公开(公告)号：EP1509970A4

公开(公告)日：2005-09-21

申请号：EP02807452

申请日：2002-05-16

申请人： EMS TECHNOLOGIES INC

发明人： ZIMMERMAN KURT ALAN ,  WANN JOHN ELLIOTT ,  FREEMAN ROBERT ALLEN ,  BLACK DONALD NELSON JR ,  MARSIK JAMES CHARLES

IPC分类号： H01Q17/00 ,  H01Q3/14 ,  H01Q3/16 ,  H01Q3/20 ,  H01Q19/06 ,  H01Q19/10

摘要： An antenna comprising a feed (42) for delivering electromagnetic energy to a rotatable combination of a dielectric lens (44) and a reflective surface (46). The combination of the dielectric lens and the reflective surface is placed proximate to and in front of an energy feed, such as a horn (42), to support the scanning of an antenna beam in response to rotation of the lens/reflective surface assembly. The lens typically comprises a dielectric material and the reflective surface can comprise a thin layer of material operable to reflect electromagnetic energy. For example, the lens can comprise a half-cylinder shape of dielectric material and the reflective surface can be applied to the flat portion of the half-cylindrical lens. Alternatively, the antenna can comprise two or more electromagnetic feeds (72a, 72b, 72c, 72d) and a cylindrical lens of dielectric material including a centrally embedded, two-sided reflective surface. A positioning system can be used to rotate the combination of the lens and the reflective material proximate to and in front of the electromagnetic feed(s).

摘要翻译： 一种包括馈送器（42）的天线，用于向电介质透镜（44）和反射表面（46）的可旋转组合传送电磁能。 介质透镜和反射表面的组合放置在能量馈源（例如喇叭（42））附近并位于其前面，以响应于透镜/反射表面组件的旋转而支持天线光束的扫描。 透镜通常包括电介质材料并且反射表面可以包括可操作以反射电磁能量的薄层材料。 例如，透镜可以包括半圆柱形状的介电材料，并且反射表面可以被应用于半圆柱形透镜的平坦部分。 或者，天线可以包括两个或更多个电磁馈电（72a，72b，72c，72d）以及包括中心嵌入的双面反射表面的介电材料的柱面透镜。 可以使用定位系统来旋转靠近电磁馈送器和电磁馈送器前方的透镜和反射材料的组合。