Modulated retroreflection system for secure communication and
identification
    1.
    发明授权
    Modulated retroreflection system for secure communication and identification 失效
    调制后向反射系统,用于安全通信和识别

    公开(公告)号:US5819164A

    公开(公告)日:1998-10-06

    申请号:US592934

    申请日:1996-01-29

    摘要: A modulated retroreflection system for secure two-way communication and identification includes a transceiver at a first location and a transponder at a second location. The transponder receiving, modulating, and reflecting the signal back to the transceiver includes a retroreflector having a at least one reflective surface coated with an electro-responsive material. The electro-responsive material modulating the reflection coefficient of the reflective surface thereby modulating signals reflected by the surface. The transponder further includes a modulator electrically connected to the electro-responsive material for applying a modulated bias voltage thereby modulating the refractive index and consequently the electrical phase, and/or amplitude of the reflected signal.

    摘要翻译: 用于安全双向通信和识别的调制后向反射系统包括在第一位置处的收发器和在第二位置处的应答器。 接收,调制和将信号反射回收发器的应答器包括具有涂覆有电响应材料的至少一个反射表面的回射器。 电响应材料调制反射表面的反射系数,从而调制由表面反射的信号。 应答器还包括电连接到电响应材料的调制器,用于施加调制的偏置电压,从而调制反射信号的折射率和因此的电相位和/或振幅。

    Radio frequency connector with integral dielectric coating for direct
current blockage
    2.
    发明授权
    Radio frequency connector with integral dielectric coating for direct current blockage 失效
    射频连接器,内置电介质涂层,用于直流阻塞

    公开(公告)号:US5796315A

    公开(公告)日:1998-08-18

    申请号:US673998

    申请日:1996-07-01

    摘要: The present invention is directed to an electrical connector for blocking direct current while permitting transmission of alternating currents. The connector includes a first connector member and a second connector member for matingly receiving the first connector member. The first connector member includes a first conductor and the second connector member having a second conductor. The first and second conductors are positioned adjacent to one another and spaced apart by a layer of dielectric material. The dielectric material provides capacitive coupling of alternating currents from one conductor to the other while preventing coupling of direct current from one to the other. It is an object of the present invention to provide an improved electrical connector with an integral dielectric coating for direct current blockage.

    摘要翻译: 本发明涉及一种用于在允许交流电流传输的同时阻断直流电的电连接器。 连接器包括第一连接器构件和用于配合地接收第一连接器构件的第二连接器构件。 第一连接器构件包括第一导体,第二连接器构件具有第二导体。 第一和第二导体彼此相邻设置,并被介电材料层隔开。 电介质材料提供从一个导体到另一个导体的交流电流的电容耦合,同时防止直流电流从一个导体耦合到另一个。 本发明的目的是提供一种具有用于直流阻塞的整体电介质涂层的改进的电连接器。

    Variable impedance transmission line and high-power broadband
reduced-size power divider/combiner employing same
    3.
    发明授权
    Variable impedance transmission line and high-power broadband reduced-size power divider/combiner employing same 失效
    可变阻抗传输线和大功率宽带小型功率分配器/组合器采用相同

    公开(公告)号:US5796317A

    公开(公告)日:1998-08-18

    申请号:US794128

    申请日:1997-02-03

    IPC分类号: H01P3/06 H01P5/16 H01P5/12

    CPC分类号: H01P5/16 H01P3/06

    摘要: A variable impedance coaxial transmission line having a center conductor of constant cross-section, an outer conductor surrounding and coaxial with the center conductor and spaced radially therefrom, and a variable dielectric constant material between the center conductor and the outer conductor. The variable dielectric constant material has a plurality of alternating elements of high dielectric material and low dielectric material arranged along the center conductor from a first end to a second end of the center conductor. The invention also includes a reduced size, high-power broadband power/divider incorporating the variable impedance coaxial transmission line.

    摘要翻译: 一种具有恒定横截面的中心导体的可变阻抗同轴传输线,围绕中心导体并与中心导体同轴并与其径向间隔开的外导体,以及在中心导体和外导体之间的可变介电常数材料。 可变介电常数材料具有多个高介电材料和低介电材料的交替元件,沿着中心导体从中心导体的第一端至第二端布置。 本发明还包括具有可变阻抗同轴传输线的减小尺寸的大功率宽带功率/分配器。