FOCUSSING DEVICE FOR A MICROWAVE ANTENNA

申请公布号：WO9007199(A1)

申请号：WO1989GB01506

申请日期：1989.12.18

申请公布日期：1990.06.28

申请人：

MAWZONES DEVELOPMENTS LIMITED

发明人：WRIGHT, THOMAS, MICHAEL, BENYON

分类号：H01Q1/12;H01Q15/02;H01Q19/06

主分类号：H01Q1/12

摘要：A focussing device for a microwave antenna comprises a zone plate(1) which is all transparent to visible light whereby the device can be used as a window without unduly adversely affecting the passage of visible light through the window.

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