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. 20, 2004
Filed:
May. 09, 2002
Applicant:
Inventors:
James P. Phillips, Lakes in the Hills, IL (US);
Christopher P. Cash, Woodstock, IL (US);
Jeffrey Y. Ho, Palm Bay, FL (US);
Narenda Pulimi, Rolling Meadows, IL (US);
Paul W. Reich, Glendale Heights, IL (US);
Roger L. Scheer, Crystal Lake, IL (US);
Assignee:
Motorola, Inc., Schaumburg, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01Q 1/24 ; H01Q 1/36 ;
U.S. Cl.
CPC ...
H01Q 1/24 ; H01Q 1/36 ;
Abstract
A multi-band radio communication device with an antenna system that includes an antenna element and a parasitic element located in proximity to the antenna element. A tuning circuit is coupled to the parasitic element. The tuning circuit is variable to adjust the parasitic load on the antenna element to provide variable operating frequencies and bandwidths for the communication device.