公开(公告)号：EP0854590A2

公开(公告)日：1998-07-22

申请号：EP97117417.2

申请日：1997-10-08

Applicant: COM DEV LTD.

Inventor： Lazaris-Brunner, Ken ,  Beauchamp, Gary ,  Tailor, Bharat

IPC: H04B7/185

CPC classification number: H04B7/18515 ,  Y02D70/446

Abstract: An analog processor for use with digital satellites is disclosed. The analog processor is connected between the receiving circuitry of the satellite and a pool of digital on-board processors, and segments the bandwidth of uplink RF beams into sub-bands that can be processed more readily with standard, low-risk, low-power digital processors. Using the present invention, the risk of employing a particular digital processor technology can be managed and optimized. The present invention also provides for the dynamic allocation and reallocation of the available on-board digital processing bandwidth based on the anticipated traffic pattern and changes in the traffic pattern. In addition, the present invention facilitates the use of standard and non-standard redundancy schemes at minimal hardware expense.

Abstract translation: 公开了一种用于数字卫星的模拟处理器。 模拟处理器连接在卫星的接收电路和数字板载处理器之间，并将上行链路RF波束的带宽分段为可以用标准的低风险低功耗更容易处理的子带 数位处理器 使用本发明，可以管理和优化采用特定数字处理器技术的风险。 本发明还提供了基于预期业务模式和业务模式变化的可用板上数字处理带宽的动态分配和重新分配。 此外，本发明有助于以最小的硬件成本使用标准和非标准的冗余方案。

公开(公告)号：EP0741432A3

公开(公告)日：1998-03-04

申请号：EP96303075.4

申请日：1996-05-01

Applicant: COM DEV LTD.

Inventor： Ye Shen

IPC: H01P3/08 ,  H01P7/08

CPC classification number: H01P3/085 ,  H01P3/081 ,  H01P7/082 ,  H01P7/084 ,  Y10S428/93 ,  Y10S505/701 ,  Y10S505/703 ,  Y10S505/866 ,  Y10T428/24926

Abstract: Microstrip/stripline transmission lines (16) have a plurality of strips (18, 20, 22 ..... 32) on a substrate (6) where the strips are separated by gaps (34). This arrangement results in a reduced maximum current density compared to previous transmission lines with the same power handling capability. The strips can have the same width or different widths. The gaps can have the same width or different widths. The transmission lines can be used in filters and resonators and can be made of high temperature superconductive materials.

Abstract translation: 微带/带状线传输线（16）的基板（6），其中所述条带通过间隙（34）上分离具有条带（18，20，22 ..... 32）的复数。 在减小的最大电流密度这种布置导致相比于具有相同的功率处理能力先前的传输线。 条带可以具有相同的宽度或不同的宽度。 该间隙可具有相同的宽度或不同的宽度。 传输线可以在滤波器和谐振器一起使用，并且可以由高温超导材料。

公开(公告)号：EP0754354A1

公开(公告)日：1997-01-22

申请号：EP95913831.0

申请日：1995-03-30

Applicant: COM DEV LTD.

Inventor： CAMERON, Richard J., 11 Lucas Road ,  TANG, Wai-Cheung ,  DOKAS, Van

IPC: H01P1

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：EP0741432A2

公开(公告)日：1996-11-06

申请号：EP96303075.4

申请日：1996-05-01

Applicant: COM DEV LTD.

Inventor： Ye Shen

IPC: H01P3/08 ,  H01P7/08

CPC classification number: H01P3/085 ,  H01P3/081 ,  H01P7/082 ,  H01P7/084 ,  Y10S428/93 ,  Y10S505/701 ,  Y10S505/703 ,  Y10S505/866 ,  Y10T428/24926

Abstract: Microstrip/stripline transmission lines (16) have a plurality of strips (18, 20, 22 ..... 32) on a substrate (6) where the strips are separated by gaps (34). This arrangement results in a reduced maximum current density compared to previous transmission lines with the same power handling capability. The strips can have the same width or different widths. The gaps can have the same width or different widths. The transmission lines can be used in filters and resonators and can be made of high temperature superconductive materials.

公开(公告)号：EP0720248A3

公开(公告)日：1996-08-07

申请号：EP95309491.9

申请日：1995-12-28

Applicant: COM DEV LTD.

Inventor： Mansour, Raafat R.

IPC: H01P1/203 ,  H01P3/08

CPC classification number: H01P3/081 ,  Y10S505/70 ,  Y10S505/701 ,  Y10S505/866

Abstract: The invention relates to a high power high temperature superconductive (HTS) circuit (2) for use in various microwave devices including filters, dielectric resonator filters, multiplexers, transmission lines, delay lines, hybrids and beam-forming networks. The circuit (2), for example a microstrip line, comprises an HTS film (4) on a substrate (6), beneath which is a ground plate (8). On top of each outer edge (12) of the HTS film is deposited a thin film (14) of gold or other highly conductive metal. The use of these films (14) in a part or parts of a microwave circuit reduces the current density in those parts compared to the level of current density if only HTS film (4) is used. This increases the power handling capability of the circuit (2).

Abstract translation: 本发明涉及用于包括滤波器，介质谐振器滤波器，多路复用器，传输线，延迟线，混合器和波束形成网络的各种微波器件的高功率高温超导（HTS）电路（2）。 电路（2），例如微带线，包括在基底（6）上的HTS膜（4），在其下面是接地板（8）。 在HTS膜的每个外边缘（12）的顶部上沉积金或其他高导电金属的薄膜（14）。 如果仅使用HTS膜（4），则与电流密度水平相比，在微波电路的一部分或多个部分中使用这些膜（14）降低了那些部分中的电流密度。 这增加了电路（2）的功率处理能力。

公开(公告)号：EP0707349A1

公开(公告)日：1996-04-17

申请号：EP95307300.4

申请日：1995-10-13

Applicant: COM DEV LTD.

Inventor： Hegmann, Frank A. ,  Moffat, Steven H. ,  Poulin, G. Darcy ,  Preston, John S.

IPC: H01L39/16 ,  H01P1/10

CPC classification number: H01L39/18 ,  H01P1/10

Abstract: A low insertion loss, wide bandwidth, microwave switch (1) has a superconducting transmission line (5) that can reversibly go from a superconducting state to a normal state by the application of a DC voltage. When in the normal state, the switch is "off" and microwave signals are attenuated. To reduce the voltage necessary to cause switching, the width of the transmission line is decreased. This decrease in voltage is accomplished in a controlled manner so that there are no spurious reflections produced on the line, resulting in a wide operating bandwidth. Previous microwave switches use other means to switch between superconducting and normal and suffer from disadvantages such as relatively slow switching time, complexity or narrow bandwidths as a result.

Abstract translation: 低插入损耗宽带宽微波开关（1）具有通过施加直流电压可逆地从超导状态转变为正常状态的超导传输线（5）。 当处于正常状态时，开关为“关”，微波信号衰减。 为了减少导致切换所需的电压，传输线的宽度减小。 电压的这种降低以受控的方式实现，使得在线路上不产生寄生反射，导致宽的工作带宽。 以前的微波开关使用其他方式在超导和正常之间切换，并且具有诸如相对较慢的开关时间，复杂性或窄带宽的缺点。

公开(公告)号：EP0451975B1

公开(公告)日：1996-02-28

申请号：EP91302472.5

申请日：1991-03-21

Applicant: COM DEV LTD.

Inventor： Tsoi, Pail Y.

IPC: H01P1/10 ,  H01H51/22

CPC classification number: H01P1/125 ,  H01H51/2263

公开(公告)号：EP0656670A2

公开(公告)日：1995-06-07

申请号：EP94308946.6

申请日：1994-12-02

Applicant: COM DEV LTD.

Inventor： Mansour, Raafat R. ,  Dokas, Van

IPC: H01P1/208

CPC classification number: H01P1/2084 ,  Y10S505/70 ,  Y10S505/866

Abstract: An improved design for microwave bandpass cavity filters wherein dielectric resonator elements are mounted in dielectric blocks (there can be more than one resonator element per dielectric block). The dielectric blocks are in turn fitted within the filter housing, and the open ends are covered by shorting plates which are maintained in contact with each resonator surface. The shorting plates may be coated with a superconductive material. The structure results in significant size reduction over prior art filters. In addition, the new design is of higher structural integrity and helps to maintain a consistent output over a wide range of temperatures. By carefully choosing the dielectric materials to insure uniform thermal expansion of the component parts, the filter output is stable over a wide range of temperatures. This allows the filters to be tuned while at cryogenic temperatures, then returned to room temperature for storage or shipping, and finally return to cryogenic temperatures for operating purposes. The filters can be constructed with various configurations and can be operated in single mode, dual-mode, triple-mode, etc.

公开(公告)号：EP0188367B1

公开(公告)日：1993-05-05

申请号：EP86300203.6

申请日：1986-01-14

Applicant: COM DEV LTD.

Inventor： Tang, Wai-Cheung ,  Siu, David ,  Beggs, Bruce Cameron ,  Sferrazza, Joseph

IPC: H01P1/208

CPC classification number: H01P1/2086

公开(公告)号：EP0361638A2

公开(公告)日：1990-04-04

申请号：EP89303710.1

申请日：1989-04-14

Applicant: COM DEV LTD.

Inventor： Engel, Klaus Gunter

IPC: H01H51/22 ,  H01P1/12

CPC classification number: H01H51/2209

Abstract: A microwave switch that is an switch or a C-switch or the like has an electromagnetic actuator and a plurality of armatures (151,152,153,154). The armatures move simultaneously in a linear path in response to the electromagnetic actuator. The actuator has one perman­ent magnet (142,143,144,145) for each aperture and the switch has at least one coil winding (116,117). When an electric current is passed through the winding, the armatures move into a closed or open position, as desired. The only moving parts in the switch are the armatures themselves. The switch does not contain any complex mechanical arrangement or return springs that have been found in previous stitches. The mass and volume of the switch as well as the number of moving parts is greatly reduced when compared to previous switches. This is very important when the switch is used in satellites.

Abstract translation: 作为开关或C开关等的微波开关具有电磁致动器和多个电枢（151,152,153,154）。 电枢响应于电磁致动器在线性路径中同时移动。 致动器具有用于每个孔的一个永磁体（142,143,144,145），并且开关具有至少一个线圈绕组（116,117）。 当电流通过绕组时，电枢根据需要移动到闭合或打开位置。 开关中唯一的移动部件是电枢本身。 开关不包含在以前的缝合中发现的任何复杂的机械布置或复位弹簧。 与以前的开关相比，开关的质量和体积以及运动部件的数量大大减少。 这在开关用于卫星时非常重要。