DROOPY BOWTIE RADIATOR WITH INTEGRATED BALUN
    102.
    发明申请
    DROOPY BOWTIE RADIATOR WITH INTEGRATED BALUN 审中-公开
    带有集成巴龙的DROOPY BOWTIE散热器

    公开(公告)号:WO2011152988A1

    公开(公告)日:2011-12-08

    申请号:PCT/US2011/036735

    申请日:2011-05-17

    CPC classification number: H01P5/10 H01Q9/28 H01Q21/062 H01Q21/26

    Abstract: An antenna element (10) and a quad- line balun column (12) are described. The antenna includes a plurality of droopy bowtie antenna elements (10) disposed on dielectric block (16) and a feed point. The quad-line balun column (12) includes a central member having dielectric slabs symmetrically disposed on external surfaces thereof. At least one end of the balun is provided having a shape such that conductors on the dielectric slabs of the balun can be coupled to the droopy bowtie antenna elements. The quad- line balun column is mechanically stable facilitates the assembly, and provides coincident phase centres for orthogonal dipoles. Thze antenna element provides broad bandwidth, high cross -polarization isolation characteristic and is mechanically stable.

    Abstract translation: 描述了天线元件(10)和四线平衡 - 不平衡转换器(12)。 天线包括设置在介电块(16)和馈电点上的多个下降弓形天线元件(10)。 四行平衡 - 不平衡转换柱(12)包括具有对称地设置在其外表面上的电介质板的中心构件。 平衡 - 不平衡转换器的至少一端被提供有使得平衡 - 不平衡转换器的电介质板上的导体可以耦合到下垂天线元件的形状。 四线平衡 - 不平衡转换柱机械稳定便于组装,并为正交偶极子提供重合的相位中心。 Thze天线元件提供宽带宽,高交叉极化隔离特性,并且机械稳定。

    SEARCH AND RESCUE METHOD AND SYSTEM
    104.
    发明申请
    SEARCH AND RESCUE METHOD AND SYSTEM 审中-公开
    搜索和恢复方法和系统

    公开(公告)号:WO2011133974A2

    公开(公告)日:2011-10-27

    申请号:PCT/US2011/033785

    申请日:2011-04-25

    Abstract: A method for locating a transmitter using a receiver which include, but are not limited to the steps of transmitting a plurality of distinctive and orthogonally polarized signals from a transmitter; receiving the transmitted signals at a pair of separated antennas; demodulating the distinctive orthogonal signals received at each of the pair of separated antennas; and determining a direction to the transmitter from the signals received at the pair of antennas. The system for determining the location of a transmitter using a receiver includes, but is not limited to, having a transmitter adapted for orthogonally transmitting a plurality of distinctive signals; a receiver having a pair of separated antennas for receiving the orthogonally transmitted signals; separate demodulators in the receiver for each antenna of the pair of separated antennas for demodulating the distinctive signals; and signal processing circuitry in the receiver adapted for using the demodulated distinctive signals for determining a direction to the transmitter.

    Abstract translation: 一种用于使用接收机定位发射机的方法,包括但不限于从发射机发送多个不同的和正交极化信号的步骤; 在一对分离的天线处接收发送的信号; 解调在所述一对分离天线中的每一个处接收的所述不同的正交信号; 以及根据在所述一对天线处接收的信号确定到所述发射机的方向。 用于使用接收机确定发射机的位置的系统包括但不限于具有适于正交发射多个不同信号的发射机; 具有一对分离天线的接收机,用于接收正交发射的信号; 用于解调不同信号的分离天线对中的每个天线的接收机中的单独的解调器; 以及接收器中的信号处理电路,其适于使用解调的特征信号来确定发射机的方向。

    GLOBAL COMPUTER NETWORK SELF-TUTORING SYSTEM
    107.
    发明申请

    公开(公告)号:WO2008121323A8

    公开(公告)日:2008-10-09

    申请号:PCT/US2008/004061

    申请日:2008-03-28

    Abstract: A global computer network method and apparatus for creating and deploying many types of self-tutoring systems across many different platforms is disclosed. A run time engine supports several types of tutorials, in both a client and server context. A Builder enables development and testing of tutorials, formed of teacher composed problems, or an existing approved problems set, or student-user composed problems. The system simplifies the process of tutorial construction to allow educators and students with little or no ITS experience to develop content of problems and teaching strategies (i.e., format of problems including hints, messages and sequencing of related problems). The system provides a Web based interface as a means to build and store these tutorials. A web based reporting component allows for live database reporting to teachers, showing how students are performing. A testing component is web based and allows a teacher to test the quality of student composed problems. Further, the testing component allows addition of the student content to the existing approved problem set as is pertinent. Automated analysis and reporting of experimental tutorials developed by either teacher or student is included.

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