Multi sector antenna

专利名称：Multi sector antenna

发明人：Seki, Tomohiro,Uehara, Kazuhiro,Kagoshima,

Kenichi

申请号：EP97400831.0申请日：19970411公开号：EP0802579A2公开日：19971022

专利附图：

摘要：A small sized multi sector antenna having a plurality of sectors or elementantennas each having related directivity in horizontal plane so that one of the elementantennas is selected for providing desired beam direction has been found. Each of the

element antennas is planar or in flat disc shaped, and is, for instance, a micro-stripantenna. Each of the element antennas is located in vertical plane, and each elementantenna is positioned at different height from one another so that each element antennadoes not overlap with other element antennas in vertical direction. A central vertical axisof the sector antenna is defined and the element antennas are positioned with axialsymmetrical relations relating to said axis.

申请人：NIPPON TELEGRAPH AND TELEPHONE CORPORATION

地址：19-2, Nishi-Shinjuku 3-chome, Shinjuku-ku Tokyo 160 JP

国籍：JP

代理机构：Dubois-Chabert, Guy

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