Mobile radio antenna

专利名称：Mobile radio antenna

发明人：Yamabayashi, Masaaki,Ogawa, Koichi,Yuda,

Naoki

申请号：EP97112302.1申请日：19970717公开号：EP0820116A3公开日：19991027

专利附图：

摘要：Although conventional antennas have characteristics suitable for mobile radiobase stations, their vertical dimension is large, and locations of their installation arelimited. A radiator for an first upper antenna 32 is arranged in a hollow nonconductive

radome 2, using an internal conductor 7a and a metal pipe 10. A radiator for a secondlower antenna 34 is arranged in the radome 2, using metal pipes 14 and 15. Two parasiticelements 31 are installed substantially in parallel with the first antenna 32 below afeeding point 9. Two parasitic elements 33 are installed substantially in parallel with thesecond antenna 34 above a feeding point 13. These allow the tilt angle to be freely setbetween -10° and +10° by adjusting the parasitic element length and the antenna to bereduced in size.

申请人：MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

地址：1006, Oaza Kadoma Kadoma-shi, Osaka 571 JP

国籍：JP

代理机构：Grünecker, Kinkeldey, Stockmair & Schwanhäusser Anwaltssozietät

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