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    Dielectric covered planar antennas
    1.
    发明授权
    Dielectric covered planar antennas 有权
    电介质覆盖的平面天线

    公开(公告)号：US08780012B2

    公开(公告)日：2014-07-15

    申请号：US12828068

    申请日：2010-06-30

    申请人： Nuria Llombart Juan ,  Choonsup Lee ,  Goutam Chattopadhyay ,  John J. Gill ,  Anders J. Skalare ,  Peter H. Siegel

    发明人： Nuria Llombart Juan ,  Choonsup Lee ,  Goutam Chattopadhyay ,  John J. Gill ,  Anders J. Skalare ,  Peter H. Siegel

    IPC分类号： H01Q19/06

    CPC分类号： H01Q19/09 ,  G01N21/3581 ,  H01Q19/06 ,  H01Q21/06

    摘要： An antenna element suitable for integrated arrays at terahertz frequencies is disclosed. The antenna element comprises an extended spherical (e.g. hemispherical) semiconductor lens, e.g. silicon, antenna fed by a leaky wave waveguide feed. The extended spherical lens comprises a substantially spherical lens adjacent a substantially planar lens extension. A couple of TE/TM leaky wave modes are excited in a resonant cavity formed between a ground plane and the substantially planar lens extension by a waveguide block coupled to the ground plane. Due to these modes, the primary feed radiates inside the lens with a directive pattern that illuminates a small sector of the lens. The antenna structure is compatible with known semiconductor fabrication technology and enables production of large format imaging arrays.

    摘要翻译： 公开了适用于以太赫兹频率集成的阵列的天线元件。 天线元件包括延伸的球形（例如半球形）半导体透镜。 硅，由漏波波导馈电馈送的天线。 延伸的球面透镜包括与基本上平面的透镜延伸部相邻的基本上球形的透镜。 通过耦合到接地平面的波导块，在接地平面和基本上平面的透镜延伸部之间形成的谐振腔中激发了一对TE / TM泄漏波模式。 由于这些模式，主要的馈送在镜头内辐射出一个照亮镜头小部分的指示图案。 天线结构与已知的半导体制造技术兼容，并且能够生产大幅面成像阵列。

    DIELECTRIC COVERED PLANAR ANTENNAS
    2.
    发明申请
    DIELECTRIC COVERED PLANAR ANTENNAS 有权
    电介质平面天线

    公开(公告)号：US20100328779A1

    公开(公告)日：2010-12-30

    申请号：US12828068

    申请日：2010-06-30

    申请人： Nuria Llombart Juan ,  Choonsup Lee ,  Goutam Chattopadhyay ,  John J. Gill ,  Anders Skalare ,  Peter H. Siegel

    发明人： Nuria Llombart Juan ,  Choonsup Lee ,  Goutam Chattopadhyay ,  John J. Gill ,  Anders Skalare ,  Peter H. Siegel

    IPC分类号： G02B27/12 ,  G02B3/00 ,  C03C15/00

    CPC分类号： H01Q19/09 ,  G01N21/3581 ,  H01Q19/06 ,  H01Q21/06

    摘要： An antenna element suitable for integrated arrays at terahertz frequencies is disclosed. The antenna element comprises an extended spherical (e.g. hemispherical) semiconductor lens, e.g. silicon, antenna fed by a leaky wave waveguide feed. The extended spherical lens comprises a substantially spherical lens adjacent a substantially planar lens extension. A couple of TE/TM leaky wave modes are excited in a resonant cavity formed between a ground plane and the substantially planar lens extension by a waveguide block coupled to the ground plane. Due to these modes, the primary feed radiates inside the lens with a directive pattern that illuminates a small sector of the lens. The antenna structure is compatible with known semiconductor fabrication technology and enables production of large format imaging arrays.

    摘要翻译： 公开了适用于以太赫兹频率集成的阵列的天线元件。 天线元件包括延伸的球形（例如半球形）半导体透镜。 硅，由漏波波导馈电馈送的天线。 延伸的球面透镜包括与基本上平面的透镜延伸部相邻的基本上球形的透镜。 通过耦合到接地平面的波导块，在接地平面和基本上平面的透镜延伸部之间形成的谐振腔中激发了一对TE / TM泄漏波模式。 由于这些模式，主要的馈送在镜头内辐射出一个照亮镜头小部分的指示图案。 天线结构与已知的半导体制造技术兼容，并且能够生产大幅面成像阵列。

    MULTI-PIXEL HIGH-RESOLUTION THREE-DIMENSIONAL IMAGING RADAR
    3.
    发明申请
    MULTI-PIXEL HIGH-RESOLUTION THREE-DIMENSIONAL IMAGING RADAR 有权
    多像素高分辨三维成像雷达

    公开(公告)号：US20100090887A1

    公开(公告)日：2010-04-15

    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： G01S13/90

    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个相关联的目标的单独像素的范围信息 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。

    Multi-pixel high-resolution three-dimensional imaging radar
    4.
    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。

    HIGH-RESOLUTION THREE-DIMENSIONAL IMAGING RADAR
    5.
    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
    6.
    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。

    670 GHz Schottky diode based subharmonic mixer with CPW circuits and 70 GHz IF
    8.
    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。