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1.发明授权公开(公告)号：US06175672B1
公开(公告)日：2001-01-16
申请号：US09336264
申请日：1999-06-18
申请人： Irwin L. Newberg , Robert R. Hayes , Kapriel V. Krikorian , Robert Y. Loo , Willie W. Ng , Robert A. Rosen
发明人： Irwin L. Newberg , Robert R. Hayes , Kapriel V. Krikorian , Robert Y. Loo , Willie W. Ng , Robert A. Rosen
IPC分类号： G02B628
CPC分类号： H04B10/2575
摘要： A substantially lossless transmissive link, such as an RF fiber optic link, that selectively employs a number of techniques to improve various link parameters. The link may be structured to comprise a high power light source, such as a laser, that provides light output having a high level of optical power. A feedback circuit may be disposed around the light source that reduces relative-intensity-noise levels produced by the light source at low frequencies. A modulator is provided that modulates the light output of the light source. Preferably, a dual output modulator may be used to provide two modulated optical signals whose respective RF modulation is “effectively” 180 degrees out of phase. An optical fiber that transmits the modulated optical signal(s). A photodetector without a load resistor directly on its output that is operable at the high level of optical power, receives the modulated light and recovers the RF signal. A dual balaniced photodetector that is used in conjunction with the dual output modulator. An RF component, such as an amiplifier, that is coupled directly to an output of the photodetector that provides a load resistance for the link.
摘要翻译： 基本上无损的透射链路，例如RF光纤链路，其选择性地采用多种技术来改善各种链路参数。 链路可以被构造为包括提供具有高水平光功率的光输出的诸如激光器的高功率光源。 可以在光源周围设置反馈电路，从而降低光源在低频时产生的相对强度噪声水平。 提供调制器来调节光源的光输出。 优选地，双输出调制器可以用于提供两个调制的光信号，其相应的RF调制“有效地”相位相差180度。 发送调制光信号的光纤。 没有负载电阻器的光电检测器直接在其输出端处可以在高功率电平下工作，接收调制的光并恢复RF信号。 双重平衡光电检测器，与双输出调制器结合使用。 RF分量，例如放大器，其直接耦合到光电检测器的输出端，为链路提供负载电阻。
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公开(公告)号：US07092596B2
公开(公告)日：2006-08-15
申请号：US10126569
申请日：2002-04-19
CPC分类号： G01S7/282 , G02B6/2861 , H01Q3/2676 , H01Q3/2682
摘要： A recirculating delay line that includes an optical delay circuit generates repetitions of an input signal waveform that is of limited time duration.
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公开(公告)号：US07061443B2
公开(公告)日：2006-06-13
申请号：US10815274
申请日：2004-04-01
IPC分类号： H01Q13/10
CPC分类号： H01Q21/005
摘要： A millimeter wave (MMW) antenna array includes a continuous transverse stub (CTS) radiating aperture comprising a set of spaced continuous transverse stubs, each having a longitudinal extent. A series feed system is coupled to an excitation source for exciting the stubs with MMW electromagnetic energy having a linear phase progression along the longitudinal extent of the stubs to produce an array beam which can be scanned over a beam scan range by changing the excitation frequency.
摘要翻译： 毫米波（MMW）天线阵列包括连续横向短截线（CTS）辐射孔，其包括一组间隔开的连续横向短截线，每个具有纵向延伸。 串联馈送系统耦合到激励源，用于以沿着短截线的纵向范围具有线性相位前进的MMW电磁能激发短截线，以产生可以通过改变激励频率在波束扫描范围上扫描的阵列波束。
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4.发明授权
公开(公告)号：US5933113A
公开(公告)日：1999-08-03
申请号：US711428
申请日：1996-09-05
CPC分类号： H01Q25/00 , H01Q21/061 , H01Q3/04 , H01Q3/22 , H01Q3/2676
摘要： Fiber optic delay lines in the form of a modified corporate feed having progressive phase delays and a corporate feed having equal phase delays are used to couple RF modulated light signals to detecting, mixing, amplifying and radiating devices of an active array radar. Different RF signals may be sent over the same fiber delay lines using different light colors (or wavelengths) so that the RF modulated signals in the fiber delay lines do not interact with each other. The RF signals can be put on and taken out of the fiber lines using wavelength division multiplexers, for example. This provides an array with a single optical manifold that allows simultaneous full aperture operation at multiple frequencies and/or beams over a wide operating frequency range.
摘要翻译： 使用具有逐行相位延迟的修改后的公司馈送形式的光纤延迟线和具有相等相位延迟的公司馈线将RF调制光信号耦合到有源阵列雷达的检测，混合，放大和辐射器件。 可以使用不同的光色（或波长）在相同的光纤延迟线上发送不同的RF信号，使得光纤延迟线中的RF调制信号彼此不相互作用。 例如，可以使用波分复用器将RF信号放在光纤线路中并从光纤线路中取出。 这提供了具有单个光学歧管的阵列，其允许在宽的工作频率范围内在多个频率和/或波束处同时进行全孔径操作。
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公开(公告)号：US20080225375A1
公开(公告)日：2008-09-18
申请号：US12148392
申请日：2008-04-18
IPC分类号： G02F1/01
摘要： A system for scanning an antenna array of the present invention. The system includes a first mechanism for modulating a desired signal on an optical carrier signal. The first mechanism includes a frequency-tunable optical oscillator with a phase shifter for changing an output frequency of the optical oscillator. A second mechanism employs the optical carrier signal to derive signals having predetermined phase relationships. A third mechanism receives the feed signals and radiates corresponding transmit signals in response thereto to the antenna array to steer the array. In more specific embodiment, the desired signal is a Radio Frequency (RF) signal, and the phase shifter is an electrically controlled optical RF phase shifter. The optical carrier signal includes a first optical carrier signal and a second optical carrier signal. The frequency-tunable optical oscillator includes a first tunable optical oscillator for providing the first optical carrier signal and a second tunable optical oscillator for providing the second optical carrier signal. The first and second optical oscillators include first and second optical RF phase shifters, respectively, that include feedback paths having optical and electrical sections.
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公开(公告)号：US07391367B2
公开(公告)日：2008-06-24
申请号：US10953145
申请日：2004-09-28
IPC分类号： H01Q3/34
CPC分类号： H01Q3/2676
摘要： A system for scanning an antenna array of the present invention. The system includes a first mechanism for modulating a desired signal on an optical carrier signal. The first mechanism includes a frequency-tunable optical oscillator with a phase shifter for changing an output frequency of the optical oscillator. A second mechanism employs the optical carrier signal to derive signals having predetermined phase relationships. A third mechanism receives the feed signals and radiates corresponding transmit signals in response thereto to the antenna array to steer the array. In more specific embodiment, the desired signal is a Radio Frequency (RF) signal, and the phase shifter is an electrically controlled optical RF phase shifter. The optical carrier signal includes a first optical carrier signal and a second optical carrier signal. The frequency-tunable optical oscillator includes a first tunable optical oscillator for providing the first optical carrier signal and a second tunable optical oscillator for providing the second optical carrier signal. The first and second optical oscillators include first and second optical RF phase shifters, respectively, that include feedback paths having optical and electrical sections.
摘要翻译： 一种用于扫描本发明的天线阵列的系统。 该系统包括用于调制光载波信号上的期望信号的第一机构。 第一机构包括具有用于改变光学振荡器的输出频率的移相器的频率可调谐的光学振荡器。 第二种机制采用光载波信号来导出具有预定相位关系的信号。 第三机构接收馈送信号并且响应于天线阵列辐射相应的发射信号以引导阵列。 在更具体的实施例中，期望的信号是射频（RF）信号，移相器是电控光学RF移相器。 光载波信号包括第一光载波信号和第二光载波信号。 频率可调谐光学振荡器包括用于提供第一光载波信号的第一可调谐光学振荡器和用于提供第二光载波信号的第二可调谐光振荡器。 第一和第二光学振荡器分别包括第一和第二光学RF移相器，其包括具有光学和电气部分的反馈路径。
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公开(公告)号：US5400162A
公开(公告)日：1995-03-21
申请号：US145949
申请日：1993-10-29
申请人： Irwin L. Newberg , Richard C. Lind , Gregory L. Tangonan , Huan W. Yen , Willie W. Ng , Jar J. Lee , Andrew A. Walston , Michael Wechsberg
发明人： Irwin L. Newberg , Richard C. Lind , Gregory L. Tangonan , Huan W. Yen , Willie W. Ng , Jar J. Lee , Andrew A. Walston , Michael Wechsberg
CPC分类号： H04Q11/0003 , H01Q3/2676 , G02B6/2861 , H04Q2011/0015 , H04Q2011/002 , H04Q2011/0039
摘要： Optoelectronic switching apparatus employing optoelectronic switching devices interconnected by optical media having different delay lengths and an multiport optical coupler. The optoelectronic switching apparatus provides for a multibit true-time-delay beamsteerer for beamsteering phased array antennas. The present invention combines two types of optoelectronic devices, lasers and photodiode switches, using an interconnected passive optical network comprising the optical fibers and the optical coupler. The switches, and input and output signal networks coupled to the respective switches, are controlled using a control signal generator. Using this scheme, any input can be independently selected and a signal can be routed to any output. Furthermore, the product of the total number of different interconnect paths (N.times.M) is provided which provides a greater number of delay lengths than is provided by using only one type of switch (i.e. laser (N) or photodiode (M)) alone. The present invention also provides for improved insertion loss while increasing the number of delay paths.
摘要翻译： 使用通过具有不同延迟长度的光学介质互连的光电开关装置的光电开关装置和多端口光耦合器。 光电开关装置提供用于波束导向相控阵天线的多位真实时间延迟波束整形器。 本发明使用包括光纤和光耦合器的互连无源光网络结合了两种类型的光电子器件，激光器和光电二极管开关。 耦合到相应开关的开关以及输入和输出信号网络使用控制信号发生器进行控制。 使用此方案，可以独立选择任何输入，并将信号路由到任何输出。 此外，提供了不同的互连路径（NxM）的总数的乘积，其提供比仅通过仅使用一种类型的开关（即，激光（N）或光电二极管（M））提供的更多数量的延迟长度。 本发明还提供了增加插入损耗的同时增加延迟路径的数量。
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8.发明授权Programmable fiber optic delay line, and radar target simulation system incorporating the same 失效可编程光纤延迟线和雷达目标仿真系统相结合
公开(公告)号：US5177488A
公开(公告)日：1993-01-05
申请号：US773187
申请日：1991-10-08
申请人： Harry T. Wang , Irwin L. Newberg , Adrian E. Popa , Robert R. Hayes , John K. Keigharn , Bill H. Otoide
发明人： Harry T. Wang , Irwin L. Newberg , Adrian E. Popa , Robert R. Hayes , John K. Keigharn , Bill H. Otoide
CPC分类号： G01S7/4052 , G01S2007/4095
摘要： A programmable fiber optic delay system employs multiple programmable fiber optic delay lines, and switches among the delay lines for inclusion in an overall delay path. Switching among the delay lines is coordinated with the programming of those lines so that only a delay line with a settled delay program is included in the overall delay path. Each delay line consists of a plurality of fiber optic segments of varying length. The line's delay is programmed by switching in particular segments whose aggregate lengths correspond to a desired delay period. The multiple delay lines are used to simulate target speed and distance for use in testing a radar system. The programming of each individual delay line and the switching between lines is preferably controlled by a computer resident in the target simulator.
摘要翻译： 可编程光纤延迟系统采用多个可编程光纤延迟线，并在延迟线之间切换以包含在整个延迟路径中。 延迟线之间的切换与这些线的编程协调，使得只有具有稳定延迟程序的延迟线被包括在整个延迟路径中。 每个延迟线由多个长度不同的光纤段组成。 通过切换其长度对应于所需延迟周期的特定段来编程线路的延迟。 多个延迟线用于模拟用于测试雷达系统的目标速度和距离。 每个单独的延迟线的编程和线之间的切换优选地由驻留在目标模拟器中的计算机控制。
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公开(公告)号：US07545322B2
公开(公告)日：2009-06-09
申请号：US11230376
申请日：2005-09-20
申请人： Irwin L. Newberg , Ike Y. Chang
发明人： Irwin L. Newberg , Ike Y. Chang
CPC分类号： H01Q1/28 , H01Q1/276 , H01Q1/32 , H01Q3/2647 , H01Q21/0025 , H01Q21/0087
摘要： Provided is an antenna transceiver system for transmitting and receiving voice, digital data, radar and IR signals, and for processing received signals for use by an operator. The system includes an antenna array having a plurality of radiating elements, each element connected to a transmit/receive (“T/R”) module. Each T/R module includes phase shifters, as well as a phase conjugation module for transmitting a return signal to a location along a beam path of an incoming signal. Transmission of the return signal does not require knowledge of the location of either the signal source or the antenna transceiver system. The antenna transceiver system is disposed on a plurality of vertically aligned planes integrated into a compact unit. The units can be embedded in headgear of a user, allowing for hands-free operation of the system. Alternatively, the antenna transceiver system can be integrated into a vehicle, man-transportable backpack, or other designated platforms.
摘要翻译： 提供了一种用于发送和接收语音，数字数据，雷达和IR信号的天线收发器系统，并且用于处理由操作者使用的接收信号。 该系统包括具有多个辐射元件的天线阵列，每个元件连接到发射/接收（“T / R”）模块。 每个T / R模块包括移相器，以及用于将返回信号发送到沿着输入信号的波束路径的位置的相位共轭模块。 返回信号的传输不需要知道信号源或天线收发器系统的位置。 天线收发器系统设置在集成到紧凑单元中的多个垂直对齐的平面上。 这些单元可以嵌入用户的头饰，允许系统的免提操作。 或者，天线收发器系统可以集成到车辆，可人运的背包或其他指定的平台中。
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公开(公告)号：US5608331A
公开(公告)日：1997-03-04
申请号：US471812
申请日：1995-06-06
CPC分类号： G01R29/26
摘要： A noise measurement test system 10' for making phase noise and amplitude noise measurements of microwave signals derived from a continuous wave RF source. The system 10' comprises an RF input for receiving an applied RF noise signal and an RF coupler 11 coupled to the RF input for splitting the applied RF noise signal into first and second paths 18a, 18b. A mixer 15 that comprises a synchronous phase detector 15 is coupled to receive signals from the first and second paths 18a, 18b, respectively, and which outputs demodulated phase noise. The first path 18a comprises a variable attenuator 14 and a variable phase shifter 13 coupled between the coupler 11 and the first input of the mixer 15 for providing a reference signal input to the synchronous detector 15. The second path 18b comprises a delay line and an adjustable RF carrier nulling circuit 30 coupled between the coupler 11 and the mixer 15. A video amplifier is coupled to an output of the mixer 15 for providing a baseband video output signal from the system 10' that is processed to produce noise data.
摘要翻译： 一种用于对从连续波RF源得到的微波信号进行相位噪声和振幅噪声测量的噪声测量测试系统10'。 系统10'包括用于接收施加的RF噪声信号的RF输入和耦合到RF输入的RF耦合器11，用于将所施加的RF噪声信号分离成第一和第二路径18a，18b。 包括同步相位检测器15的混频器15分别被耦合以从第一和第二路径18a，18b接收信号，并输出解调的相位噪声。 第一路径18a包括可变衰减器14和耦合在耦合器11和混频器15的第一输入端之间的可变移相器13，用于提供输入到同步检测器15的参考信号。第二路径18b包括延迟线和 耦合在耦合器11和混频器15之间的可调整的RF载波零位电路30.视频放大器耦合到混频器15的输出，用于提供来自系统10'的基带视频输出信号，该基带视频输出信号被处理以产生噪声数据。
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