发明名称 |
Antenna device and radio receiver using the same |
摘要 |
In antenna device which is to be used in a portable radio receiver, plural loop antennas 1 and 3 which are formed along different faces of a case 9 of the radio receiver, respectively, and switching means 5 for selecting one of received signals from the plural loop antennas are disposed. Reception is performed while selecting a loop antenna having a higher received signal level. When an antenna having the directivity or the plane of polarization which are more advantageous is selected, it is possible to ensure high reception performance.
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申请公布号 |
US6154177(A) |
申请公布日期 |
2000.11.28 |
申请号 |
US19980146895 |
申请日期 |
1998.09.03 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
SAITO, YUTAKA;KOU, NOZOMI;NAKANISHI, HIDEO |
分类号 |
H01Q3/24;H01Q1/24;H01Q1/36;H01Q1/38;H01Q1/40;H01Q7/00;H04B7/08;H04B7/10;H04B7/26;(IPC1-7):H01Q1/24 |
主分类号 |
H01Q3/24 |
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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