发明名称 |
Directional coupler, antenna device, and transmitting-receiving device |
摘要 |
A directional coupler including a first transmission line and a second transmission line adjacent to the first transmission line, the relative positions of the first transmission line and the second transmission line being changeable, an antenna element connected to a part of the directional coupler, and a driving mechanism for driving the directional coupler and the antenna element.
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申请公布号 |
US6433741(B2) |
申请公布日期 |
2002.08.13 |
申请号 |
US19990346601 |
申请日期 |
1999.07.02 |
申请人 |
MURATA MANUFACTURING CO., LTD. |
发明人 |
TANIZAKI TORU;TAKAKUWA IKUO;NAGAI TOMOHIRO;HIGASHI KAZUTAKA |
分类号 |
H01P3/08;G01S7/03;G01S7/28;H01P5/04;H01P5/18;H01Q3/08;(IPC1-7):H01Q1/32 |
主分类号 |
H01P3/08 |
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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