Invention Grant
- Patent Title: Antenna apparatus
- Patent Title (中): 天线装置
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Application No.: US12735199Application Date: 2009-03-19
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Publication No.: US08497807B2Publication Date: 2013-07-30
- Inventor: Masashi Wakui , Akio Kamiya , Nobuo Arayama
- Applicant: Masashi Wakui , Akio Kamiya , Nobuo Arayama
- Applicant Address: JP Tokyo
- Assignee: Harada Industry Co., Ltd.
- Current Assignee: Harada Industry Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Oliff & Berridge, PLC
- Priority: JP2008-181545 20080711
- International Application: PCT/JP2009/001231 WO 20090319
- International Announcement: WO2010/004671 WO 20100114
- Main IPC: H01Q1/1271
- IPC: H01Q1/1271

Abstract:
An antenna apparatus that can suppress sensitivity degradation as much as possible to receive AM broadcasts and FM broadcasts even if an antenna height is decreased to 70 mm or less. An antenna board is vertically mounted on a planar antenna base, and a top portion is disposed to stride over the antenna board. An antenna element includes the top portion and an antenna pattern formed on the antenna board. A distance between the antenna base and a lower edge of the top portion is not less than 10 mm, and the lower edge of the top portion is bent downward. The top portion is configured such that an antenna capacitance of the antenna element becomes about 3 pF or more. A received signal from the antenna element is guided to an amplifier board through a connecting wire and amplified. An antenna case is fitted in the antenna base.
Public/Granted literature
- US20100265147A1 ANTENNA APPARATUS Public/Granted day:2010-10-21
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