Invention Grant
- Patent Title: Antenna apparatus
-
Application No.: US13603775Application Date: 2012-09-05
-
Publication No.: US08502742B2Publication Date: 2013-08-06
- 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
- 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
- US20120326934A1 ANTENNA APPARATUS Public/Granted day:2012-12-27
Information query