公开(公告)号：WO1998029940A1

公开(公告)日：1998-07-09

申请号：PCT/US1997023566

申请日：1997-12-29

Applicant: MILLITECH CORPORATION

Inventor： MILLITECH CORPORATION ,  SIMONUTTI, Mario, D.

IPC: H03B05/18

CPC classification number: H03F3/608 ,  H03F2200/198

Abstract: An electromagnetic radiation reflection amplifier capable of amplifying cw or pulsed signals has a pair of cw oscillators (20, 22) operated under injection locking conditions. Diversion of oscillator power to a separate signal path during the off time of the input pulse is achieved through purely passive means; no active control devices are utilized. The device can be implemented for amplification of microwave, millimeter wave or optical signals. The amplifier comprises a 180 DEG hybrid coupler (10), a matched pair of cw oscillator modules (20, 22), a waveguide discontinuity (36), a waveguide termination (26), and an optional signal input element. For a magic-tee hybrid coupler, the cw oscillator modules are mounted on the ports of the symmetrically positioned waveguide arms (16, 17) and the waveguide discontinuity (36) is located within either the sum arm or difference waveguide arm intermediate its ends. The waveguide termination is located at the port (14) of that arm, and the port (11) of the other non-symmetric arm of the magic-tee becomes the input/output port.

Abstract translation: 能够放大cw或脉冲信号的电磁辐射反射放大器具有在注射锁定条件下操作的一对cw振荡器（20,22）。 在输入脉冲的关闭时间内将振荡器功率转移到单独的信号路径通过纯粹的无源装置实现; 没有使用主动控制装置。 该器件可以实现微波，毫米波或光信号的放大。 放大器包括180°混合耦合器（10），匹配的一对cw振荡器模块（20,22），波导不连续（36），波导终端（26）和可选的信号输入元件。 对于魔术三通混合耦合器，cw振荡器模块安装在对称定位的波导臂（16,17）的端口上，并且波导不连续（36）位于和臂或差分波导臂中间的末端。 波导终端位于该臂的端口（14）处，并且魔术T的另一非对称臂的端口（11）变为输入/输出端口。

公开(公告)号：WO1990007130A1

公开(公告)日：1990-06-28

申请号：PCT/US1989003421

申请日：1989-08-10

Applicant: MILLITECH CORPORATION

Inventor： MILLITECH CORPORATION ,  HUGUENIN, G., Richard ,  GOLDSMITH, Paul, F. ,  WALKER, David, K. ,  DEO, Naresh, C.

IPC: G01S13/89

CPC classification number: G01S13/887 ,  G01S7/025 ,  G01S7/41 ,  G01S13/89 ,  G01V8/005 ,  H01Q3/46 ,  H01Q13/085

Abstract: Millimeter-wave imaging elements and systems are disclosed. The system components may be used for navigation in fog or for other purposes, including a contraband detection system especially suited for detecting concealed non-magnetic and non-metallic contraband such as ceramic or plastic weapons or illegal drugs. In this embodiment of the invention, plural sources (110) of quasi-coherent millimeter wave radiation are disposed so as to uniformly illuminate a field of view. The radiation emitted by the sources may be linearly polarized in a single plane such that the polarization of the radiation with respect to the plane in which linearly polarized radiation is preferentially received by the detectors can be controlled. For detection of dielectric objects, such as ceramic weapons or narcotics, these planes of polarization should be orthogonal to one another. The detector is a staring array (36) which does not require scanning to generate an image of the entire field of view.

Abstract translation: 公开了毫米波成像元件和系统。 系统组件可用于雾化或其他目的的导航，包括特别适用于检测隐藏的非磁性和非金属违禁品如陶瓷或塑料武器或非法药物的违禁检测系统。 在本发明的这个实施例中，配置准相干毫米波辐射的多个源（110），以均匀地照亮视场。 由源发射的辐射可以在单个平面中线性极化，使得辐射相对于其中线偏振辐射优先被检测器接收的平面的极化可以被控制。 为了检测诸如陶瓷武器或麻醉品之类的介电物体，这些极化平面应该彼此正交。 检测器是一个凝视阵列（36），不需要扫描来生成整个视野的图像。

公开(公告)号：WO1989004496A1

公开(公告)日：1989-05-18

申请号：PCT/US1988003954

申请日：1988-11-04

Applicant: MILLITECH CORPORATION

Inventor： MILLITECH CORPORATION ,  HUGUENIN, G., Richard ,  GOLDSMITH, Paul, F. ,  DEO, Naresh, C. ,  WALKER, David, K.

IPC: G01S13/89

CPC classification number: G01S13/89 ,  G01S7/024 ,  G01V8/005

Abstract: A millimiter wave sensing device is disclosed comprising a local oscillator source (26) generating a millimeter wave signal which is mixed with millimeter wave radiation reflected from or emitted by objects in a field of view. The mixing is performed in a staring array (36) of mixer/detector elements (8) which need not be mechanically or electronically scanned to generate signals responsive to the entire field of view. In a first embodiment of the invention, the device detects millimiter wave radiation emitted by or reflected from the object to be imaged. In a second embodiment of the invention, the oscillator (26) used to provide the local oscillator signal is also used to illuminate the field of view. In the second embodiment of the invention, the oscillator signal is preferably linearly polarized, and a polarizing grid (28) is used to separate the local oscillator signal and illumination beam and direct them in a simple and efficient manner. A twist reflector (50) may also be used to rotate the polarization of a portion of the beam to direct it onto the mixer/detector array for mixing with the received signal from the field of view. Improved constructions of millimeter wave source and mixer/detector elements are also disclosed, which greatly simplify construction of the device.

Abstract translation: 公开了一种毫米波感测装置，其包括产生毫米波信号的本地振荡器源（26），所述毫米波信号与在视场中的对象反射或发射的毫米波辐射混合。 在混合器/检测器元件（8）的凝视阵列（36）中执行混合，其不需要机械地或电子地扫描以响应于整个视场而产生信号。 在本发明的第一实施例中，该装置检测要被成像的物体发射或反射的毫米波辐射。 在本发明的第二实施例中，用于提供本地振荡器信号的振荡器（26）也用于照亮视场。 在本发明的第二实施例中，振荡器信号优选是线性极化的，并且偏振栅极（28）用于分离本地振荡器信号和照明光束，并以简单而有效的方式引导它们。 扭转反射器（50）还可以用于旋转光束的一部分的偏振，以将其引导到混合器/检测器阵列上，以便与来自视野的接收信号混合。 还公开了毫米波源和混频器/检测器元件的改进的结构，这大大简化了器件的结构。

公开(公告)号：WO1995018980A1

公开(公告)日：1995-07-13

申请号：PCT/US1995000099

申请日：1995-01-05

Applicant: MILLITECH CORPORATION

Inventor： MILLITECH CORPORATION ,  HUGUENIN, George, R. ,  MOORE, Ellen, L.

IPC: G01S13/00

CPC classification number: G01V8/005 ,  G01S7/032 ,  G01S13/34 ,  H01Q15/248 ,  H01Q19/062

Abstract: Compact microwave and millimeter wave radars operating at 77 GHz and having resolution of no less than 3.2 meters at a distance of 100 meters. The exemplary dimensions of the radars are 145 millimeters in diameter and 100 or 85 millimeters long. The antenna of the radars employs folded optic design, with the actual focal length of the radar being less than that of the lens (105) in the antenna alone.

Abstract translation: 紧凑型微波和毫米波雷达，工作在77 GHz，分辨率不低于3.2米，距离为100米。 雷达的示例性尺寸为直径为145毫米，长度为100或85毫米。 雷达的天线采用折叠光学设计，雷达的实际焦距小于天线中的透镜（105）的实际焦距。

公开(公告)号：WO1992021993A1

公开(公告)日：1992-12-10

申请号：PCT/US1992004475

申请日：1992-05-29

Applicant: MILLITECH CORPORATION

Inventor： MILLITECH CORPORATION ,  STEPHAN, Karl, D.

IPC: G01S13/89

CPC classification number: G01S13/89 ,  G01S7/024

Abstract: An apparatus (10) for the selective transmission or reflection of incident electromagnetic radiation. The apparatus (10) comprises a plurality of dielectric substrates (12, 14, 16) combined so as to form a stack, wherein at least two of the substrates (12, 14) comprise conductive elements (24) extending in first and second directions on a surface (18, 13) of the substrates and at least one of the substrates (12) includes diodes (28) which connect adjacent conductive elements (24) in at least the first direction. The apparatus (10) is electronically controllable between a reflection mode and a transmission mode, wherein in the reflection mode the diodes (28) are reverse-biased and electromagnetic radiation incident on the apparatus (10) is substantially reflected and in the transmission mode the diodes (28) are forward-biased and incident electromagnetic radiation is substantially transmitted. The physical dimensions of the conductive elements (24) of the substrate (12) comprising the diodes (28) are such that in the reflection mode, the apparatus (10) substantially appears as a perfect conductor with respect to the incident energy.