发明名称 |
Low profile antenna assembly for use in cellular communications |
摘要 |
The low profile antenna assembly comprises a generally rectangular frame member housing a planar antenna. A radar absorbing material is attached to the front side of the housing with a radome covering the front side of the planar antenna and attached to the frame member. The planar antenna is a microstrip array fed by a beam forming network that uses either delay lines or phase shifters to electronically steer the antenna pattern horizontally and vertically. The antenna assembly is weatherproofed, painted and flush mounted against a building surface for camouflaging the antenna assembly from observers at a distance.
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申请公布号 |
US6025803(A) |
申请公布日期 |
2000.02.15 |
申请号 |
US19980045559 |
申请日期 |
1998.03.20 |
申请人 |
NORTHERN TELECOM LIMITED |
发明人 |
BERGEN, SCOTT P.;ROBERTSON, FREDERICK A. |
分类号 |
H01Q1/24;H01Q1/38;H01Q3/36;H01Q3/40;H01Q21/06;(IPC1-7):H01Q1/38 |
主分类号 |
H01Q1/24 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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