Invention Grant
- Patent Title: Antenna device
- Patent Title (中): 天线设备
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Application No.: US13979371Application Date: 2012-01-12
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Publication No.: US08816917B2Publication Date: 2014-08-26
- Inventor: Mikio Ueno , Ryuichi Taira , Shin Matsumoto
- Applicant: Mikio Ueno , Ryuichi Taira , Shin Matsumoto
- Applicant Address: JP Tokyo
- Assignee: Harada Industry Co., Ltd.
- Current Assignee: Harada Industry Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Wells St. John P.S.
- Priority: JP2011-004231 20110112
- International Application: PCT/JP2012/050527 WO 20120112
- International Announcement: WO2012/096355 WO 20120719
- Main IPC: H01Q1/32
- IPC: H01Q1/32 ; H01Q1/36 ; H01Q5/00 ; H01Q11/08
Abstract:
A low profile antenna device for use in a vehicle comprises a base unit, and an antenna unit. The antenna unit is supported on the base unit, and is provided with a first helical unit on the side near to the base unit, and a second helical unit on the side far from the base unit. The second helical unit is configured such that the surface area is larger per unit length than that of the first helical unit.
Public/Granted literature
- US20130342405A1 Antenna Device Public/Granted day:2013-12-26
Information query
