发明名称 |
ANTENNA SYSTEM WITH VARIABLE DIRECTIVITY |
摘要 |
<p>An antenna system is disclosed which has a loop antenna divided into n conductive members at n pairs of divisional points where n is a positive integer not smaller than 2, n feeders connected to the n pairs of divisional points respectively, a signal feeding point, and at least one impedance element. In this case, electrical switching circuits are connected between the n feeders and the impedance element, and an electrical control circuit is connected to the electrical switching circuits for selectively connecting the feeding point to one of the n feeders and at the same time for selectively connecting the impedance element to another of the n feeders, so that the directivity characteristic of the antenna system is variable controlled.</p> |
申请公布号 |
CA1128654(A) |
申请公布日期 |
1982.07.27 |
申请号 |
CA19790342185 |
申请日期 |
1979.12.18 |
申请人 |
SONY CORPORATION |
发明人 |
TADA, MASAHIRO;ISHIGAKI, YOSHIO;OUCHI, KOJI;NAKAMICHI, KOYA |
分类号 |
H01Q3/00;H01Q3/24;H01Q7/00;H01Q9/26;(IPC1-7):01Q3/24 |
主分类号 |
H01Q3/00 |
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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