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公开(公告)号：US06690325B1
公开(公告)日：2004-02-10
申请号：US10176040
申请日：2002-06-21
申请人： Wimin Zhou
发明人： Wimin Zhou
IPC分类号： H01Q322
CPC分类号： B82Y20/00 , G02B6/1225 , H01Q3/2676
摘要： An optical method and apparatus for generating true time delay signals for a phased array antenna. An optical beam is directed along a series of N paths of equal length L having U-turns therebetween and optical sub-beams are extracted at ends of the N paths and converted to electrical signals to create the true time delays.
摘要翻译： 一种用于产生相控阵天线的真实时间延迟信号的光学方法和装置。 光束沿着具有U形转弯的等长L的一系列N路径引导，并且在N路径的端部处提取光子束，并将其转换为电信号以产生真实的时间延迟。
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公开(公告)号：US06600445B2
公开(公告)日：2003-07-29
申请号：US10073566
申请日：2002-02-11
申请人： Shihe Li
发明人： Shihe Li
IPC分类号： H01Q322
摘要： This invention discloses a method and a device for calibrating smart antenna arrays in real time. The invention includes the steps of providing a calibrating link comprising a coupling structure, feeder cables and pilot transceiver; pre-calibrating the coupling structure with a vector network analyzer and recording its receiving and transmitting transmission coefficients, respectively; implementing the receiving calibration to a smart antenna array by adjusting the transmission coefficient of each receiving link and a reference link to the same amplitude and phase difference &PHgr;, which is recorded and stored in a baseband processor; and implementing the transmitting calibration by adjusting the transmission coefficient of each transmitting link and a reference link to the same amplitude and phase difference &PSgr;, which is recorded and stored in the baseband processor. The coupling structure of the invention is implemented by a pilot antenna using spatial couple mode or a passive network.
摘要翻译： 本发明公开了一种用于实时校准智能天线阵列的方法和装置。 本发明包括提供包括耦合结构，馈电电缆和导频收发器的校准链路的步骤; 用矢量网络分析仪预先校准耦合结构，并分别记录其接收和传输传输系数; 通过将每个接收链路的传输系数和参考链路调整到相同的幅度和相位差PHI来实现对智能天线阵列的接收校准，其被记录并存储在基带处理器中; 通过将每个发送链路的传输系数和参考链路调整到基带处理器中记录并存储的相同幅度和相位差PSgr，来实现发送校准。 本发明的耦合结构由使用空间耦合模式或无源网络的导频天线实现。
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公开(公告)号：US06556168B1
公开(公告)日：2003-04-29
申请号：US09869203
申请日：2001-09-26
IPC分类号： H01Q322
CPC分类号： H01Q23/00 , H01L2224/16225 , H01L2224/48091 , H01L2224/48227 , H01L2924/15311 , H01L2924/3025 , H01Q21/0087 , H01Q21/065 , H01L2924/00014
摘要： A relatively small phased array antenna is formed at a low cost even if the number of radiating elements increases in order to improve the gain. The phased array antenna has a multilayered structure in which a number of radiating elements (15), a phase shift unit (16) for changing the phase of an RF signal transmitted/received at each radiating element, and a distribution/synthesis unit (14) are formed on different layers. Signal lines (X1-Xm) and scanning lines (Y1-Yn) are wired on a phase control layer (35) to connect phase shift units to each other in a matrix. The signal lines and the scanning lines are matrix-driven by selection units (12X, 12Y) so that desired phase shift amounts are set to phase shift units located at the intersections of the signal and scanning lines. In addition, circuit portions repeatedly arranged in a single phase shift unit are formed into single chips mounted on another substrate.
摘要翻译： 即使辐射元件的数量增加以增加增益，也以低成本形成相对小的相控阵天线。 相控阵天线具有多层结构，其中多个辐射元件（15），用于改变在每个辐射元件处发射/接收的RF信号的相位的相移单元（16）和分布/合成单元（14） ）形成在不同的层上。 信号线（X1-Xm）和扫描线（Y1-Yn）被布线在相位控制层（35）上，以将矩阵中的相移单元相互连接。 信号线和扫描线由选择单元（12X，12Y）进行矩阵驱动，使得期望的相移量被设置为位于信号和扫描线的交点处的相移单元。 此外，重复布置在单相移单元中的电路部分形成为安装在另一基板上的单个芯片。
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4.发明授权公开(公告)号：US06549164B2
公开(公告)日：2003-04-15
申请号：US09816047
申请日：2001-03-22
IPC分类号： H01Q322
CPC分类号： H01Q3/267
摘要： A phased array type antenna apparatus compensates for phase and time differences between signals received at different elements of the antenna. Each element within the antenna apparatus has an associated phase/time adjuster circuit. The signals from each element are divided, with the first output routed to a combining circuit. The second output of one element is used as a reference signal, with the second output from the remaining elements routed to a switch. One signal is selected at the switch, and is used as a non-reference signal. Phase difference between the reference signal and the non-reference signal is determined at a comparator circuit, and the phase/time adjuster circuit associated with the non-reference signal is adjusted to bring the two signals into phase alignment. Time difference between the reference and non-reference signal is determined using dual correlators and a comparator circuit. The comparator circuit compares the magnitude of an in-phase channel and a quadrature channel from each comparator to determine time difference between the signals. The phase/time adjuster circuit is adjusted to bring the signals into time alignment. When each element is phase and time aligned, the output of the combining circuit is enhanced. Time difference can also be determined for several distinct phased array apertures within an antenna apparatus.
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公开(公告)号：US06515622B1
公开(公告)日：2003-02-04
申请号：US09593642
申请日：2000-06-13
IPC分类号： H01Q322
CPC分类号： H01Q21/0006 , H01Q3/36
摘要： An ultra-wideband beamformer is provided by using conventional phase shifting techniques to impress data and antenna scan information onto a narrow band signal. A non-linear element then converts the narrow sine wave into ultra-wideband pulses. Phase shift key modulation impresses data information onto the sine wave in the form of a phase shift. The data-bearing sine wave is split into multiple transmission lines where each provides an additional antenna scanning phase shift. The non-linear element converts each phase of the sine wave into short pulses which are sent to radiating elements for transmission. In the far-field of the beam, the scan delays between the radiating elements are canceled out, such that the fields from each radiating element are summed and the pulse position modulated data recovered.
摘要翻译： 通过使用传统的相移技术将数据和天线扫描信息压印到窄带信号上来提供超宽带波束形成器。 然后，非线性元件将窄正弦波转换成超宽带脉冲。 相移键调制将数据信息以相移的形式印在正弦波上。 数据承载正弦波分为多条传输线，每条传输线都提供一个附加的天线扫描相移。 非线性元件将正弦波的每个相位转换成短脉冲，发送到辐射元件进行传输。 在光束的远场中，消除辐射元件之间的扫描延迟，使得来自每个辐射元件的场相加并且恢复脉冲位置调制数据。
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6.发明授权公开(公告)号：US06507314B2
公开(公告)日：2003-01-14
申请号：US10096765
申请日：2002-03-13
申请人： Donald C. D. Chang , Kar Yung , Frank A. Hagen , Weizheng Wang
发明人： Donald C. D. Chang , Kar Yung , Frank A. Hagen , Weizheng Wang
IPC分类号： H01Q322
摘要： A method for beamforming signals for an array of receiving or transmitting elements includes the steps of selecting a beam elevation and azimuth and grouping elements of an antenna array into element ensembles that are substantially aligned with a wavefront projection on the antenna array corresponding to the selected beam elevation and azimuth.
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公开(公告)号：US06480154B1
公开(公告)日：2002-11-12
申请号：US09543286
申请日：2000-04-05
IPC分类号： H01Q322
CPC分类号： H01Q3/26
摘要： In accordance with the invention, the digital samples associated with each of the array elements arranged along a plurality of parallel lines are shifted by a distinct predetermined number of positions along each of said lines, and the digital samples of each line are added separately. Thereafter, each sum thus obtained is multiplied by a distinct phase coefficient. The signals thus obtained for each beam are all in phase. The lines of array elements that are electronically scanned can be oriented along any direction, and advantageously along one or a plurality of diagonals of the array and the electronic scanning of the array elements can be made separately along odd alternate diagonals and along even alternate diagonals.
摘要翻译： 根据本发明，与沿着多个平行线布置的每个阵列元件相关联的数字样本沿着每个所述线移动不同的预定数量的位置，并且每行的数字样本被单独添加。 此后，将如此获得的每个和乘以不同的相位系数。 由此获得的每个光束的信号都是同相的。 电子扫描的阵列元件的线可以沿着任何方向定向，并且有利地沿着阵列的一个或多个对角线定位，并且阵列元件的电子扫描可以沿着奇数交替对角线以及沿着偶数对角线分开制造。
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8.发明授权公开(公告)号：US06480153B1
公开(公告)日：2002-11-12
申请号：US09995838
申请日：2001-11-29
申请人： Jae Ho Jung , Hyeong Geon Park , Hyun Seo Oh , Mun Geon Kyeong
发明人： Jae Ho Jung , Hyeong Geon Park , Hyun Seo Oh , Mun Geon Kyeong
IPC分类号： H01Q322
CPC分类号： H01Q3/267
摘要： The present invention utilizes a calibration signal weight vector as a response vector corresponding to a predetermined orientation angle of the antenna, thereby reducing an interference signal and enhancing a data communication effectively. The calibration method of an array antenna begins with generating a calibration signal in order to measure a transfer function of an array receiving means. A calibration signal vector is injected into the array receiver/transmitter, after multiplying a divided calibration signal and a predetermined weight vector corresponding to each channel together. The divided calibration signal is obtained by dividing the calibration signal by total number of channels. A calibration coefficient is obtained by using that the transfer function of each channel is estimated by analyzing the signal injected from the array receiver or transmitter. Finally, an interference signal is eliminated, by multiplying the received signal of a baseband and the calibration coefficient together.
摘要翻译： 本发明利用校准信号权重向量作为与天线的预定取向角对应的响应向量，从而有效地减少干扰信号和增强数据通信。 阵列天线的校准方法从生成校准信号开始，以测量阵列接收装置的传递函数。 在将分割的校准信号和对应于每个通道的预定权重向量相乘之后，将校准信号向量注入到阵列接收器/发射器中。 分频校准信号通过将校准信号除以总信道数获得。 通过使用通过分析从阵列接收器或发射器注入的信号来估计每个通道的传递函数来获得校准系数。 最后，通过将基带的接收信号和校准系数相乘来消除干扰信号。
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公开(公告)号：US06426720B1
公开(公告)日：2002-07-30
申请号：US09541545
申请日：2000-04-03
申请人： John Anderson Fergus Ross , John Erik Hershey , Richard August Korkosz , Naofal Mohammed Wassel Al-Dhahir , William Robert McKinney , Bruce Gunter Schings
发明人： John Anderson Fergus Ross , John Erik Hershey , Richard August Korkosz , Naofal Mohammed Wassel Al-Dhahir , William Robert McKinney , Bruce Gunter Schings
IPC分类号： H01Q322
CPC分类号： G08C15/12 , G08C17/02 , H01Q1/241 , H01Q1/246 , H01Q1/28 , H01Q1/32 , H01Q1/3233 , H01Q3/2605 , H04B7/18502 , H04B7/18506
摘要： A system for directing a receiving lobe of an adaptive antenna array toward an aircraft in flight includes an aircraft position vector calculator and an antenna weight vector generator. The aircraft position vector calculator receives aircraft position information from an aircraft tracking service and calculates, based upon the aircraft position information it receives, an aircraft position vector g. An antenna weight vector generator receives the aircraft position vector g from the aircraft position vector calculator and generates, based upon the aircraft position vector g, an antenna element weight vector w. The antenna weight vector w is applied to the elements of an adaptive antenna array to direct a receiving lobe of the array towards an aircraft in flight.
摘要翻译： 用于将自适应天线阵列的接收波瓣引导到飞行中的飞行器的系统包括飞行器位置矢量计算器和天线加权矢量发生器。 飞行器位置矢量计算器从飞机跟踪服务器接收飞机位置信息，并且基于其接收到的飞行器位置信息来计算飞行器位置矢量g。 天线权重向量生成器从飞行器位置矢量计算器接收飞机位置矢量g，并且基于飞机位置向量g生成天线元重量向量w。 天线权重向量w被施加到自适应天线阵列的元件，以将阵列的接收波瓣引向飞行中的飞行器。
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公开(公告)号：US06380908B1
公开(公告)日：2002-04-30
申请号：US09567543
申请日：2000-05-05
申请人： G. Van Andrews , Gary A. Frazier
发明人： G. Van Andrews , Gary A. Frazier
IPC分类号： H01Q322
CPC分类号： H01Q3/26 , H01Q3/2682
摘要： A digital phased array antenna data processing system comprises an antenna array having a plurality of antenna elements connected to an analog-to-digital converter for digitizing received signals. Each analog-to-digital converter is connected to the output of a clock time delay unit also connected to the output of a master clock. The time delay digitized output of the analog-to-digital converter is applied to a data time delay unit for a realignment updated signal from the elements of the antenna.
摘要翻译： 数字相控阵天线数据处理系统包括具有连接到模数转换器的多个天线元件的天线阵列，用于数字化接收的信号。 每个模数转换器连接到也连接到主时钟的输出的时钟延时单元的输出。 模数转换器的时间延迟数字化输出被应用于来自天线的元件的重新对准更新信号的数据时间延迟单元。
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