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    670 GHz Schottky diode based subharmonic mixer with CPW circuits and 70 GHz IF
    3.
    发明授权
    670 GHz Schottky diode based subharmonic mixer with CPW circuits and 70 GHz IF 有权
    670 GHz基于肖特基二极管的次谐波混频器，CPW电路和70 GHz IF

    公开(公告)号：US08693973B2

    公开(公告)日：2014-04-08

    申请号：US13462679

    申请日：2012-05-02

    申请人： Goutam Chattopadhyay ,  Erich T. Schlecht ,  Choonsup Lee ,  Robert H. Lin ,  John J. Gill ,  Seth Sin ,  Imran Mehdi

    发明人： Goutam Chattopadhyay ,  Erich T. Schlecht ,  Choonsup Lee ,  Robert H. Lin ,  John J. Gill ,  Seth Sin ,  Imran Mehdi

    IPC分类号： H04B1/26

    CPC分类号： H03D7/02 ,  H01L29/20 ,  H01L29/66212 ,  H01L29/872 ,  H03D9/0633

    摘要： A coplanar waveguide (CPW) based subharmonic mixer working at 670 GHz using GaAs Schottky diodes. One example of the mixer has a LO input, an RF input and an IF output. Another possible mixer has a LO input, and IF input and an RF output. Each input or output is connected to a coplanar waveguide with a matching network. A pair of antiparallel diodes provides a signal at twice the LO frequency, which is then mixed with a second signal to provide signals having sum and difference frequencies. The output signal of interest is received after passing through a bandpass filter tuned to the frequency range of interest.

    摘要翻译： 基于共面波导（CPW）的次谐波混频器使用GaAs肖特基二极管在670 GHz工作。 混频器的一个例子有LO输入，RF输入和IF输出。 另一个可能的混频器具有LO输入，IF输入和RF输出。 每个输入或输出连接到具有匹配网络的共面波导。 一对反并联二极管提供两倍于LO频率的信号，然后与第二信号混合以提供具有和和差频率的信号。 感兴趣的输出信号在通过调谐到感兴趣的频率范围的带通滤波器之后被接收。

    ON-CHIP POWER-COMBINING FOR HIGH-POWER SCHOTTKY DIODE BASED FREQUENCY MULTIPLIERS
    4.
    发明申请
    ON-CHIP POWER-COMBINING FOR HIGH-POWER SCHOTTKY DIODE BASED FREQUENCY MULTIPLIERS 有权
    基于大功率肖特基二极管的频率乘法器的片上功率组合

    公开(公告)号：US20130229210A1

    公开(公告)日：2013-09-05

    申请号：US13595964

    申请日：2012-08-27

    申请人： Jose V. Siles ,  Goutam Chattopadhyay ,  Choonsup Lee ,  Erich T. Schlecht ,  Cecile Jung ,  Imran Mehdi

    发明人： Jose V. Siles ,  Goutam Chattopadhyay ,  Choonsup Lee ,  Erich T. Schlecht ,  Cecile Jung ,  Imran Mehdi

    IPC分类号： H03B19/16 ,  H01L21/77

    CPC分类号： H03B19/16 ,  H01L21/77 ,  H01L23/66 ,  H01L27/0814 ,  H01L2223/6627 ,  H01L2223/6677 ,  H01L2223/6683 ,  H01L2224/48091 ,  H01L2924/12032 ,  H03B19/18 ,  H03B2200/0032 ,  H03B2200/0076 ,  H01L2924/00014 ,  H01L2924/00

    摘要： A novel MMIC on-chip power-combined frequency multiplier device and a method of fabricating the same, comprising two or more multiplying structures integrated on a single chip, wherein each of the integrated multiplying structures are electrically identical and each of the multiplying structures include one input antenna (E-probe) for receiving an input signal in the millimeter-wave, submillimeter-wave or terahertz frequency range inputted on the chip, a stripline based input matching network electrically connecting the input antennas to two or more Schottky diodes in a balanced configuration, two or more Schottky diodes that are used as nonlinear semiconductor devices to generate harmonics out of the input signal and produce the multiplied output signal, stripline based output matching networks for transmitting the output signal from the Schottky diodes to an output antenna, and an output antenna (E-probe) for transmitting the output signal off the chip into the output waveguide transmission line.

    摘要翻译： 一种新颖的MMIC片上功率组合倍频器及其制造方法，包括集成在单个芯片上的两个或更多个乘法结构，其中每个集成乘法结构是电气相同的，并且每个乘法结构包括一个 用于接收在芯片上输入的毫米波，亚毫米波或太赫兹频率范围内的输入信号的输入天线（E-probe），将输入天线与平衡的两个或更多个肖特基二极管电连接的带状线输入匹配网络 配置，用作非线性半导体器件的两个或更多个肖特基二极管，以从输入信号中产生谐波并产生相乘的输出信号，基于带状线的输出匹配网络，用于将输出信号从肖特基二极管传输到输出天线，以及 输出天线（E-probe），用于将输出信号从芯片传输到输出波导反相中 任务线。

    HIGH-RESOLUTION THREE-DIMENSIONAL IMAGING RADAR
    6.
    发明申请
    HIGH-RESOLUTION THREE-DIMENSIONAL IMAGING RADAR 有权
    高分辨率三维成像雷达

    公开(公告)号：US20080304044A1

    公开(公告)日：2008-12-11

    申请号：US12135040

    申请日：2008-06-06

    申请人： Ken B. Cooper ,  Goutam Chattopadhyay ,  Peter H. Siegel ,  Robert J. Dengler ,  Erich T. Schlecht ,  Imran Mehdi ,  Anders J. Skalare

    发明人： Ken B. Cooper ,  Goutam Chattopadhyay ,  Peter H. Siegel ,  Robert J. Dengler ,  Erich T. Schlecht ,  Imran Mehdi ,  Anders J. Skalare

    IPC分类号： G01C3/08

    CPC分类号： G01S13/89 ,  G01S13/34 ,  G01S13/887

    摘要： A three-dimensional imaging radar operating at high frequency e.g., 670 GHz, is disclosed. The active target illumination inherent in radar solves the problem of low signal power and narrow-band detection by using submillimeter heterodyne mixer receivers. A submillimeter imaging radar may use low phase-noise synthesizers and a fast chirper to generate a frequency-modulated continuous-wave (FMCW) waveform. Three-dimensional images are generated through range information derived for each pixel scanned over a target. A peak finding algorithm may be used in processing for each pixel to differentiate material layers of the target. Improved focusing is achieved through a compensation signal sampled from a point source calibration target and applied to received signals from active targets prior to FFT-based range compression to extract and display high-resolution target images. Such an imaging radar has particular application in detecting concealed weapons or contraband.

    摘要翻译： 公开了以高频例如670GHz操作的三维成像雷达。 雷达固有的有源目标照明通过使用亚毫米外差式混频器接收机解决了低信号功率和窄带检测问题。 亚毫米成像雷达可以使用低相位噪声合成器和快速啁啾来产生调频连续波（FMCW）波形。 通过针对在目标上扫描的每个像素导出的范围信息生成三维图像。 可以在每个像素的处理中使用峰值发现算法来区分目标的材料层。 通过从点源校准目标采样的补偿信号实现改进的聚焦，并且在基于FFT的范围压缩之前应用于来自活动目标的接收信号以提取和显示高分辨率目标图像。 这种成像雷达在检测隐藏的武器或违禁品方面具有特殊的应用。

    High-resolution three-dimensional imaging radar
    7.
    发明授权
    High-resolution three-dimensional imaging radar 有权
    高分辨率三维成像雷达

    公开(公告)号：US07773205B2

    公开(公告)日：2010-08-10

    申请号：US12135040

    申请日：2008-06-06

    申请人： Ken B. Cooper ,  Goutam Chattopadhyay ,  Peter H. Siegel ,  Robert J. Dengler ,  Erich T. Schlecht ,  Imran Mehdi ,  Anders J. Skalare

    发明人： Ken B. Cooper ,  Goutam Chattopadhyay ,  Peter H. Siegel ,  Robert J. Dengler ,  Erich T. Schlecht ,  Imran Mehdi ,  Anders J. Skalare

    IPC分类号： G01C3/08 ,  G01S13/28

    CPC分类号： G01S13/89 ,  G01S13/34 ,  G01S13/887

    摘要： A three-dimensional imaging radar operating at high frequency e.g., 670 GHz, is disclosed. The active target illumination inherent in radar solves the problem of low signal power and narrow-band detection by using submillimeter heterodyne mixer receivers. A submillimeter imaging radar may use low phase-noise synthesizers and a fast chirper to generate a frequency-modulated continuous-wave (FMCW) waveform. Three-dimensional images are generated through range information derived for each pixel scanned over a target. A peak finding algorithm may be used in processing for each pixel to differentiate material layers of the target. Improved focusing is achieved through a compensation signal sampled from a point source calibration target and applied to received signals from active targets prior to FFT-based range compression to extract and display high-resolution target images. Such an imaging radar has particular application in detecting concealed weapons or contraband.

    摘要翻译： 公开了以高频例如670GHz操作的三维成像雷达。 雷达固有的有源目标照明通过使用亚毫米外差式混频器接收机解决了低信号功率和窄带检测问题。 亚毫米成像雷达可以使用低相位噪声合成器和快速啁啾来产生调频连续波（FMCW）波形。 通过针对在目标上扫描的每个像素导出的范围信息生成三维图像。 可以在每个像素的处理中使用峰值发现算法来区分目标的材料层。 通过从点源校准目标采样的补偿信号实现改进的聚焦，并且在基于FFT的范围压缩之前应用于来自活动目标的接收信号以提取和显示高分辨率目标图像。 这种成像雷达在检测隐藏的武器或违禁品方面具有特殊的应用。

    Multi-pixel high-resolution three-dimensional imaging radar
    10.
    发明授权
    Multi-pixel high-resolution three-dimensional imaging radar 有权
    多像素高分辨率三维成像雷达

    公开(公告)号：US08144052B2

    公开(公告)日：2012-03-27

    申请号：US12580210

    申请日：2009-10-15

    申请人： Ken B. Cooper ,  Robert J. Dengler ,  Peter H. Siegel ,  Goutam Chattopadhyay ,  John S. Ward ,  Nuria Llombart Juan ,  Tomas E. Bryllert ,  Imran Mehdi ,  Jan A. Tarsala

    发明人： Ken B. Cooper ,  Robert J. Dengler ,  Peter H. Siegel ,  Goutam Chattopadhyay ,  John S. Ward ,  Nuria Llombart Juan ,  Tomas E. Bryllert ,  Imran Mehdi ,  Jan A. Tarsala

    IPC分类号： G01S13/89 ,  G01C3/08

    CPC分类号： G01S13/89 ,  G01S7/024 ,  G01S7/03 ,  G01S7/35 ,  G01S13/34 ,  G01S13/87 ,  H01Q19/191 ,  H01Q19/195

    摘要： A three-dimensional imaging radar operating at high frequency e.g., 670 GHz radar using low phase-noise synthesizers and a fast chirper to generate a frequency-modulated continuous-wave (FMCW) waveform, is disclosed that operates with a multiplexed beam to obtain range information simultaneously on multiple pixels of a target. A source transmit beam may be divided by a hybrid coupler into multiple transmit beams multiplexed together and directed to be reflected off a target and return as a single receive beam which is demultiplexed and processed to reveal range information of separate pixels of the target associated with each transmit beam simultaneously. The multiple transmit beams may be developed with appropriate optics to be temporally and spatially differentiated before being directed to the target. Temporal differentiation corresponds to a different intermediate frequencies separating the range information of the multiple pixels. Collinear transmit beams having differentiated polarizations may also be implemented.

    摘要翻译： 公开了以高频率操作的三维成像雷达，例如使用低相位噪声合成器的670GHz雷达和用于产生调频连续波（FMCW）波形的快速啁啾声），其以多路波束操作以获得范围 信息同时在目标的多个像素上。 源发射波束可以被混合耦合器划分成多个复用在一起的多个发射波束并被引导为从目标反射并作为单个接收波束返回，该单个接收波束被解复用并被处理以显示与每一个相关联的目标的分离像素的范围信息 同时发射波束。 多个发射光束可以用合适的光学器件显影，以在被引导到目标之前在时间和空间上被区分。 时间微分对应于分离多个像素的范围信息的不同中间频率。 也可以实现具有差分极化的共线发射波束。