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    • 1. 发明申请
    • MICROWAVE SELF-PHASING ANTENNA ARRAYS FOR SECURE DATA TRANSMISSION & SATELLITE NETWORK CROSSLINKS
    • 用于安全数据传输和卫星网络交换机的微波自相位天线阵列
    • WO2005020445A3
    • 2005-11-10
    • PCT/US2004025326
    • 2004-08-04
    • UNIV HAWAI I
    • MIYAMOTO RYAN YSHIROMA WAYNE ASHIROMA GRANT SMURAKAMI BLAINE TOHTA AARONTAMAMOTO MICHAEL
    • H01Q1/22H01Q1/28H01Q3/26G01S3/16H01Q1/00
    • H04K3/825H01Q1/22H01Q1/288H01Q3/2652H04K3/226H04K3/28H04K3/43H04K3/92H04K2203/14H04K2203/18H04K2203/20H04K2203/32Y02A40/298
    • A high-directivity transponder system uses a dual system of a retrodirective array transmitting a data signal peak toward an interrogator source, and a self-null-steering array transmitting a null toward the interrogator source and a jamming signal elsewhere, resulting in high S/N reception at the interrogator source and avoidance of interception. Integrating modulators would allow each array to transmit different data while the spectra of the transmitted signals are identical, thus disabling interception. The system enables secure point-to-point communications and can be used for short-distance wireless data transmission systems such as wireless LAN and RFID servers. As another aspect, self-steering signal transmission is employed for randomly oriented satellites using circularly polarized, two-dimensional retrodirective arrays. Quadruple subharmonic mixing is used as an effective means of achieving phase conjugation when a high-frequency LO is not feasible or inapplicable. These features may be used for small-satellite communications, secure tactical communications, search and rescue, enemy location fixing and tracking, UAV command and control, forest fire detection, marine-based tracking, and many other applications requiring secure communications with high signal directivity.
    • 高方向性转发器系统使用向询问器源发送数据信号峰值的逆向阵列的双重系统,以及向询问器源发送零的自归零转向阵列和其他地方的干扰信号,导致高S / N接收询问器来源并避免拦截。 集成调制器将允许每个阵列传输不同的数据,而传输的信号的频谱是相同的,因此禁用截取。 该系统实现安全的点对点通信,可用于短距离无线数据传输系统,如无线局域网和RFID服务器。 作为另一方面,使用圆偏振二维逆向阵列的随机取向卫星采用自我转向信号传输。 当高频LO不可行或不适用时,四次次谐波混合被用作实现相位共轭的有效手段。 这些功能可用于小卫星通信,安全的战术通信,搜索和救援,敌方定位和跟踪,无人机指挥和控制,森林火灾探测,海洋跟踪等许多其他需要高信号方向性安全通信的应用 。