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1. 发明授权

US08280328B2 High speed frequency detector 有权
标题翻译：高速频率检测器
公开(公告)号：US08280328B2
公开(公告)日：2012-10-02
申请号：US12513621
申请日：2009-03-20
申请人： Adam Armitage , John Michael Cliss , Alan David Hart , Duncan Christopher Frederick Levett
发明人： Adam Armitage , John Michael Cliss , Alan David Hart , Duncan Christopher Frederick Levett
IPC分类号： H04B17/00
CPC分类号： H04B1/1027 , H04B1/7156
摘要： A sensor (10) for detecting an incident RF signal having a carrier frequency, and for estimating said carrier frequency, comprises a plurality of filters (70-73), each allowing passage of signals over a different band of frequencies from the band of frequencies over which passage of signals is allowed by the others of the plurality of filters (70-73), and a plurality of detectors (80-83). Each filter (70-73) is associated with at least one of the plurality of detectors (80-83), and said at least one detector (80-83) is arranged in use to generate an output signal if the incident RF signal results in a signal in the band of frequencies passed by the filter (70-73) with which the detector (80-83) is associated. Generation of the output signal by the detector (80-83) indicates in which of the frequency bands the incident RF signal has been detected. Between arrival of the incident RF signal at the sensor (10) and generation of the output signal indicating in which of the frequency bands the incident RF signal has been detected, there is a delay of not more than 1 microsecond.
摘要翻译：用于检测具有载波频率并用于估计所述载波频率的入射RF信号的传感器（10）包括多个滤波器（70-73），每个滤波器允许在不同的频带上的信号通过频带多个滤波器（70-73）中的其它信号允许信号的通过，以及多个检测器（80-83）。每个滤波器（70-73）与多个检测器（80-83）中的至少一个相关联，并且所述至少一个检测器（80-83）被布置成在使用中产生输出信号，如果入射的RF信号结果在与检测器（80-83）相关联的滤波器（70-73）通过的频带中的信号中。由检测器（80-83）产生输出信号指示在哪个频带中检测到入射的RF信号。在传感器（10）处的入射RF信号的到达和指示在哪个频带中检测到入射的RF信号的输出信号之后，存在不大于1微秒的延迟。

2. 发明申请

US20110053538A1 HIGH SPEED FREQUENCY DETECTOR 有权
标题翻译：高速频率检测器
公开(公告)号：US20110053538A1
公开(公告)日：2011-03-03
申请号：US12513621
申请日：2009-03-20
申请人： Adam Armitage , John Michael Cliss , Alan David Hart , Duncan Christopher Frederick Levett
发明人： Adam Armitage , John Michael Cliss , Alan David Hart , Duncan Christopher Frederick Levett
IPC分类号： H04B17/00
CPC分类号： H04B1/1027 , H04B1/7156
摘要： A sensor (10) for detecting an incident RF signal having a carrier frequency, and for estimating said carrier frequency, comprises a plurality of filters (70-73), each allowing passage of signals over a different band of frequencies from the band of frequencies over which passage of signals is allowed by the others of the plurality of filters (70-73), and a plurality of detectors (80-83). Each filter (70-73) is associated with at least one of the plurality of detectors (80-83), and said at least one detector (80-83) is arranged in use to generate an output signal if the incident RF signal results in a signal in the band of frequencies passed by the filter (70-73) with which the detector (80-83) is associated. Generation of the output signal by the detector (80-83) indicates in which of the frequency bands the incident RF signal has been detected. Between arrival of the incident RF signal at the sensor (10) and generation of the output signal indicating in which of the frequency bands the incident RF signal has been detected, there is a delay of not more than 1 microsecond.
摘要翻译：用于检测具有载波频率并用于估计所述载波频率的入射RF信号的传感器（10）包括多个滤波器（70-73），每个滤波器允许在不同的频带上的信号通过频带多个滤波器（70-73）中的其它信号允许信号的通过，以及多个检测器（80-83）。每个滤波器（70-73）与多个检测器（80-83）中的至少一个相关联，并且所述至少一个检测器（80-83）被布置成在使用中产生输出信号，如果入射的RF信号结果在与检测器（80-83）相关联的滤波器（70-73）通过的频带中的信号中。由检测器（80-83）产生输出信号指示在哪个频带中检测到入射的RF信号。在传感器（10）处的入射RF信号的到达和指示在哪个频带中检测到入射的RF信号的输出信号之后，存在不大于1微秒的延迟。

3. 发明申请

US20090027267A1 SCANNED ANTENNA SYSTEM 有权
标题翻译：扫描天线系统
公开(公告)号：US20090027267A1
公开(公告)日：2009-01-29
申请号：US12279494
申请日：2007-02-23
申请人： Christopher Ralph Carter , Bernard Paul Gilhespy , Alan David Hart , Adam Armitage
发明人： Christopher Ralph Carter , Bernard Paul Gilhespy , Alan David Hart , Adam Armitage
IPC分类号： H01Q3/26
CPC分类号： H01Q15/0066 , H01Q3/46 , H01Q15/008
摘要： The invention comprises a feed horn (10) illuminating a circular flat panel (12) formed from a high impedance surface structure. By controlling the resonant frequencies of the individual elements of the array, a controlled phase shift profile is applied across the surface of the panel to an incident phase front spherically spreading from the feed antenna so as to reflect that wavefront in a particular direction or impose a certain desired beam shape. The principles are reciprocal so a receiving system can also be achieved or indeed a simultaneous transmit and receive operation can be supported. The phase controlled reflecting plate advantageously performs focussing to the feed and beam scanning or beam shaping. This concept of feed to a phased reflector plate allows the power distribution to be implemented in free space. In addition, the active component at each array element affecting the resonant frequency is a single varactor tuning diode per element with negligible power dissipation since it operates in reverse bias or a MeMs switch network. A further embodiment is described comprising a transmissive panel with phase shifting elements implemented in MeMs technology coupled to each element of the array. Calibration techniques are described that correct for non-systematic errors in the phase shifts on reflection which would corrupt the beam shape and pointing direction in a practical environment. These can be performed repeatedly, interleaved with the radar or communications waveforms passing through the antenna.
摘要翻译：本发明包括照射由高阻抗表面结构形成的圆形平板（12）的馈电喇叭（10）。通过控制阵列的各个元件的谐振频率，将受控的相移曲线跨越面板的表面施加到从馈电天线球形扩展的入射相位前沿，以便在特定方向上反射该波前或施加某些所需的波束形状。这些原理是相互的，因此也可以实现接收系统，或者实际上可以支持同时发送和接收操作。相位控制的反射板有利地进行进给和波束扫描或波束整形的聚焦。馈送到相位反射板的这种概念允许在自由空间中实现功率分配。此外，影响谐振频率的每个阵列元件的有源元件是单个变容二极管调谐二极管，每个元件具有可忽略的功耗，因为它工作在反向偏置或MeMs开关网络。描述了另一实施例，其包括具有耦合到阵列的每个元件的以MeMs技术实现的相移元件的透射面板。描述校正技术，其校正反射相移中的非系统误差，这将在实际环境中损坏光束形状和指向方向。这些可以重复执行，与雷达交织或通过天线的通信波形。

4. 发明授权

US07808430B2 Scanned antenna system 有权
标题翻译：扫描天线系统
公开(公告)号：US07808430B2
公开(公告)日：2010-10-05
申请号：US12279494
申请日：2007-02-23
申请人： Christopher Ralph Carter , Bernard Paul Gilhespy , Alan David Hart , Adam Armitage
发明人： Christopher Ralph Carter , Bernard Paul Gilhespy , Alan David Hart , Adam Armitage
IPC分类号： H01Q3/00
CPC分类号： H01Q15/0066 , H01Q3/46 , H01Q15/008
摘要： The invention comprises a feed horn (10) illuminating a circular flat panel (12) formed from a high impedance surface structure. By controlling the resonant frequencies of the individual elements of the array, a controlled phase shift profile is applied across the surface of the panel to an incident phase front spherically spreading from the feed antenna so as to reflect that wavefront in a particular direction or impose a certain desired beam shape. The principles are reciprocal so a receiving system can also be achieved or indeed a simultaneous transmit and receive operation can be supported. The phase controlled reflecting plate advantageously performs focussing to the feed and beam scanning or beam shaping. This concept of feed to a phased reflector plate allows the power distribution to be implemented in free space. In addition, the active component at each array element affecting the resonant frequency is a single varactor tuning diode per element with negligible power dissipation since it operates in reverse bias or a MeMs switch network. A further embodiment is described comprising a transmissive panel with phase shifting elements implemented in MeMs technology coupled to each element of the array. Calibration techniques are described that correct for non-systematic errors in the phase shifts on reflection which would corrupt the beam shape and pointing direction in a practical environment. These can be performed repeatedly, interleaved with the radar or communications waveforms passing through the antenna.
摘要翻译：本发明包括照射由高阻抗表面结构形成的圆形平板（12）的馈电喇叭（10）。通过控制阵列的各个元件的谐振频率，将受控的相移曲线跨越面板的表面施加到从馈电天线球形扩展的入射相位前沿，以便在特定方向上反射该波前或施加某些所需的波束形状。这些原理是相互的，因此也可以实现接收系统，或者实际上可以支持同时发送和接收操作。相位控制的反射板有利地进行进给和波束扫描或波束整形的聚焦。馈送到相位反射板的这种概念允许在自由空间中实现功率分配。此外，影响谐振频率的每个阵列元件的有源元件是单个变容二极管调谐二极管，每个元件具有可忽略的功耗，因为它工作在反向偏置或MeMs开关网络。描述了另一实施例，其包括具有耦合到阵列的每个元件的以MeMs技术实现的相移元件的透射面板。描述校正技术，其校正反射相移中的非系统误差，这将在实际环境中损坏光束形状和指向方向。这些可以重复执行，与雷达交织或通过天线的通信波形。

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