发明授权
- 专利标题: Antenna structure including radiating conductor and magnetic material having dielectric property
- 专利标题(中): 天线结构包括具有介电性质的辐射导体和磁性材料
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申请号: US11511621申请日: 2006-08-29
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公开(公告)号: US08410989B2公开(公告)日: 2013-04-02
- 发明人: Masatoshi Hayakawa , Kiyotada Yokogi , Yoshimi Takahashi , Kenji Asakura , Shuichi Goto
- 申请人: Masatoshi Hayakawa , Kiyotada Yokogi , Yoshimi Takahashi , Kenji Asakura , Shuichi Goto
- 申请人地址: JP Tokyo
- 专利权人: Sony Corporation
- 当前专利权人: Sony Corporation
- 当前专利权人地址: JP Tokyo
- 代理机构: The Chicago Technology Law Group, LLC
- 代理商 Robert J. Depke
- 优先权: JP2005-253081 20050901
- 主分类号: H01Q1/00
- IPC分类号: H01Q1/00 ; H01Q1/38
摘要:
An antenna for receiving electromagnetic waves in a desired frequency band, includes a radiating conductor and a ground conductor, a feeder part, a wavelength-shortening section, and a magnetic field applying section. The radiating conductor and a ground conductor resonate at a resonance point frequency. The feeder part is configured to feed the radiating conductor with electricity. The wavelength-shortening section in which a magnetic body having both a dielectric property and a magnetic property is disposed close to the radiating conductor shifts the resonance point frequency into a band lower than the desired frequency band by a wavelength-shortening effect obtained based on the dielectric property and the magnetic property. The magnetic field applying section is configured to apply a magnetic field to the magnetic body so as to reduce a magnetic loss due to the magnetic body.
公开/授权文献
- US20070080866A1 Antenna 公开/授权日:2007-04-12