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    Antenna system for communicating simultaneously with satellite and terrestrial system
    2.
    发明专利
    Antenna system for communicating simultaneously with satellite and terrestrial system 审中-公开
    天线系统同时与卫星和地面系统进行通信

    公开(公告)号：JP2008236791A

    公开(公告)日：2008-10-02

    申请号：JP2008131056

    申请日：2008-05-19

    Applicant: Hrl Lab Llc ,  エイチアールエル ラボラトリーズ,エルエルシーHrl Laboratories, Llc

    Inventor： SIEVENPIPER DANIEL F ,  HSU HUI-PIN ,  SCHAFFNER JAMES H ,  TANGONAN GREGORY L

    IPC: H01Q21/24 ,  H01Q9/44 ,  H01Q13/08 ,  H01Q15/00 ,  H01Q21/26

    CPC classification number: H01Q21/26 ,  H01Q15/0013 ,  H01Q21/245

    Abstract: PROBLEM TO BE SOLVED: To accomplish a function capable of communicating with a satellite and/or a terrestrial system and a function capable of receiving radio frequency signals having circularly polarized waves and/or linearly and vertically polarized waves.
    SOLUTION: The present invention relates to an antenna system for receiving both circularly polarized radio wave signals and linearly polarized radio wave signals, the circularly polarized radio signals arriving at the antenna system from a direction normal or oblique to a major surface of the antenna system and the linearly polarized radio signals arriving at the planar antenna system from a direction acute to the major surface. The antenna system includes a high impedance surface and a plurality of antenna elements disposed on the high impedance surface, the plurality of antenna elements being arranged in such a pattern on the surface that first selected ones of the antenna elements are responsive to circular polarization and second selected ones of the antenna elements are responsive to linear polarization.
    COPYRIGHT: (C)2009,JPO&INPIT

    Abstract translation: 要解决的问题：实现能够与卫星和/或地面系统通信的功能以及能够接收具有圆偏振波和/或线性和垂直极化波的射频信号的功能。 解决方案：本发明涉及一种用于接收圆偏振无线电波信号和线偏振无线电波信号的天线系统，该圆极化无线电信号是从正交或倾斜于方向正交或倾斜的方向到达天线系统的圆极化无线电信号 天线系统和从尖锐到主表面的方向到达平面天线系统的线偏振无线电信号。 天线系统包括高阻抗表面和设置在高阻抗表面上的多个天线元件，多个天线元件以这样的图案布置在表面上，第一选择的天线元件响应于圆偏振和第二 所选择的天线元件响应于线偏振。 版权所有（C）2009，JPO＆INPIT

    A polarization converting radio frequency reflecting surface
    4.
    发明专利
    A polarization converting radio frequency reflecting surface 未知

    公开(公告)号：AU2735001A

    公开(公告)日：2001-09-17

    申请号：AU2735001

    申请日：2000-12-22

    Applicant: HRL LAB LLC

    Inventor： SIEVENPIPER DANIEL ,  HSU HUI-PIN

    IPC: H01Q15/10 ,  H01Q15/24

    Abstract: A polarization converting surface for reflecting impinging radio frequency waves. The surface includes a ground plane and a plurality of elements disposed in an array a distance from the ground plane. Each element is preferably connected to the ground plane by a conductor, the array of elements having two major axes associated therewith. The elements have a first bandwidth corresponding to a first range of frequencies were a first reflection phase falls between -pi/2 and +pi/2 in a first one of said two major axes and a second bandwidth corresponding to a second range of frequencies were a second reflection phase falls between -pi/2 and +pi/2 in a second one of said two major axes. The first and second bandwidths partially overlap and preferably an upper half of one of the bandwidths overlies a lower half of the other one of the bandwidths.

    Method and apparatus for controlling an antenna array
    5.
    发明专利
    Method and apparatus for controlling an antenna array 未知

    公开(公告)号：GB2391711B

    公开(公告)日：2004-08-11

    申请号：GB0323587

    申请日：2002-03-29

    Applicant: HRL LAB LLC

    Inventor： HSU HUI-PIN ,  HSU TSUNG-YUAN

    IPC: H01H59/00 ,  H01Q1/38 ,  H01Q3/24 ,  H01Q5/00 ,  H01Q9/28 ,  H01Q21/06 ,  H01Q3/00 ,  H01Q9/14 ,  H01Q13/10

    Abstract: A method and apparatus for reconfiguring an antenna array by optical control of MEMS switches. A light source is provided to direct light to individual optically sensitive elements which control delivery of actuating bias voltage to the MEMS switches. The light source is preferably separated from the antenna array by a structure which conducts the controlling illumination but provides a high impedance electromagnetically reflective surface which reflects electromagnetic radiation over the antenna operating frequency range with small phase shift, and which is disposed very close to the antenna array. Optically sensitive elements preferably include photoresistive elements, which are best formed in the substrate upon which the MEM switches are formed, and may include photovoltaic elements.

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