发明名称 |
ANTENNENVORRICHTUNG |
摘要 |
A small antenna device having a wide frequency band suitable for being built in mobile communications apparatuses. This antenna device includes a planar radiating element (radiating plate) and a grounding plate provided in parallel to and facing the radiating plate. A feeding line is disposed at approximately the end center of the radiating plate, and supplies high-frequency signals. A shorting portion shorts the radiating plate and grounding plate at near the feeding line. A slit is provided at an end face of the radiating plate approximately opposing the feeding line to form two resonators. A coupling level between two resonators is optimized by adjusting the shape or dimensions of this slit, or loading a reactance element or conductive plate on this slit. Accordingly, a small and short antenna with a preferred characteristic is achieved. <IMAGE> |
申请公布号 |
DE60223515(D1) |
申请公布日期 |
2007.12.27 |
申请号 |
DE2002623515 |
申请日期 |
2002.03.15 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO. LTD. |
发明人 |
FUKUSHIMA, SUSUMU;YUDA, NAOKI |
分类号 |
H01Q13/08;H01Q1/24;H01Q5/00;H01Q9/04 |
主分类号 |
H01Q13/08 |
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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