发明名称 |
Dual-frequency antenna |
摘要 |
An umbrella-shaped crown section 5a is provided on the front end of a linear element section 5b. The front end of the umbrella-shaped crown section 5a and the power supply section 6a at the lower end of the element section 5b are connected by means of a folded element 5c. Thereby, the dual-frequency antenna 5 is able to operate in two different frequency bands.
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申请公布号 |
US6693596(B2) |
申请公布日期 |
2004.02.17 |
申请号 |
US20020111331 |
申请日期 |
2002.04.23 |
申请人 |
NIPPON ANTENA KABUSHIKI KAISHA |
发明人 |
WAKUI MASASHI;SHIMIZU HIROSHI |
分类号 |
H01Q1/22;H01Q1/32;H01Q1/42;H01Q5/00;H01Q5/01;H01Q9/36;(IPC1-7):H01Q9/00 |
主分类号 |
H01Q1/22 |
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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