发明名称 Base station antenna arrangement.
摘要 An antenna for a base station comprising a plurality of antenna arrays (40; Fig. 6a) each capable of forming a multiplicity of separate overlapping narrow beams in azimuth, the arrays being positioned such that the beams formed by the arrays provide a coverage in azimuth wider than each array. Means are provided for splitting (58; Figs. 14b,14c) the transmission output of a given transceiver into two signals prior to transmission power amplification and transmitting said signals in two adjacent narrow overlapping beams. <IMAGE> <IMAGE>
申请公布号 EP0647983(A3) 申请公布日期 1995.06.28
申请号 EP19940120494 申请日期 1994.07.21
申请人 NORTHERN TELECOM LTD 发明人 SEARLE JEFFREY GRAHAM;COX CHRISTOPHER RICHARD
分类号 H01Q3/40;H01Q1/24;H01Q25/00;H01Q25/04;H04B7/04;H04B7/10;H04W16/28 主分类号 H01Q3/40
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