发明名称 ANTENNA APPARATUS
摘要 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.
申请公布号 US2013176180(A1) 申请公布日期 2013.07.11
申请号 US201313774107 申请日期 2013.02.22
申请人 HARADA INDUSTRY CO., LTD.;HARADA INDUSTRY CO., LTD. 发明人 WAKUI MASASHI;KAMIYA AKIO;ARAYAMA NOBUO
分类号 H01Q1/36;H01Q1/24;H01Q1/42 主分类号 H01Q1/36
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