| 发明名称 |
Variable-pitch helical antenna, and corresponding method |
| 摘要 |
A helical antenna includes at least a helix consisting of at least two radiating strands, at least one of the strands consisting of at least two segments, the winding angles of at least two of the segments being different and randomly or pseudo-randomly determined with global optimising means.
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| 申请公布号 |
US6836257(B2) |
申请公布日期 |
2004.12.28 |
| 申请号 |
US20030363518 |
申请日期 |
2003.03.03 |
| 申请人 |
FRANCE TELECOM |
发明人 |
LOUVIGNE JEAN-CHRISTOPHE;SHARAIHA ALA;BLOT JEAN-PIERRE |
| 分类号 |
H01Q21/24;H01Q1/38;H01Q11/08;(IPC1-7):H01Q1/36 |
主分类号 |
H01Q21/24 |
| 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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