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1. 发明申请

WO1998007210A1 DIELECTRICALLY LOADED WIDE BAND FEED 审中-公开
标题翻译：电介质装载宽带饲料
公开(公告)号：WO1998007210A1
公开(公告)日：1998-02-19
申请号：PCT/US1997013990
申请日：1997-08-08
申请人： L-3 COMMUNICATIONS CORPORATION
发明人： L-3 COMMUNICATIONS CORPORATION , ANDERSON, Bryant, Ford , YAMAMOTO, Mark, Johnathon , ULMER, Douglas, Harry
IPC分类号： H01Q13/00
CPC分类号： H01P1/161 , H01Q5/47 , H01Q13/02 , H01Q19/08
摘要： A feed system for an antenna has a set of inner and outer coaxial waveguides (70, 66) which apply, respectively, both higher and lower frequency radiations to a common radiating aperture provided by a horn (68) and a shroud (62) which envelopes radiating apertures of the individual feed waveguides. Lower frequency radiation to be transmitted by the outer coaxial feed waveguide is applied thereto by a set of four waveguides of a launcher (72). Each of the launch waveguides is initially a rectangular double-ridged waveguide for increase bandwidth. Impedance matching rings (160) are slidable within the space between the inner and outer surfaces of the coaxial waveguide for development of a desired standing wave ratio for accurate generation of a desired beam pattern. A dielectric rod (144) is disposed in a forward end of the tube of the inner feed waveguide and protrudes therefrom into the horn for shaping a beam of the higher frequency radiation.
摘要翻译：用于天线的馈送系统具有一组内部和外部同轴波导（70,66），其分别将高频和低频辐射施加到由喇叭（68）和护罩（62）提供的公共辐射孔信封辐射各个馈电波导的孔。由外部同轴馈电波导传输的较低频率的辐射由发射器（72）的一组四个波导施加到其上。每个发射波导最初是一个矩形双脊形波导，用于增加带宽。阻抗匹配环（160）可以在同轴波导的内表面和外表面之间的空间内滑动，以形成期望的驻波比，从而精确地产生期望的波束图案。介电棒（144）设置在内馈电波导的管的前端，并从其中突出到喇叭中，以形成较高频辐射的波束。

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