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:
Mar. 15, 2005
Filed:
Nov. 08, 2002
Antonio Faraone, Plantation, FL (US);
Robert E. Stengel, Pompano Beach, FL (US);
Carlo Di Nallo, Sunrise, FL (US);
Antonio Faraone, Plantation, FL (US);
Robert E. Stengel, Pompano Beach, FL (US);
Carlo Di Nallo, Sunrise, FL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
Multi-band antenna systems () for wireless communication devices () for use in wireless communications systems () are disclosed. The multi-band antennas systems include a conductive film () that include ground plane areas () and conductive traces () that substantially circumscribe areas that include a plurality of interconnected swaths (). The antenna systems are capable of operating in a first common mode for supporting communications in a first frequency band, and in a second common mode and differential mode for supporting communications in a second frequency band. Nulls of gain patterns of the second common and differential mode are offset, such that sum of the gain patterns does not include nulls.