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    • 1. 发明申请
    • LOW PROFILE ACTIVE ELECTRONICALLY SCANNED ANTENNA (AESA) FOR KA-BAND RADAR SYSTEMS
    • 用于KA-BAND雷达系统的低剖面有源电子扫描天线(AESA)
    • WO2004073113A1
    • 2004-08-26
    • PCT/US2004/002982
    • 2004-02-03
    • NORTHROP GRUMMAN CORPORATIONSTENGER, Peter, A.KUSS, Fred, C.LACOUR, KevinHEFFNER, CraigSISK, RobertWISE, Carl, D.PAQUIN, JosephHINTON, TujuanaWALTERS, AndrewKRAFCSIK, DavidMCMONAGLE, Brian, T.BLOCK, Steven, D.HANDLEY, Steve
    • STENGER, Peter, A.KUSS, Fred, C.LACOUR, KevinHEFFNER, CraigSISK, RobertWISE, Carl, D.PAQUIN, JosephHINTON, TujuanaWALTERS, AndrewKRAFCSIK, DavidMCMONAGLE, Brian, T.BLOCK, Steven, D.HANDLEY, Steve
    • H01Q21/00
    • H01P5/085H01P1/047H01P1/268H01P5/107H01Q1/422H01Q3/26H01Q21/0037H01Q21/0087H01Q21/064H01Q23/00
    • A vertically integrated Ka-band active electronically scanned antenna including, among other things, a transitioning RF waveguide relocator panel (69) located behind a radiator faceplate (68) and an array of beam control tiles (60) respectively coupled to one of a plurality of transceiver modules (32) via an RF manifold (52). Each of the beam control tiles (60) includes a respective plurality of high power transmit/receive (T/R) cells (166) as well as dielectric waveguides (123), RF stripline (174) and coaxial transmission line elements (186). The waveguide relocator panel (69) is preferably fabricated by a diffusion bonded copper laminate stack up with dielectric filling. The beam control tiles (60) are preferably fabricated by the use of multiple layers of low temperature co-fired ceramic (LTCC) material laminated together. The waveguide relocator panel (69) and the beam control tiles (60) are designed to route RF signals to and from a respective transceiver module of four transceiver modules (32) and a quadrature array of antenna radiators (67) matched to free space formed in the faceplate (68). Planar type metal spring gaskets (78, 82) are provided between the interfacing layers so as to provide and ensure interconnection between mutually facing waveguide ports and to prevent RF leakage from around the perimeter of the waveguide ports. Cooling of the various components is achieved by a pair of planar forced air heat sink members (76, 86) which are located on either side of the array of beam control tiles (60). DC power and control of the T/R cells is provided by a printed circuit wiring board assembly (84) located adjacent to the array of beam controlled tiles (60) with solderless DC connections being provided by an arrangement of "fuzz button" electrical connector elements (80).
    • 一种垂直集成的Ka波段有源电子扫描天线,其特别包括位于散热器面板(68)后面的转换RF波导重定位板(69)和分别耦合到多个 的收发器模块(32)经由RF歧管(52)。 每个波束控制瓦片(60)包括相应的多个高功率发射/接收(T / R)单元(166)以及介质波导(123),RF带状线(174)和同轴传输线元件(186) 。 波导重新定位器面板(69)优选地由具有电介质填充物的扩散接合的铜层叠体制成。 束控制瓦(60)优选地通过使用层压在一起的多层低温共烧陶瓷(LTCC)材料制成。 波导重定位板(69)和波束控制瓦片(60)被设计成将RF信号路由到四个收发器模块(32)的相应收发器模块和与形成的自由空间匹配的天线辐射器(67)的正交阵列 在面板(68)中。 平面型金属弹簧垫圈(78,82)设置在接口层之间,以便提供和确保相互面对的波导端口之间的互连并且防止来自波导端口周边的RF泄漏。 通过一对平面的强制空气散热构件(76,86)来实现各种部件的冷却,所述平面强制空气散热构件位于束控制瓦片阵列的任一侧上。 直流电源和T / R单元的控制由位于波束控制瓦片(60)阵列附近的印刷电路布线板组件(84)提供,无焊直流连接由“模糊按钮”电连接器 元素(80)。