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专利名称：Antenna system with multiple feeders
integrated in a low noise converter (LNC)
发明人：LOUZIR, 1-M. ALI申请号：EP95402265.3申请日：19951009公开号：EP0707357B1公开日：20030102
摘要：The receiver includes a focussing device which can be an electromagnetic lense.g. Luneberg lens or parabolic reflector. A first feed (3b) is placed at the focus of thereflector and other feeds (3a,3c) are placed on either side of it. The feeds are slotantennae which are pref. in annular form. The receiver multiplexes (18-21) the incomingsignals to a frequency converter (11-13,f1,f2) which is formed on the same substrate (17)as the feeds. The multiplexer can consist of voltage controlled blocking amplifiers andthe frequency converter blocks can be an RF amplifier, mixer (12) and IF amplifier (13).
申请人：THOMSON MULTIMEDIA,THOMSON MULTIMEDIA SA,THOMSONMULTIMEDIA
地址：FR
国籍：FR
代理机构：Zhang, Jianguo
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