Invention Grant
- Patent Title: Tunable antenna device and radio apparatus
- Patent Title (中): 可调谐天线装置和无线电装置
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Application No.: US12001196Application Date: 2007-12-10
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Publication No.: US07675469B2Publication Date: 2010-03-09
- Inventor: Isao Ohba , Satoshi Mizoguchi , Hiromichi Suzuki , Koichi Sato
- Applicant: Isao Ohba , Satoshi Mizoguchi , Hiromichi Suzuki , Koichi Sato
- Applicant Address: JP Tokyo
- Assignee: Kabushiki Kaisha TOSHIBA
- Current Assignee: Kabushiki Kaisha TOSHIBA
- Current Assignee Address: JP Tokyo
- Agency: Frishauf, Holtz, Goodman & Chick, P.C.
- Priority: JP2007-119698 20070427
- Main IPC: H01Q1/38
- IPC: H01Q1/38
Abstract:
An antenna device configured to be fed at a feed portion included in a printed board of a radio apparatus is provided. The antenna device has a feed element connected to the feed portion. The antenna device has a first parasitic element at least a portion of which is arranged close and electrically coupled to at least a portion of the feed element. The first parasitic element is loaded with a first frequency shifter. The antenna device has a second parasitic element at least a portion of which is arranged close and electrically coupled to at least a portion of the feed element. The second parasitic element is loaded with a second frequency shifter.
Public/Granted literature
- US20080266190A1 Tunable antenna device and radio apparatus Public/Granted day:2008-10-30
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