发明名称 |
Surface-mounted antenna and communications apparatus comprising same |
摘要 |
A surface-mounted antenna comprising a substrate made of a high-dielectric constant material having a dielectric constant µ r of 6 or more, a ribbon-shaped radiation electrode having one end which is grounded and the other end which is open, a grounding electrode connected or capacitance-coupled to one end of the radiation electrode, and a current-feeding electrode in a portal shape formed on a side surface separate from the radiation electrode with a gap; the current-feeding electrode having a current-feeding portion at one end, a grounding portion at the other end, and a portion substantially in alignment with the radiation electrode between them; and the length of the aligning portion, a gap width or a portal shape being able to be properly set such that capacitance owned by the current-feeding electrode and inductance can be adjusted for easily achieving impedance matching.
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申请公布号 |
EP1770826(A2) |
申请公布日期 |
2007.04.04 |
申请号 |
EP20060025365 |
申请日期 |
2002.06.14 |
申请人 |
HITACHI METALS, LTD. |
发明人 |
AOYAMA, HIROYUKI;KIKUCHI, KEIKO;TAKAKI, YASUNORI;HAGIWARA, HIDETOSHI |
分类号 |
H01Q1/38;H01Q1/24;H01Q1/36;H01Q9/04;H01Q9/40;H01Q9/42 |
主分类号 |
H01Q1/38 |
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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