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. 11, 2006
Filed:
May. 27, 2003
Xin Zhang, Tokyo, JP;
Seiji Kado, Tokyo, JP;
Hiroaki Satou, Tokyo, JP;
Hitachi Cable, Ltd., Tokyo, JP;
Abstract
A planar antenna has a radiating element that radiates electric wave, and an earthing conductive plate that reflects the electric wave radiated from the radiating element. There is formed a space between the earthing conductive plate and the radiating element. The radiating element has a strip-shaped central conductive part with a length corresponding to the half wavelength of a first transmission radio frequency signal, and strip-shaped conductive parts with a length corresponding to the half wavelength of a second transmission radio frequency signal that has a frequency different from that of the first transmission radio frequency signal.