The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 20, 2011
Filed:
Jul. 24, 2008
Masakazu Ikeda, Warabi, JP;
Yusuke Tainaka, Warabi, JP;
Masakazu Ikeda, Warabi, JP;
Yusuke Tainaka, Warabi, JP;
Nippon Antena Kabushiki Kaisha, Tokyo, JP;
Abstract
Even though an antenna apparatus is low profile to have a height of not more than 70 mm, sensitivity is maximally suppressed from being deteriorated. In an antenna caseprojecting from a vehicle in a height of not more than 70 mm, an antenna circuit boardon which an antenna pattern is formed is uprightly arranged and an amplifier circuit boardwhich amplifies a received signal output from the antenna circuit boardare housed. In the antenna circuit board, an antenna coil to resonate the antenna pattern in an FM waveband is inserted between the antenna pattern and a feeding point. Therefore, a low-profile antenna pattern having a length which is about 1/20 a wavelength of an FM broadcast resonates the FM band.