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:
Apr. 22, 2008
Filed:
Jan. 17, 2003
Hiroshi Iwai, Kantano, JP;
Atsushi Yamamoto, Osaka, JP;
Kenichi Yamada, Yokohama, JP;
Shinji Kamaeguchi, Kadoma, JP;
Hiroshi Iwai, Kantano, JP;
Atsushi Yamamoto, Osaka, JP;
Kenichi Yamada, Yokohama, JP;
Shinji Kamaeguchi, Kadoma, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
For a PDC (Personal Digital Cellular) folding cellular phone that uses, for example, an 800-MHz band for communication, it is desirable to reduce a height of an antenna apparatus in order to reduce a thickness of the cellular phone. An antenna apparatus including an antenna element having a feeding plate, a ground plate arranged opposite the antenna element, a short circuit section that connects the antenna element and the ground plate together, and one or more ground wires each connected to the ground plate at a predetermined position and each having a (1) linear shape or a (2) bent or curved shape.