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    • 25. 发明申请
    • Coaxial horn antenna system
    • 同轴喇叭天线系统
    • US20050088355A1
    • 2005-04-28
    • US10694469
    • 2003-10-27
    • Jay KralovecGriffin GothardTimothy Durham
    • Jay KralovecGriffin GothardTimothy Durham
    • H01Q13/00H01Q13/02H01Q19/19
    • H01Q13/0208H01Q13/0266H01Q19/19
    • An antenna feed system includes a plurality of RF horn antennas (201, 202) for operating on a plurality of RF frequency bands. A first one of the feed horns (202) can have a boresight axis and is configured for operating at a first one of the frequency bands. A second one of the feed horns (201) is positioned coaxially within the first one of the feed horns (202) and is configured for operating at least at a second one of the frequency bands. Further, the first one of the feed horns (202) is a corrugated horn that has a plurality of corrugations (204) formed on an interior surface defining a profile. The profile extends substantially from a throat (205) of the first feed horn and along a tapered portion of the first feed horn. The profile substantially minimizes an interaction of the corrugations with the second feed horn.
    • 天线馈送系统包括用于在多个RF频带上操作的多个RF喇叭天线(201,202)。 馈电喇叭(202)中的第一个可以具有视轴,并且被配置为在第一个频带中操作。 馈电喇叭(201)中的第二个同轴地位于馈电喇叭(202)的第一个之间,并且被配置用于至少在第二个频带上操作。 此外,馈电喇叭(202)中的第一个是波纹喇叭,其具有形成在限定轮廓的内表面上的多个波纹(204)。 该轮廓基本上从第一馈电喇叭的喉部(205)延伸并且沿着第一馈电喇叭的锥形部分延伸。 轮廓基本上使波纹与第二馈电喇叭的相互作用最小化。
    • 30. 发明申请
    • REFLECTOR ANTENNA SYSTEM INCLUDING A PHASED ARRAY ANTENNA OPERABLE IN MULTIPLE MODES AND RELATED METHODS
    • 包括在多模式下操作的相位阵列天线的反射器天线系统及相关方法
    • US20050237265A1
    • 2005-10-27
    • US10828690
    • 2004-04-21
    • Timothy DurhamJames Rawnick
    • Timothy DurhamJames Rawnick
    • H01Q3/26H01Q15/02H01Q19/13H01Q21/00H01Q21/06H01Q21/26H01Q25/00
    • H01Q25/007H01Q3/2658H01Q19/13H01Q21/0018H01Q21/0093H01Q21/062H01Q21/26
    • A reflector antenna system may include an arc-shaped antenna reflector defining a first antenna beam, and a phased array antenna positioned in the first antenna beam including first and second arrays of antenna elements coupled together in back-to-back relation. The first array may face the antenna reflector, and the second array may face away from it. A controller switchable between a reflecting mode and a direct mode may be connected to the arrays. The controller, when in the reflecting mode, may cause back-to-back pairs of first antenna elements from the arrays to define a feed-through zone for the first antenna beam, and cause second antenna elements in the first array to define a first active zone for the first antenna beam. Furthermore, when in the direct mode, the controller may cause antenna elements in the second array to define a second active zone for a second antenna beam.
    • 反射器天线系统可以包括限定第一天线波束的弧形天线反射器,以及定位在第一天线波束中的相控阵天线,包括以背靠背的关系耦合在一起的天线元件的第一和第二阵列。 第一阵列可以面向天线反射器,并且第二阵列可以面向远离它。 可以在反射模式和直接模式之间切换的控制器可以连接到阵列。 当处于反射模式时,控制器可以从阵列引起背对背对的第一天线元件,以限定第一天线波束的馈通区域,并且使得第一阵列中的第二天线元件限定第一天线元件 第一天线波束的活动区域。 此外,当处于直接模式时,控制器可以使第二阵列中的天线元件限定第二天线波束的第二有源区。