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公开(公告)号：US10651809B2
公开(公告)日：2020-05-12
申请号：US15996128
申请日：2018-06-01
申请人： Astrium Limited
发明人： Martin Goss
摘要： An apparatus for controlling the gain and phase of an input signal input to a power amplifier comprises a gain control loop configured to control the gain of the input signal based on power levels of the input signal and an amplified signal output by the power amplifier, to obtain a predetermined gain of the amplified signal, and a phase control loop configured to obtain an error signal related to a phase difference between a first signal derived from the input and a second signal derived from the amplified signal, and control the phase based on the error signal, to obtain a predetermined phase of the amplified signal. The phase control loop delays the first signal such that the delayed first signal and the second signal used to obtain the error signal correspond to the same part of the input signal. The apparatus may be included in a satellite.
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公开(公告)号：US09854660B2
公开(公告)日：2017-12-26
申请号：US14410488
申请日：2013-06-18
发明人： Aaron Kombai Knoll
CPC分类号： H05H5/02 , F03H1/0037 , F03H1/0068 , H01J27/146 , H01J27/205
摘要： An ion accelerator includes: an inner magnet having a channel extending through it in an axial direction; an outer magnet extending around the inner magnet, the magnets having like polarities so as to produce a magnetic field having two locations of zero magnetic field strength. The locations are spaced apart in the axial direction; and an anode and a cathode are arranged to generate an electrical potential difference between the locations.
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公开(公告)号：US09705614B2
公开(公告)日：2017-07-11
申请号：US14130202
申请日：2012-06-25
申请人： Ian Morris
发明人： Ian Morris
CPC分类号： H04B17/40 , H04B17/0085
摘要： A test arrangement includes a multi-port test interface having a first waveguide coupled to a plurality of second waveguides. The first waveguide is arranged to propagate an input signal and each of the second waveguides is arranged to output the input signal, providing a plurality of test signals to be supplied to a communications apparatus. Such a test interface may also be used to output respective channel signals in a multiplexed signal received from a communications apparatus. The test interface permits the provision and/or monitoring of a large number of channel signals without separate respective connections to the communications apparatus. This may be particularly useful where tests are performed in a constrained space and/or where repeated access to the apparatus is impractical. The simultaneous provision of many channel signals may allow evaluation of co-channel interference.
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公开(公告)号：US09335478B2
公开(公告)日：2016-05-10
申请号：US14351727
申请日：2012-10-09
申请人： ASTRIUM LIMITED
发明人： Stephen Sweeney , Yaping Zhang
CPC分类号： G02B6/293 , G01J3/0205 , G01J3/0218 , G01J3/0259 , G02B6/29341
摘要： A structure for guiding electromagnetic radiation, including: a substrate; a waveguide provided on the substrate and having a first end for receiving electromagnetic radiation and a second end; and an anti-reflection region provided at the second end of the waveguide on the substrate, the length and the width of the anti-reflection region being optimized to suppress back reflection of radiation that reaches the second end.
摘要翻译： 一种用于引导电磁辐射的结构，包括：基板; 设置在所述基板上并具有用于接收电磁辐射的第一端和第二端的波导; 以及设置在基板上的波导的第二端处的抗反射区域，防反射区域的长度和宽度被优化以抑制到达第二端的辐射的反射。
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公开(公告)号：US20150124251A1
公开(公告)日：2015-05-07
申请号：US14351833
申请日：2012-10-09
申请人： ASTRIUM LIMITED
发明人： Stephen Sweeney , Yaping Zhang
CPC分类号： G02B6/29389 , G01J3/0205 , G01J3/26 , G01J3/42 , G02B5/22 , G02B6/29341
摘要： A device for detecting electromagnetic radiation comprises a waveguide and at least one resonator on a substrate, and a low-refractive index region between each resonator and the substrate. The low-refractive index region has a lower refractive index than a material of the resonator. The low-refractive index region may be annular, and may have a width corresponding to a width of a region in which electromagnetic radiation is concentrated in a whispering-gallery resonant mode. The low-refractive index region may be an air gap between the substrate and the resonator. The device may be a spectrometer for detecting a plurality of predetermined wavelengths of electromagnetic radiation.
摘要翻译： 用于检测电磁辐射的装置包括波导和基板上的至少一个谐振器，以及每个谐振器和基板之间的低折射率区域。 低折射率区域的折射率低于谐振器的材料。 低折射率区域可以是环形的，并且可以具有对应于电磁辐射集中在耳语 - 画廊谐振模式中的区域的宽度的宽度。 低折射率区域可以是衬底和谐振器之间的气隙。 该装置可以是用于检测多个预定波长的电磁辐射的光谱仪。
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公开(公告)号：US20140362861A1
公开(公告)日：2014-12-11
申请号：US14465331
申请日：2014-08-21
申请人： ASTRIUM LIMITED
IPC分类号： H04L12/861 , H04L12/741
CPC分类号： H04L49/9042 , H04L45/34 , H04L45/74 , H04L67/12 , H04L69/22
摘要： An apparatus for use in a SpaceWire-based network is configured to send and receive data packets, and process data included in a received data packet. A header of the received data packet is stored in a buffer whilst the data is being processed, a processed data packet including the stored header and the processed data is generated, and the processed data packet is transmitted. The header of the received data packet may be modified, and the modified header attached to the processed data to generate the processed data packet. When the data packet is received via a first port, the processed data packet may be transmitted via the first port, or may be transmitted via a second port.
摘要翻译： 在基于SpaceWire的网络中使用的装置被配置为发送和接收数据分组，并处理包括在接收的数据分组中的数据。 在处理数据的同时，接收到的数据分组的报头被存储在缓冲器中，生成包括存储的报头和经处理的数据的经处理的数据分组，并且处理的数据分组被发送。 接收到的数据分组的报头可以被修改，并且修改的报头附加到被处理的数据以生成经处理的数据分组。 当经由第一端口接收到数据分组时，经处理的数据分组可以经由第一端口传输，或者可以经由第二端口传送。
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7.发明授权Multi-band filter including a plurality of parallel filters each configured to provide a particular effective path length 有权多频带滤波器包括多个并行滤波器，每个滤波器被配置为提供特定的有效路径长度公开(公告)号：US08830013B2
公开(公告)日：2014-09-09
申请号：US12824807
申请日：2010-06-28
申请人： Mark Anthony Kunes
发明人： Mark Anthony Kunes
CPC分类号： H01P1/208 , H01P1/2138
摘要： A multi-band filter is disclosed which includes an input manifold; an output manifold; and a plurality of filters connected in parallel between the input manifold and output manifold. The filters have a first section proximal to the input manifold which is matched to the input manifold and a second section proximal to the output manifold which is matched to the output manifold.
摘要翻译： 公开了一种多带滤波器，其包括输入歧管; 输出歧管 以及在输入歧管和输出歧管之间并联连接的多个过滤器。 过滤器具有靠近输入歧管的第一部分，其与输入歧管相匹配，以及靠近输出歧管的与输出歧管相匹配的第二部分。
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公开(公告)号：US20140192939A1
公开(公告)日：2014-07-10
申请号：US14125050
申请日：2012-06-07
申请人： Robert Patrick Wallace Smart , Daniel Christopher Hollamby , Adrian Philip Baldwin , Iain David Cameron
发明人： Robert Patrick Wallace Smart , Daniel Christopher Hollamby , Adrian Philip Baldwin , Iain David Cameron
IPC分类号： H04L7/02
摘要： An apparatus for aligning non-synchronous input data streams received in the apparatus, the apparatus comprising an analogue to digital converter arrangement for digitising the data streams into a plurality of sequences of samples; and a synchronisation processing arrangement for generating alignment pulses for each sequence of the plurality of sequences of samples, for arranging each sequence of samples with respect to the alignment pulses for the sequence and for synchronisation the delivery of said plurality of sequences of samples to a common processor with respect to the respective alignment pulses. The synchronisation processing arrangement may comprise a processing chain for each antenna feed of said plurality of antenna feeds and each processing chain may comprise an alignment pulse generator for generating an alignment pulse for the sequence of samples corresponding to the processing chain. The input data streams may be received by a plurality of antenna feeds.
摘要翻译： 一种用于对准在装置中接收的非同步输入数据流的装置，该装置包括用于将数据流数字化为多个样本序列的模数转换器装置; 以及同步处理装置，用于产生所述多个样本序列中的每个序列的对准脉冲，用于相对于所述序列的对准脉冲布置每个样本序列，并且用于使所述多个样本序列的传送同步到共同的 处理器。 同步处理装置可以包括用于所述多个天线馈送的每个天线馈送的处理链，并且每个处理链可以包括对准脉冲发生器，用于产生对应于处理链的样本序列的对准脉冲。 输入数据流可以由多个天线馈送来接收。
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公开(公告)号：US08674893B2
公开(公告)日：2014-03-18
申请号：US12933285
申请日：2009-02-27
IPC分类号： H01Q19/195
CPC分类号： H01Q1/002 , H01Q1/1207 , H01Q1/288 , H01Q19/17 , H01Q25/007
摘要： An antenna feed assembly is provided which includes at least two elongate feed chains lying adjacent one another. Each feed chain is adapted to transmit or receive electromagnetic radiation between itself and the antenna along a longitudinal feed axis thereof via a transmit/receive element. The feed chains are held in fixed lateral relationship to one another by first and second mountings spaced apart axially of the feed chains. The transmit/receive elements extend axially from the first mounting towards the antenna and the second mounting is positioned on a side of the first mounting remote from the antenna. The first mounting has a lower coefficient of thermal expansion in the lateral direction than the second mounting whereby translational movement of each transmit/receive element in the lateral direction owing to temperature change of the assembly will be reduced.
摘要翻译： 提供了一种天线馈送组件，其包括彼此相邻的至少两个细长馈电链。 每个馈送链适于通过发射/接收元件沿着其纵向馈送轴线在其与天线之间发射或接收电磁辐射。 通过供给链的轴向隔开的第一和第二安装件，进料链彼此保持固定的侧向关系。 发射/接收元件从第一安装件朝向天线轴向延伸，并且第二安装件位于远离天线的第一安装件的一侧。 第一安装件在横向上的热膨胀系数比第二安装件低，由于组件的温度变化，每个发射/接收元件在横向上的平移运动将会降低。
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公开(公告)号：US08665175B2
公开(公告)日：2014-03-04
申请号：US10584407
申请日：2006-05-17
申请人： Paul Joseph Brooks
发明人： Paul Joseph Brooks
CPC分类号： B32B17/10018 , B32B27/36 , B64G1/54 , B64G1/58 , B64G1/66 , G02B5/281 , G02B5/282 , H01Q1/002 , H01Q1/28 , H01Q1/422 , Y10T428/261
摘要： A thermal control film for use in spacecraft having a multi-layer interference filter adapted to exhibit high reflectivity to solar radiation, low absorptivity across the microwave spectrum and high emissivity in the far infra-red. The film is free from metal and extends over the active face of an antenna carried by the spacecraft. Such a film exhibits the desired thermo-optical properties for a thermal control radiator surface and can be used over the active face of a communications or radar antenna without disrupting the RF signal.
摘要翻译： 一种用于航天器的热控膜，其具有适于对太阳辐射呈现高反射率的多层干涉滤光片，微波频谱上的低吸收率和远红外线中的高辐射率。 该电影没有金属，并延伸到由航天器携带的天线的主动面上。 这种膜对于热控散热器表面具有期望的热光学性能，并且可以在通信或雷达天线的有源面上使用，而不会中断RF信号。
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