发明授权
US4625212A Double loop antenna for use in connection to a miniature radio receiver
失效
用于连接微型无线电接收机的双环天线
- 专利标题： Double loop antenna for use in connection to a miniature radio receiver
- 专利标题（中）： 用于连接微型无线电接收机的双环天线
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申请号： US590617申请日： 1984-03-19
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公开(公告)号： US4625212A公开(公告)日： 1986-11-25
- 发明人: Takashi Oda , Koji Yamasaki
- 申请人： Takashi Oda , Koji Yamasaki
- 申请人地址： JPX Tokyo
- 专利权人： NEC Corporation
- 当前专利权人： NEC Corporation
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX58-45315 19830319; JPX58-45316 19830319
- 主分类号： H01Q7/00
- IPC分类号： H01Q7/00 ; H01Q1/24 ; H01Q1/27
摘要：
An antenna having an antenna aperture area and an antenna reactance comprises a first antenna element (31) defining a first aperture area and a first reactance and a second antenna element (32) connected in parallel to the first antenna element to put a miniature radio receiver into operation in a desired frequency band. The second antenna element has a second aperture area and a second reactance greater than the first aperture area and reactance, respectively, so that the antenna aperture area and reactance are substantially determined by the second aperture area and the first reactance, respectively. The first and the second aperture areas may be coplanar. Alternatively, the aperture areas may be orthogonal to each other.
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