发明名称 |
Antenna device having an adjustable frequency |
摘要 |
An antenna device includes an antenna and a transmission element. The antenna includes a grounding element and a radiating element. The radiating element is connected to the grounding element and is provided with a plurality of spaced apart feeding portions. The transmission element is connected selectively to one of said feeding portions. When the transmission element is connected to one of the feeding portions, the radiating element operates in a distinct frequency.
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申请公布号 |
US2009256764(A1) |
申请公布日期 |
2009.10.15 |
申请号 |
US20080082262 |
申请日期 |
2008.04.09 |
申请人 |
UNIVERSAL SCIENTIFIC INDUSTRIAL CO., LTD. |
发明人 |
LEE CHENG-TA;CHIEN JUI-CHIH |
分类号 |
H01Q9/00 |
主分类号 |
H01Q9/00 |
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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