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:
Oct. 02, 2012
Filed:
Feb. 25, 2010
Hideaki Shimoda, Tokyo, JP;
Tetsuya Shibata, Tokyo, JP;
Kei Suzuki, Tokyo, JP;
TDK Corporation, Tokyo, JP;
Abstract
An antenna device is provided with an antenna element including a base, an inductance adjustment pattern that is formed on the upper surface and a side surface of the base and has a substantially U-shape, a capacitance adjustment pattern that is formed on the upper surface of the base and is placed to face the inductance adjustment pattern, and first to third terminal electrodes provided on the bottom surface of the base. The antenna element is installed between the first side and the second side of the ground pattern that form the two facing sides of the antenna mounting region. One end of the inductance adjustment pattern is connected to the feed line, the other end of the inductance adjustment pattern is connected to the first side of the ground pattern, and the third terminal electrode is connected to the second side of the ground pattern.