发明名称 Stratospheric platforms communication system using adaptive antennas
摘要 A communication system has a high altitude device having an adaptive antenna with a plurality of main array antenna elements for generating a plurality of communication beams. The system further includes a gateway station coupled to the high altitude device. The gateway station forms a plurality of beams commands by communicating a plurality of control signals to the high altitude device station to form the communication beams.
申请公布号 US7809403(B2) 申请公布日期 2010.10.05
申请号 US20010858989 申请日期 2001.05.15
申请人 THE DIRECTV GROUP, INC. 发明人 CHANG DONALD C. D.;LIM WAH L.;CHANG MING U.
分类号 H04M1/00;H01Q1/24;H01Q3/26;H01Q25/00;H04B7/04;H04B7/185;H04B7/204;H04W16/26;H04W16/28;H04W88/08 主分类号 H04M1/00
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