发明名称 Mobile apparatus with plurality of antennas having different directivities
摘要 In a mobile apparatus for communication with a satellite, a plurality of antennas having different directivities from each other are provided. A selector circuit is connected between a transmitter circuit and the antennas to select and connect one of the antennas to the transmitter circuit. A control section controls the selector circuit in accordance with a reflected power detected from one of the antennas.
申请公布号 US6297780(B1) 申请公布日期 2001.10.02
申请号 US19990295388 申请日期 1999.04.21
申请人 NEC CORPORATION 发明人 KIRISAWA AKIHIRO
分类号 H04B7/26;H01Q1/36;H01Q3/24;H01Q11/08;H04B7/06;H04B7/155;(IPC1-7):G01R1/24 主分类号 H04B7/26
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