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:
Jun. 03, 2003
Filed:
Jul. 30, 2001
Yutaka Saito, Ishikawa, JP;
Hiroshi Haruki, Yokohama, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
Two one-wavelength antenna elements ( ) and ( ) arranged in diamond-wise opposition to each other so that one-ends of the antenna elements ( ) and ( ) are provided with a feeding portion ( ) and the other-ends ( ) of the same are opened, and so that the angle (&agr;) of each of bent portions ( ) and ( ) in the centers of the antenna elements ( ) and ( ) respectively is selected to be an optimal angle to obtain optimal radiation directivity with a simple configuration, thereby obtaining an antenna device which has a high gain. Accordingly, a small-size and low-profile antenna device can be obtained as a mobile communication antenna in UHF and submicro wave bands.