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31. 发明公开

EP0736923A1 Dispersion compensation technique and apparatus for microwave filters 失效
标题翻译：一种用于补偿微波炉过滤该分散体和设备的方法
公开(公告)号：EP0736923A1
公开(公告)日：1996-10-09
申请号：EP96302376.7
申请日：1996-04-03
申请人： COM DEV LTD.
发明人： Cameron, Richard J.
IPC分类号： H01P1/20
CPC分类号： H01P1/20
摘要： A microwave filter (78) has a plurality of resonant cavities (1-10) with each cavity containing a dielectric resonator (44). There are self-equalizing probes (80, 82) located between some of the cavities (3 and 8, 2 and 9), and a self-equalizing aperture (84) located between other of the cavities (4 and 7). A circulator (50) is connected to an output (52) of the filter. The circulator has an input/output (86) which is connected to an equalizer (D). The equalizer contains a dielectric resonator (54) that is slightly different from the dielectric resonators (44) of the filter (78) to permit the equalizer to be tuned at a slightly different frequency from the filter. The equalizer (D) and self-equalizing probes (80, 82) and aperture (84) are capable of being operated to reduce a dispersive slope of the filter. The filter operates in a single mode, although dual mode filters are also described. The electrical performance of the filter is superior to prior art filters, particularly in the wideband versions because the dispersive slope is reduced.
摘要翻译：的微波过滤器（78）具有谐振腔（1-10）与每个腔包含电介质谐振器（44）的复数。有一些位于空腔之间的自均衡探针（80，82）（3,8，2和9），以及位于其他的腔之间的自平衡孔（84）（4和7）。循环器（50）在所述过滤器的输出端（52）被连接到。环行器具有被在均衡器（D），连接到输入/输出（86）所有。该均衡器包含一个介质谐振器（54）所做的是从过滤器（78），以允许在从所述过滤器略微不同的频率被调谐均衡器的介质谐振器（44）略有不同。均衡器（D）和自均衡探针（80，82）和孔（84）能够被操作以减少过滤器的色散斜率。因此，过滤器在一个单一的模式操作时，双模式虽然过滤器进行说明。所述过滤器的电性能是优于现有技术的过滤器，特别是在宽带版本，因为色散斜率减小。

32. 发明公开

EP0691702A2 Multi-mode temperature compensated filters and a method of constructing and compensating therefor 失效
标题翻译：温度补偿多模滤波器和其制备方法和补偿
公开(公告)号：EP0691702A2
公开(公告)日：1996-01-10
申请号：EP95304781.8
申请日：1995-07-07
申请人： COM DEV LTD.
发明人： Tang, Wai-Cheung
IPC分类号： H01P1/208
CPC分类号： H01P1/2082
摘要： Multi-mode waveguide filters are temperature compensated using dielectric material (8, 10) contained within a dual mode cavity (2) of a filter. The variation in operating frequency of the filter that would otherwise result from changes in temperature is substantially balanced by a change in operating frequency with temperature caused by a change in a dielectric constant of the dielectric material (8, 10) so that the operating frequency of the filter remains substantially constant with temperature. In a method of constructing and compensating a filter, the amount of dielectric material (8, 10) is selected so that the dielectric material does not resonate at the operating frequency of the cavity (2), the amount of dielectric material in the cavity being adjustable after each cavity is constructed. The cavity is operated with a fixed amount of dielectric material contained in the cavity for each mode and the change in operating frequency of the filter with temperature is determined. If the change in operating frequency of the filter is not at an acceptable level, the amount of dielectric material contained in the cavity for each mode is varied and the filter is operated through a range of temperatures to determine whether the change in operating frequency is then at an acceptable level. These steps are repeated until the change in operating frequency of the filter is at an acceptable level. When the change in operating frequency of the filter with temperature is at an acceptable level, these filters can be used in satellites without a temperature control system.

33. 发明公开

EP0240634A3 Modular contiguous channel multiplexer 失效
标题翻译：模块化连续通道多路复用器
公开(公告)号：EP0240634A3
公开(公告)日：1989-06-14
申请号：EP86304375.8
申请日：1986-06-09
申请人： COM DEV LTD.
发明人： Cameron, Richard J.
IPC分类号： H04J1/12 , H04J1/08
CPC分类号： H04J1/12
摘要： This invention relates to a modular contiguous channel multiplexer (46) having one or more modules (41, 42) that produce an asymmetric filter function that is combined with responses from other modules (44) to produce an overall symmetrical response. The multiplexer (46) can have channels (1, 2, 4) arranged in any order of relative frequencies and one or more channels (3, 5) can be added or removed from the multiplexer (46) without disturbing the operation of the existing or remaining channels (1, 2, 4). A method of constructing the multiplexer (46) involves choosing a downstream channel first, then choosing sequentially the channel immediately upstream from the channel last chosen and choosing filters (f, f1) of each channel to meet certain criteria. The filters (f, f1) of each channel are identical to one another but are not necessarily identical to filters (f, f1) in adjacent channels.

34. 发明公开

EP0199463A3 Electrical power dividers 失效
标题翻译：电力分配器
公开(公告)号：EP0199463A3
公开(公告)日：1988-08-10
申请号：EP86302117
申请日：1986-03-21
申请人： COM DEV LTD.
发明人： Raab, Anthony R.
IPC分类号： H01P05/12
CPC分类号： H01P5/12
摘要： A Beam-forming Network (BFN) includes a plurality of directional couplers (C,, C 2 , C 3 ) and phase shifters (P) which can interconnect both a transmitter and a receiver to the same group of radiating elements (1, 2, 3, 4) of an antenna even though the transmitter frequency band is different and well spaced from the receiver frequency band. This is accomplished, in accordance with the invention, by using directional couplers (C,, C 2 , C3) each of which has a variable response over a wide band of frequencies but which is designed so that its response over the transmitter frequency band is stable and its response over the receiver frequency band is also stable.

35. 发明公开

EP0276582A1 R-switch with transformers 有权
标题翻译： Drehschalter mit Anpassungstransformatoren。
公开(公告)号：EP0276582A1
公开(公告)日：1988-08-03
申请号：EP87311547.1
申请日：1987-12-31
申请人： COM DEV LTD.
发明人： Au-Yeung, Henry Yuk Man
IPC分类号： H01P1/12 , H01P5/02
CPC分类号： H01P1/122
摘要： A waveguide R-switch (44) has transformers in one or more of its three waveguide paths (34, 36, 38). The presence of the transformers allows the R-switch (44) to be constructed of a smaller size than previous R-switches with curved outer paths. This results in important weight and volume savings. Greater savings can be achieved when all three waveguide paths (34, 36, 38) contain transformers and ports (1, 2, 3, 4) of a housing (20) have dimensions that are identical to dimensions of the ends of the rotor waveguide paths (34, 36, 38), said dimensions being smaller than the interface waveguide dimensions (46) so that a transformer from the waveguide paths is integrated into each of the housing ports (1, 2, 3, 4). In a conventional manner, the R-switch (44) has a rotor that can be made to rotate through positions within the housing (20).
摘要翻译：波导R开关（44）在其三个波导路径（34,36,38）中的一个或多个中具有变压器。变压器的存在允许R开关（44）由具有弯曲外部路径的先前的R开关的尺寸构成。这导致重要的重量和体积节省。当所有三个波导路径（34,36,38）包含变压器并且壳体（20）的端口（1,2,3,4））具有与转子波导的端部的尺寸相同的尺寸时，可以实现更大的节省路径（34,36,38），所述尺寸小于接口波导尺寸（46），使得来自波导路径的变压器被集成到每个壳体端口（1,2,3,4）中。以常规方式，R开关（44）具有能够使壳体（20）内的位置旋转的转子。

36. 发明公开

EP0188367A3 Triple mode dielectric loaded bandpass filters 失效
标题翻译：三重模式电介质负载滤波器
公开(公告)号：EP0188367A3
公开(公告)日：1988-07-06
申请号：EP86300203
申请日：1986-01-14
申请人： COM DEV LTD.
发明人： Tang, Wai-Cheung , Siu, David , Beggs, Bruce Cameron , Sferrazza, Joseph
IPC分类号： H01P01/208
CPC分类号： H01P1/2086
摘要： A triple mode dielectric loaded bandpass filter (28) has at least one cavity (30) resonating in three independent orthogonal modes. The triple mode cavity (30) can be mounted adjacent another cavity (32) which may be either a single, dual or triple mode cavity. Any reasonable number of cavities can be used as well as various arrangements of cavities. Inter-cavity coupling is achieved through an iris (34) having two separate apertures (36, 38) that together form a T-shape. The cavities are planar mounted. The fitter (28) is designed for use in the satellite communication industry and results in substantial savings in weight and size when compared to previous filters.

37. 发明公开

EP0240634A2 Modular contiguous channel multiplexer 失效
标题翻译： Modul-MehrfachkopplerfüraneinandergrenzendeFrequenzkanäle。
公开(公告)号：EP0240634A2
公开(公告)日：1987-10-14
申请号：EP86304375.8
申请日：1986-06-09
申请人： COM DEV LTD.
发明人： Cameron, Richard J.
IPC分类号： H04J1/12 , H04J1/08
CPC分类号： H04J1/12
摘要： This invention relates to a modular contiguous channel multiplexer (46) having one or more modules (41, 42) that produce an asymmetric filter function that is combined with responses from other modules (44) to produce an overall symmetrical response. The multiplexer (46) can have channels (1, 2, 4) arranged in any order of relative frequencies and one or more channels (3, 5) can be added or removed from the multiplexer (46) without disturbing the operation of the existing or remaining channels (1, 2, 4). A method of constructing the multiplexer (46) involves choosing a downstream channel first, then choosing sequentially the channel immediately upstream from the channel last chosen and choosing filters (f, f1) of each channel to meet certain criteria. The filters (f, f1) of each channel are identical to one another but are not necessarily identical to filters (f, f1) in adjacent channels.
摘要翻译：本发明涉及具有一个或多个模块（41,42）的模块化连续信道多路复用器（46），其产生与来自其他模块（44）的响应相结合以产生整体对称响应的非对称滤波器功能。复用器（46）可以具有以相对频率的任何顺序布置的通道（1,2,4），并且可以从多路复用器（46）添加或移除一个或多个通道（3,5），而不会干扰现有的或剩余通道（1,2,4）。构建多路复用器（46）的方法包括首先选择下游信道，然后从上一次选择的信道的上游依次选择信道，并选择每个信道的滤波器（f，f1）以满足特定标准。每个通道的滤波器（f，f1）彼此相同，但不一定与相邻通道中的滤波器（f，f1）相同。

38. 发明公开

EP3961939A1 OPTICAL APPARATUS 有权转让
公开(公告)号：EP3961939A1
公开(公告)日：2022-03-02
申请号：EP21192475.8
申请日：2021-08-20
申请人： COM DEV Ltd.
发明人： DUCELLIER, Thomas , SCOTT, Alan , ZHENG, Sheng Hai
IPC分类号： H04B10/118
摘要： 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.

39. 发明公开

EP3806236A1 MULTI-RESONATOR FILTERS 有权转让
公开(公告)号：EP3806236A1
公开(公告)日：2021-04-14
申请号：EP20198827.6
申请日：2020-09-28
申请人： COM DEV Ltd.
发明人： ZHOU, Zhifu , YU, Ming
IPC分类号： H01P1/20 , H01P11/00
摘要： 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.

40. 发明授权

EP3318855B1 INTEGRATED FOURIER TRANSFORM OPTICAL SPECTROMETER 有权转让
公开(公告)号：EP3318855B1
公开(公告)日：2020-04-01
申请号：EP17187351.6
申请日：2017-08-22
申请人： COM DEV Ltd.
发明人： SCOTT, Alan , PODMORE, Hugh
IPC分类号： G01J3/453 , G01J3/02

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