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:
Jul. 11, 2006
Filed:
Sep. 09, 2003
Hironori Okado, Tokyo, JP;
Hironori Okado, Tokyo, JP;
Taiyo Yuden Co., Ltd., Tokyo, JP;
Abstract
An antenna according to this invention comprises a ground pattern; and a planar element that has a feed point and whose edge portion opposite to the ground pattern has a trimmed portion that makes a distance with the ground pattern vary and is composed of at least either one of a curved line and line segments which are connected while their inclinations are changed stepwise, and the ground pattern is juxtaposed with the planar element without fully surrounding the edge portion of the planar element. Since it is possible to appropriately adjust the coupling degree between the ground pattern and the planar element by juxtaposing the ground pattern with the planar element and providing the aforementioned trimmed portion, the wide bandwidth is achieved. In addition, by disposing the ground pattern and the planar element in the aforementioned positional relationship, the entire antenna can also be miniaturized.