发明名称 |
Retractable radiotelephone antennas and associated radiotelephone communication methods |
摘要 |
A multi-piece retractable radiotelephone antenna and associated communication method is employed to provide improved signal quality. The multi-piece antenna includes conductive windings, such as helical quadrafillar windings, disposed separately on two slidably cooperating substrate members. The antenna is mechanically extended to a deploy position and the separate windings are electrically connected thereby doubling the effective electrical length of the antenna.
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申请公布号 |
US5907306(A) |
申请公布日期 |
1999.05.25 |
申请号 |
US19960777042 |
申请日期 |
1996.12.30 |
申请人 |
ERICSSON INC. |
发明人 |
KARABINIS, PETER D.;MA, YAWEI;REINHOLD, STANLEY L. |
分类号 |
H01Q1/24;H01Q1/36;H01Q9/14;H01Q11/08;(IPC1-7):H01Q1/24 |
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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