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:
Aug. 08, 2006
Filed:
Feb. 22, 2005
Shuichiro Yamaguchi, Miyazaki-gun, JP;
Keisuke Maruyama, Koyu-gun, JP;
Hiromi Tokunaga, Miyazaki-gun, JP;
Kazuhiro Eguchi, Miyazaki, JP;
Shuichiro Yamaguchi, Miyazaki-gun, JP;
Keisuke Maruyama, Koyu-gun, JP;
Hiromi Tokunaga, Miyazaki-gun, JP;
Kazuhiro Eguchi, Miyazaki, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
This invention provides an antenna module comprising: a helical antennaincluding a baseand a pair of terminalsand a helical area formed on the base; a power supplyfor supplying power to one of the pair of terminalsof the helical antenna; an opening connected to the other of the pair of terminals; an antenna substrateon which the antennais mounted; a grounding areaformed in the vicinity of the power supply; and a peripheral conductorformed at least a portion on the periphery of the antenna substrate, wherein the peripheral length of the peripheral conductorformed on the periphery of the antenna substrateis nearly integer times as long as ¼ wavelength of a resonance frequency.