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. 19, 2005
Filed:
Sep. 26, 2003
Applicant:
Po-chao Chen, Taipei, TW;
Inventor:
Po-Chao Chen, Taipei, TW;
Assignee:
SmartAnt Telecom Co., Ltd., Hsinchu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01Q009/04 ;
U.S. Cl.
CPC ...
Abstract
A double frequency antenna for transmitting and receiving radio signals includes a first substrate and a second substrate. The first substrate has a first surface and a second surface opposing each other. The first surface has a first radiation section to radiate a corresponding first frequency. The second surface has a first ground section. The second substrate has four L-shape corners, and a first surface and a second surface opposing each other. The first surface has a second radiation section to radiate a corresponding second frequency. The second surface has a second ground section.