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公开(公告)号：US4929906A
公开(公告)日：1990-05-29
申请号：US299950
申请日：1989-01-23
CPC分类号： H03F1/3247 , H03F1/345 , H03F2200/57
摘要： A feedback linearization technique for a power amplifier that does not require the availability of the modulation signals. The RF input signal is down converted to a first IF signal. A portion of the amplifier RF output signal is used to form a feedback signal that is down converted to produce a second IF signal that is subtracted from the first IF signal to produce a different signal. The difference signal is filtered and amplified, and then up converted to RF for input to the power amplifier. Use of feedback at IF avoids stability problems inherent in RF feedback techniques.
摘要翻译： 用于功率放大器的反馈线性化技术，其不需要调制信号的可用性。 RF输入信号被下变频为第一IF信号。 放大器RF输出信号的一部分用于形成反向信号，该反馈信号被下变频以产生从第一IF信号中减去的第二IF信号以产生不同的信号。 差分信号被滤波和放大，然后上变频到RF输入到功率放大器。 在IF中使用反馈可避免RF反馈技术中固有的稳定性问题。
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公开(公告)号：US08643548B2
公开(公告)日：2014-02-04
申请号：US12955259
申请日：2010-11-29
申请人： Robert Tilman Worl , Isaac Ron Bekker , Dan R. Miller , Kenneth G. Voyce , Ming Chen , Harold J. Redd
发明人： Robert Tilman Worl , Isaac Ron Bekker , Dan R. Miller , Kenneth G. Voyce , Ming Chen , Harold J. Redd
IPC分类号： H01Q1/38
CPC分类号： H01Q21/061 , H01Q23/00
摘要： A dual beam dual-selectable-polarization phased array antenna comprises an aperture unit, a printed wiring board, radiating elements, chip units, a pressure plate, and a rear housing unit. The printed wiring board has sub assemblies bonded to each other with a bonding material providing both mechanical and electrical connection. The printed wiring board is connected to the aperture unit. The radiating elements are formed on the printed wiring board. The chip units are mounted on the printed wiring board. The chip units include circuits capable of controlling radio frequency signals radiated by the radiating elements to form dual beams with independently selectable polarization. The pressure plate is connected to the aperture unit. The aperture unit is connected to the rear housing unit such that the aperture unit covers the rear housing unit.
摘要翻译： 双光束双选择偏振相控阵天线包括孔径单元，印刷线路板，辐射元件，芯片单元，压力板和后壳体单元。 印刷线路板具有通过提供机械和电连接的接合材料彼此接合的子组件。 印刷线路板连接到孔径单元。 辐射元件形成在印刷线路板上。 芯片单元安装在印刷电路板上。 芯片单元包括能够控制由辐射元件辐射的射频信号以形成具有可独立选择的极化的双光束的电路。 压板连接到孔单元。 孔单元连接到后壳体单元，使得孔单元覆盖后壳体单元。
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公开(公告)号：US5442361A
公开(公告)日：1995-08-15
申请号：US184535
申请日：1994-01-21
申请人： Steven J. Peters , Kenneth G. Voyce
发明人： Steven J. Peters , Kenneth G. Voyce
摘要： A microwave transceiver using a reflection pumped mixer includes an electromagnetic signal generator, a subreflector, a reflector of electromagnetic signals from the subreflector, a mixer, circulator, and processing circuitry to relate electromagnetic signal frequency differences to the range of a target from the transceiver. Such frequency differences are detected by the mixer from the captured electromagnetic signals reflected distant targets and reflected electromagnetic signals from the subreflector.
摘要翻译： 使用反射泵送混频器的微波收发器包括电磁信号发生器，子反射器，来自子反射器的电磁信号的反射器，混频器，循环器和处理电路，用于将电磁信号频率差与来自收发器的目标的范围相关联。 这样的频率差异由混合器从所拍摄的电磁信号反射的远距离目标和来自子反射器的反射电磁信号中检测出。
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公开(公告)号：US08461965B2
公开(公告)日：2013-06-11
申请号：US12686922
申请日：2010-01-13
申请人： Ming Chen , Fong Shi , Kenneth G. Voyce
发明人： Ming Chen , Fong Shi , Kenneth G. Voyce
IPC分类号： H04Q5/22
CPC分类号： G01S13/4445 , G01S3/043 , G01S13/4454 , G01S13/75
摘要： A particular portable radio frequency identification (RFID) reader includes an active antenna array including a plurality of antenna elements to receive RFID signals from RFID devices. The antenna elements include control circuitry to control a beam pattern generated by the active antenna array. The portable RFID reader further includes sum circuitry and difference circuitry. The sum circuitry is operable to determine a sum signal by summing the RFID signals received by at least two of the plurality of antenna elements. The difference circuitry is operable to determine a difference signal between the RFID signals received by at least two of the plurality of antenna elements. The portable RFID reader also includes a controller to electronically steer the beam pattern and to determine a direction from the RFID reader to a particular RFID device.
摘要翻译： 特定便携式射频识别（RFID）读取器包括有源天线阵列，其包括用于从RFID设备接收RFID信号的多个天线元件。 天线元件包括用于控制由有源天线阵列产生的波束图案的控制电路。 便携式RFID读取器还包括和电路和差分电路。 总和电路可操作以通过将由多个天线元件中的至少两个接收的RFID信号相加来确定和信号。 差分电路可操作以确定由多个天线元件中的至少两个天线元件接收的RFID信号之间的差分信号。 便携式RFID读取器还包括控制器，用于电子地操纵光束图案并确定从RFID读取器到特定RFID设备的方向。
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公开(公告)号：US07450068B2
公开(公告)日：2008-11-11
申请号：US11602015
申请日：2006-11-20
申请人： Ming Chen , Mark A. Curry , Kenneth G. Voyce
发明人： Ming Chen , Mark A. Curry , Kenneth G. Voyce
CPC分类号： G01S3/56 , G01S3/22 , H01Q3/26 , H01Q21/062
摘要： A system and method for using a phased array antenna to concurrently receive an RF signal transmitted by a remote transmitter, to determine the angular location of the remote transmitter using the transmitted signal, and to use that angular location to direct a transmit antenna to transmit information in the direction of the transmitter is disclosed.
摘要翻译： 一种用于使用相控阵天线来同时接收由远程发射机发射的RF信号的系统和方法，以使用所发送的信号来确定远程发射机的角位置，并且使用该角位置来指导发射天线发射信息 在发射机的方向上被公开。
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公开(公告)号：US5049838A
公开(公告)日：1991-09-17
申请号：US409458
申请日：1989-09-19
申请人： Kenneth G. Voyce
发明人： Kenneth G. Voyce
IPC分类号： H03L7/12
CPC分类号： H03L7/12 , Y10S331/02
摘要： A search oscillator (12) is disclosed for use with a closed-loop system (10) to sense when the system is out of lock and enhance the system's pull-in capabilities. The oscillator includes a loop filter (22) and a sensing circuit (24), composed of a positive limit sensor (26) and negative limit sensor (28). When the system is out of lock, the output V.sub.out of the oscillator slews positive or negative in an effort to restore the system to lock. The positive and negative limit sensors monitor the output and reset it when predetermined thresholds are reached, allowing the search or sweep operation to continue until lock is achieved.
摘要翻译： 搜索振荡器（12）被公开用于与闭环系统（10）一起使用以感测系统何时失锁并且增强系统的拉入能力。 该振荡器包括由正极传感器（26）和负极限传感器（28）组成的环路滤波器（22）和感测电路（24）。 当系统失锁时，振荡器的输出Vout为正或负，以恢复系统锁定。 正极和负极限传感器监测输出并在达到预定阈值时将其复位，允许搜索或扫描操作继续，直到达到锁定。
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公开(公告)号：US5757311A
公开(公告)日：1998-05-26
申请号：US530808
申请日：1995-09-20
申请人： Kenneth G. Voyce
发明人： Kenneth G. Voyce
CPC分类号： G01S7/4056 , G01S13/343 , G01S2007/4065
摘要： In a Frequency Modulated Continuous Wave (FMCW) radar, a radar return signal is mixed with a delayed frequency sweep waveform to gain a ranging signal to noise ratio (RSNR) higher than the RSNR available from mixing the return signal with a transmitted waveform.
摘要翻译： 在频率调制连续波（FMCW）雷达中，雷达返回信号与延迟的频率扫描波形混合，以获得比从返回信号与发射波形混合可用的RSNR高的测距信噪比（RSNR）。 ！
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公开(公告)号：US5036331A
公开(公告)日：1991-07-30
申请号：US408777
申请日：1989-09-18
CPC分类号： H01Q3/2605 , H01Q21/245 , H04B7/10
摘要： A polarization diversity system (10) including an adaptive polarization combiner (14) is disclosed. The combiner receives input signals V.sub.i1 and V.sub.i2 of arbitrary relative phase and amplitude, produced in response to orthogonally polarized components of an incident electromagnetic field. The combiner includes a hybrid network (18) that performs the combination of the input V.sub.i1 and V.sub.i2 based on phase adjustments initiated by a feedback circuit (20). The feedback circuit includes a limit set and sensing circuit (26) that allows feedback signals V.sub.c1, V.sub.c2, V.sub.c3, and V.sub.c4 to be swept through a range suitable to phase shifters (28, 32, 36, and 38) included in the hybrid network, thus allowing different components to be more easily used in the hybrid network. Further, the combiner is constructed to function properly in the absence of one of the signals input to the combiner. More particularly, a sensing circuit (22) is employed to disable the sweep function in response to the occurrence of conditions representative of the absence of one of the input signals. As a result, the phase modulation that would otherwise have occurred is limited.
摘要翻译： 公开了一种包括自适应偏振组合器（14）的偏振分集系统（10）。 组合器接收响应于入射电磁场的正交极化分量产生的任意相对相位和振幅的输入信号Vi1和Vi2。 组合器包括基于由反馈电路（20）发起的相位调整来执行输入Vi1和Vi2的组合的混合网络（18）。 反馈电路包括允许反馈信号Vc1，Vc2，Vc3和Vc4扫过适合于包括在混合网络中的移相器（28,32,66和38）的范围的限制设定和感测电路（26） ，从而允许在混合网络中更容易地使用不同的组件。 此外，组合器被构造成在没有输入到组合器的信号之一的情况下正常工作。 更具体地，采用感测电路（22）来响应于表示不存在一个输入信号的条件的发生来禁用扫描功能。 结果，否则将发生的相位调制是有限的。
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公开(公告)号：US4731873A
公开(公告)日：1988-03-15
申请号：US913843
申请日：1986-09-30
申请人： Kenneth G. Voyce
发明人： Kenneth G. Voyce
摘要： A squelch trigger circuit for use in an RF receiver for receiving a modulated carrier signal having a predetermined information band, and producing a squelch trigger signal. The squelch trigger circuit includes a bandpass filter connected to receive the modulated carrier signal and having a passband that includes the information band. The output of the bandpass filter is connected to an AGC circuit that includes a detector for producing a detection signal indicative of the level of the AGC output signal. The detection signal is input to a high pass filter having a corner frequency selected such that the noise signal includes only frequency components higher than one-half of the passband of the bandpass filter, such that the noise signal produced by the high pass filter corresponds to the out of band noise components of the AGC output signal. The noise signal is input to a noise detector for producing a noise level signal, and the noise level signal is compared to a threshold to produce the squelch trigger signal. The threshold may be temperature compensated to model thermal noise in the AGC circuit.
摘要翻译： 一种用于RF接收机的静噪触发电路，用于接收具有预定信息频带的调制载波信号，并产生静噪触发信号。 静噪触发电路包括连接用于接收调制载波信号并具有包括信息频带的通带的带通滤波器。 带通滤波器的输出连接到AGC电路，AGC电路包括用于产生指示AGC输出信号电平的检测信号的检测器。 检测信号被输入到具有被选择的转角频率的高通滤波器，使得噪声信号仅包括高于带通滤波器的通带的一半的频率分量，使得由高通滤波器产生的噪声信号对应于 AGC输出信号的带外噪声分量。 将噪声信号输入到噪声检测器，以产生噪声电平信号，并将噪声电平信号与阈值进行比较以产生静噪触发信号。 阈值可以进行温度补偿，以模拟AGC电路中的热噪声。
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公开(公告)号：US20110068993A1
公开(公告)日：2011-03-24
申请号：US12955259
申请日：2010-11-29
申请人： Robert Tilman Worl , Isaac Ron Bekker , Dan R. Miller , Kenneth G. Voyce , Ming Chen , Harold J. Redd
发明人： Robert Tilman Worl , Isaac Ron Bekker , Dan R. Miller , Kenneth G. Voyce , Ming Chen , Harold J. Redd
CPC分类号： H01Q21/061 , H01Q23/00
摘要： A dual beam dual-selectable-polarization phased array antenna comprises an aperture unit, a printed wiring board, radiating elements, chip units, a pressure plate, and a rear housing unit. The printed wiring board has sub assemblies bonded to each other with a bonding material providing both mechanical and electrical connection. The printed wiring board is connected to the aperture unit. The radiating elements are formed on the printed wiring board. The chip units are mounted on the printed wiring board. The chip units include circuits capable of controlling radio frequency signals radiated by the radiating elements to form dual beams with independently selectable polarization. The pressure plate is connected to the aperture unit. The aperture unit is connected to the rear housing unit such that the aperture unit covers the rear housing unit.
摘要翻译： 双光束双选择偏振相控阵天线包括孔径单元，印刷线路板，辐射元件，芯片单元，压力板和后壳体单元。 印刷线路板具有通过提供机械和电连接的接合材料彼此接合的子组件。 印刷线路板连接到孔径单元。 辐射元件形成在印刷线路板上。 芯片单元安装在印刷电路板上。 芯片单元包括能够控制由辐射元件辐射的射频信号以形成具有可独立选择的极化的双光束的电路。 压板连接到孔单元。 孔单元连接到后壳体单元，使得孔单元覆盖后壳体单元。
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