40/90
摘要： A multi-beam DBS satellite system capable of providing spectrally efficient regional programming is disclosed. The inventive system includes at least one DBS satellite having a repeater connected between multiple uplink antennas and multiple downlink antennas. The repeater has a switching processor and a formatting processor. The switching processor includes circuitry for filtering individual channels of information from the uplink frequency division multiplexed (FDM) beams received at the uplink antennas, and also includes circuitry for switching the channels of information to form a set of switched channels. These switched channels are then combined and routed to the formatting processor. The formatting processor converts the switched FDM information into a combined digital TDM signal that preferably corresponds to the DVB standard. Using this repeater, the present invention is capable of linking different geographical sources of programming information to multiple downlink beams in a flexible and spectrally efficient manner for direct transmission to home receivers.

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