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. 29, 2003
Filed:
Mar. 05, 2002
Applicant:
Inventors:
Andrew A. Efanov, Crystal Lake, IL (US);
James P. Phillips, Lake in the Hills, IL (US);
Assignee:
Motorola, Inc., Schaumburg, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01Q 2/100 ;
U.S. Cl.
CPC ...
H01Q 2/100 ;
Abstract
A balanced antenna system for a communication device includes a balanced transmission line electromagnetically coupled to a transceiver of the device. A symmetrical dipole antenna element is operable at a first frequency driven by the balanced transmission line. A symmetrical loop antenna shares portions of the dipole antenna element and is operable at a second frequency driven by the transmission line. Preferably, the antenna system is disposed within a flip portion of the device housing.