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:
Dec. 31, 2002
Filed:
Aug. 23, 2000
Yutaka Saito, Ishikawa, JP;
Hiroshi Haruki, Kanagawa, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
Antenna elements ( ) to ( ) are arranged at both ends in a diamond shape, and are located opposite to each other, while a length (a) of one edge of this diamond shape is set to a ½ wavelength (&lgr;/2). Antenna elements ( ) to ( ) are arranged in such a way that three portions are bent and the bent antenna elements are located opposite to each other, while a length (b) of one edge thereof is set to a ¼ wavelength (&lgr;/4). One ends of the antenna elements ( ) to ( ) are connected to the antenna elements ( ) to ( ), whereas the other ends thereof are connected to the antenna elements ( ) to ( ). The antenna elements ( ) and ( ), and the antenna elements ( ) and ( ) are connected to each other at a power supply unit ( ). With employment of such a structure, an antenna having a higher gain can be realized with having a simple plane structure.