公开(公告)号：US5455594A

公开(公告)日：1995-10-03

申请号：US288659

申请日：1994-08-10

申请人： Raymond R. Blasing ,  Edwin F. Johnson ,  Douglas G. Lockie ,  Cliff Mohwinkel ,  Barry Whalen ,  Richard S. Withers

发明人： Raymond R. Blasing ,  Edwin F. Johnson ,  Douglas G. Lockie ,  Cliff Mohwinkel ,  Barry Whalen ,  Richard S. Withers

IPC分类号： H01Q1/36 ,  H01Q1/40 ,  H01Q15/00 ,  H01Q1/38 ,  H01Q15/24

CPC分类号： H01Q1/40 ,  H01Q1/364 ,  H01Q15/0013

摘要： An array antenna includes a means of thermally isolating the feed network from the space illuminated by the antenna. Filtering layers are incorporated into the structure between the feed and the radiating patches. These filtering layers are transparent to radiation in the frequency range of operation of the antenna, primarily microwaves and millimeter waves, but reflect much shorter wavelengths such as infrared and visible light. This rejection of short wavelengths results in reduced heating of the feed network and so to a reduced heat load on a cooling system. One preferred embodiment employs the radiation shield to advantage by incorporating superconductive elements in the antenna. These elements can be cooled efficiently enough to be practical due to the rejection of heat by the incorporated filtering layers.

摘要翻译： 阵列天线包括将馈电网与由天线照射的空间热隔离的装置。 过滤层结合在进料和散热片之间的结构中。 这些滤波层对于天线的操作频率范围（主要是微波和毫米波）而言对于辐射是透明的，但是反射了更短的波长，例如红外和可见光。 这种短波长的抑制导致进料网络的加热减少，从而降低冷却系统上的热负荷。 一个优选实施例通过在天线中引入超导元件来利用辐射屏蔽。 这些元件由于被内置的过滤层的排斥而能够被有效地冷却到实用。