Invention Grant
US07714787B2 Antenna, and wireless module, wireless unit and wireless apparatus having the antenna
有权
天线和无线模块，具有天线的无线单元和无线设备
- Patent Title: Antenna, and wireless module, wireless unit and wireless apparatus having the antenna
- Patent Title (中): 天线和无线模块，具有天线的无线单元和无线设备
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Application No.: US11448128Application Date: 2006-06-07
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Publication No.: US07714787B2Publication Date: 2010-05-11
- Inventor: Satoshi Adachi , Makoto Katagishi , Ikuo Murata , Masumi Iwamura , Ken Takei , Takahiro Sugiyama , Yohei Shirakawa
- Applicant: Satoshi Adachi , Makoto Katagishi , Ikuo Murata , Masumi Iwamura , Ken Takei , Takahiro Sugiyama , Yohei Shirakawa
- Applicant Address: JP Tokyo JP Iwate JP Tokyo
- Assignee: Hitachi, Ltd.,Hitachi Media Electronics Co., Ltd.,Hitachi Cable, Ltd.
- Current Assignee: Hitachi, Ltd.,Hitachi Media Electronics Co., Ltd.,Hitachi Cable, Ltd.
- Current Assignee Address: JP Tokyo JP Iwate JP Tokyo
- Agency: McDermott Will & Emery LLP
- Priority: JP2005-166671 20050607
- Main IPC: H01Q1/24
- IPC: H01Q1/24
Abstract:
In an antenna that has high sensitivity to frequencies of narrow bands and over a wide band and that can be small-sized, and in a wireless module, wireless unit and wireless apparatus using this antenna, the antenna is comprised of a transmission line, and variable capacitance means connected to this transmission line, and the variable capacitance means controls the resonant frequency.
Public/Granted literature
- US20060279469A1 Antenna, and wireless module, wireless unit and wireless apparatus having the antenna Public/Granted day:2006-12-14
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