Photonic semiconductor electromagnetic limiter
    2.
    发明授权
    Photonic semiconductor electromagnetic limiter 失效
    光子半导体电磁限制器

    公开(公告)号:US07750753B1

    公开(公告)日:2010-07-06

    申请号:US12174990

    申请日:2008-07-17

    IPC分类号: H03G11/00 H03H7/38

    CPC分类号: H01P3/08 H01L31/162

    摘要: A system includes a source of electromagnetic energy or power and an amplitude-sensitive circuit. An amplitude-limiting transmission line couples the source to the circuit. The transmission line includes a semiconductor in the field of the transmission line and a light source for illuminating the semiconductor with light responsive to the amplitude from the source. Application of energy or power to the light source illuminates the semiconductor, which produces a plasma. The plasma tends to attenuate the energy or power reaching the circuit.

    摘要翻译: 一种系统包括电磁能量或功率源以及幅度敏感电路。 限幅传输线将源耦合到电路。 传输线包括传输线领域的半导体和用于根据来自源的振幅来用光照射半导体的光源。 将能量或功率施加到光源照射产生等离子体的半导体。 等离子体倾向于衰减到达电路的能量或功率。

    Multibit phase shifter with active and passive phase bits, and active phase bit therefor
    3.
    发明授权
    Multibit phase shifter with active and passive phase bits, and active phase bit therefor 失效
    具有有源和无源相位的多位移相器及其相位位

    公开(公告)号:US07173503B1

    公开(公告)日:2007-02-06

    申请号:US10901525

    申请日:2004-07-29

    IPC分类号: H01P9/00 H01P1/18

    CPC分类号: H01P1/18

    摘要: An RF phase shifter includes the cascade of active and passive RF phase shift bits, having different phase increments. The active phase shift bit includes a FET with source and drain. First and second RF single-pole, double throw switches have their common elements coupled to the source and drain, respectively, for selectively connecting one of the in-phase source signals and out-of-phase drain signals to a third switch, and for coupling the non-selected signal to a reference. The third switch outputs the available signal. Additional phase increments may be included to achieve phase shifts or differences other than 180°.

    摘要翻译: RF移相器包括有源和无源RF相移位的级联,具有不同的相位增量。 有源相移位包括源极和漏极的FET。 第一和第二RF单极双掷开关分别具有耦合到源极和漏极的共同元件,用于将同相源极信号和异相漏极信号之一选择性地连接到第三开关,并且 将未选择的信号耦合到参考。 第三个开关输出可用的信号。 可以包括额外的相位增量以实现180°以外的相移或差异。

    Magnetic flux-enhanced control line for superconducting flux flow
transistor
    4.
    发明授权
    Magnetic flux-enhanced control line for superconducting flux flow transistor 失效
    超导磁通流量晶体管磁通增强控制线

    公开(公告)号:US5338943A

    公开(公告)日:1994-08-16

    申请号:US115502

    申请日:1993-09-01

    摘要: A magnetic flux-enhanced control line for a superconducting flux flow transistor (SFFT). The SFFT includes a pair of superconducting electrodes which provide a voltage output, a region of weakened superconductor connecting the electrodes and a control line. The region of weakened superconductor carries a current I.sub.body and the control line carries a current I.sub.Control. The control line further has a portion thereof proximate the weakened region for providing a localized magnetic field through the weakened region as a function of I.sub.Control. The magnetic flux through the weakened region induces vortices therein which have a resistance r.sub.o. The proximate portion of the control line forms a tortuous current path whereby the magnetic flux through the weakened region is increased for increasing r.sub.o so that the output voltage of the transistor is increased without increasing I.sub.Control.

    摘要翻译: 一种用于超导磁通流量晶体管(SFFT)的磁通增强控制线。 SFFT包括提供电压输出的一对超导电极,连接电极的弱化超导体区域和控制线。 弱化超导体的区域带有电流I控制线,并且控制线承载当前的IControl。 控制线还具有靠近弱化区域的部分,用于通过作为IControl的函数的弱化区域提供局部磁场。 通过弱化区域的磁通量在其中引起具有电阻ro的涡流。 控制线的最近部分形成曲折电流路径,由此通过弱化区域的磁通量增加以增加ro,从而在不增加IControl的情况下增加晶体管的输出电压。

    Low-loss, wide bandwidth limiter
    5.
    发明授权
    Low-loss, wide bandwidth limiter 失效
    低损耗,宽带宽限制器

    公开(公告)号:US5585330A

    公开(公告)日:1996-12-17

    申请号:US370591

    申请日:1995-01-09

    摘要: A high-temperature superconductor (HT.sub.c S) in a microstrip configurat which is electrically related to a superconducting coupler and which is controlled by a heater disposed over the superconducting microstrip line. This limiter configuration is used in a series configuration with other circuitry and utilizes the low loss characteristics of the HT.sub.c S material and the wide bandwidth characteristics of microstrip. The structure itself is a five layer microstrip geometry which includes a normal metal ground plane; a dielectric substrate disposed on the metal ground plane; a superconducting microstrip transmission disposed on the substrate; a dielectric film layer disposed on the superconducting microstrip; and a heating element disposed on the dielectric film layer and over the superconducting microstrip.

    摘要翻译: 一种微带结构的高温超导体(HTcS),其与超导耦合器电气相关,并且由设置在超导微带线上的加热器控制。 该限幅器配置用于与其他电路的串联配置,并利用HTCS材料的低损耗特性和微带宽的宽带宽特性。 该结构本身是包括正常金属接地平面的五层微带几何形状; 设置在金属接地平面上的电介质基片; 设置在所述基板上的超导微带传输装置; 设置在超导微带上的电介质膜层; 以及设置在电介质膜层上和超导微带上的加热元件。

    Low phase noise high speed digital divider
    6.
    发明授权
    Low phase noise high speed digital divider 有权
    低相位噪声高速数字分频器

    公开(公告)号:US07952399B1

    公开(公告)日:2011-05-31

    申请号:US12355872

    申请日:2009-01-19

    IPC分类号: H03B19/00

    CPC分类号: H03K23/425 H03K19/09421

    摘要: A frequency divider circuit includes a master-slave flip-flop having a master flip-flop and a slave flip-flop. The slave flip-flop is connected to the master flip-flop. The master flip-flop includes a first plurality of logic gates and is configured to receive a first clock signal. The slave flip-flop includes a second plurality of logic gates and is configured to receive a second clock signal. The second plurality of logic gates is implemented using single-ended diode-transistor logic (DTL).

    摘要翻译: 分频器电路包括具有主触发器和从触发器的主从触发器。 从触发器连接到主触发器。 主触发器包括第一多个逻辑门,并且被配置为接收第一时钟信号。 从触发器包括第二多个逻辑门,并且被配置为接收第二时钟信号。 使用单端二极管晶体管逻辑(DTL)来实现第二多个逻辑门。

    Antenna with layered ground plane
    7.
    发明授权
    Antenna with layered ground plane 失效
    分层地平面天线

    公开(公告)号:US06943735B1

    公开(公告)日:2005-09-13

    申请号:US10783082

    申请日:2004-02-20

    IPC分类号: H01Q1/38

    摘要: An antenna structure for solid-state fabrication includes a ground plane comprising a stack of a plurality of planar conductors, each having its broad surfaces adjacent to, but insulated from, adjacent planar conductors. At least one edge of each conductor of the stack is registered with like edges of other conductors to define a discontinuous surface. A radiating element is spaced from the surface. Through vias extend between the conductors of the stack to form a conductive matrix. A feed for the radiating element extends toward, but does not contact, the matrix.

    摘要翻译: 用于固态制造的天线结构包括接地平面,该接地平面包括多个平面导体的叠层,每个平面导体的宽表面邻近但邻近的平面导体绝缘。 堆叠的每个导体的至少一个边缘与其它导体的相似边缘配准以限定不连续表面。 辐射元件与表面间隔开。 通孔在堆叠的导体之间延伸以形成导电矩阵。 用于辐射元件的馈电件向矩阵延伸但不接触。

    Doppler radar speed measuring unit
    8.
    发明授权
    Doppler radar speed measuring unit 失效
    多普勒雷达测速装置

    公开(公告)号:US06091355A

    公开(公告)日:2000-07-18

    申请号:US120013

    申请日:1998-07-21

    摘要: A Doppler radar speed measuring module, that is self-contained and handheld, is fabricated on a multilayer PCB (printed circuit board) containing at least one antenna array and electronic circuitry. In one embodiment the antenna array is located on a top side and electronic circuitry is located on a bottom side opposite the antenna, with a ground plane layer sandwiched between the antenna array and the circuitry. The electronic circuitry includes a dielectric resonator stabilized oscillator, a microwave amplifier, a microwave mixer, a microwave coupler, voltage regulators, mechanical switches, and a display to indicate the measured speed of a moving target. The oscillator generates a very stable microwave signal which is split with part of the signal fed to a mixer and part fed to a transmit antenna. In one embodiment plated through vias electrically connect the two sides together. A transmitted signal reflects off of a moving target and is received by a receive antenna. The receive signal is electrically conducted from the receive antenna to the opposite side by plated through vias and is mixed with the oscillator signal to produce a low frequency Doppler beat signal. The Doppler signal is amplified, filtered and digitized by the A/D. A microcontroller is programmed to determine the moving target speed from the Doppler signal frequency, and drive a display to show the result.

    摘要翻译: 在包含至少一个天线阵列和电子电路的多层PCB(印刷电路板)上制造一个独立式和手持式的多普勒雷达测速模块。 在一个实施例中,天线阵列位于顶侧,电子电路位于与天线相对的底侧上,其中接地平面层夹在天线阵列和电路之间。 电子电路包括介质谐振器稳定振荡器,微波放大器,微波混频器,微波耦合器,稳压器,机械开关和用于指示所测量的移动目标的速度的显示器。 振荡器产生非常稳定的微波信号,该信号被部分信号分配给混频器,部分馈送到发射天线。 在通过通孔电镀的一个实施例中,将两侧电连接在一起。 发射信号从移动目标反射并被接收天线接收。 接收信号通过通孔通过电镀而从接收天线导电到相对侧,并且与振荡器信号混合以产生低频多普勒拍频信号。 多普勒信号通过A / D进行放大,滤波和数字化。 微控制器被编程以从多普勒信号频率确定移动目标速度,并驱动显示器以显示结果。

    Superconducting ring resonator microwave oscillator for operating as a
remote temperature sensor
    9.
    发明授权
    Superconducting ring resonator microwave oscillator for operating as a remote temperature sensor 失效
    超导环形谐振器微波振荡器用作远程温度传感器

    公开(公告)号:US5309117A

    公开(公告)日:1994-05-03

    申请号:US5692

    申请日:1993-01-19

    IPC分类号: G01K7/00 H03B5/18

    摘要: A remote temperature sensor includes a microwave oscillator which generatesn output signal having a frequency which is proportional to the temperature of the environment in which it is located. The oscillator includes a relatively high transition temperature superconducting (HTSC) ring coupled to a transistor in a plurality of microstrip line oscillator configurations including those of a reaction oscillator, a transmission oscillator, a reflection oscillator and a parallel feedback oscillator. The superconducting ring operates below its transition temperature and in so doing, acts as a high Q resonator whose resonant frequency is proportional to temperature.

    摘要翻译: 远程温度传感器包括微波振荡器,该微波振荡器产生具有与其所在环境的温度成比例的频率的输出信号。 振荡器包括耦合到多个微带线振荡器配置中的晶体管的相对较高的转变温度超导(HTSC)环,包括反应振荡器,发送振荡器,反射振荡器和并联反馈振荡器。 超导环工作在其转变温度以下,这样做可以起到高谐振频率与谐振频率成正比的高Q谐振器的作用。

    Microwave oscillator using a ring resonator and operable as a remote
temperature sensor
    10.
    发明授权
    Microwave oscillator using a ring resonator and operable as a remote temperature sensor 失效
    微波振荡器采用环形谐振器,可作为远程温度传感器使用

    公开(公告)号:US5115210A

    公开(公告)日:1992-05-19

    申请号:US687601

    申请日:1991-04-15

    IPC分类号: G01K5/52 H03B5/18

    摘要: An ambient condition sensor is embodied in an oscillator which generates an output signal having a frequency which is proportional to the ambient condition of the environment in which it is located. The oscillator includes a ring resonator consisting of a metallic ring located in the output plane of a grounded source gallium arsenide MESFET type transistor oscillator formed on a temperature sensitive dielectric substrate. The circumference of the ring is directly related to the ring resonator's resonant frequency. More particularly, the circumference of the ring is a multiple of the wavelength of the oscillator's output signal. Such a device permits unmanned, remote and inexpensive temperature sensing in places generally unsuited for operator presence.

    摘要翻译: 环境条件传感器体现在振荡器中,该振荡器产生具有与其所在环境的环境条件成比例的频率的输出信号。 振荡器包括环形谐振器,该环形谐振器由位于感温电介质基板上形成的接地源极砷化镓MESFET型晶体管振荡器的输出平面中的金属环组成。 环的圆周与环形谐振器的谐振频率直接相关。 更具体地,环的圆周是振荡器的输出信号的波长的倍数。 这样的设备允许在通常不适合操作者存在的地方进行无人驾驶,远程和便宜的温度感测。