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:
Sep. 16, 2003
Filed:
Apr. 02, 2002
Applicant:
Inventors:
Argy Petros, Lake Worth, FL (US);
Terry C. Helstrom, Boynton Beach, FL (US);
Assignee:
XM Satellite Radio, Inc., Washington, DC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01Q 2/100 ; H01Q 1/36 ;
U.S. Cl.
CPC ...
H01Q 2/100 ; H01Q 1/36 ;
Abstract
A combination linearly polarized antenna and quadrifilar helix antenna ( ) comprises a flexible substrate ( ), a quadrifilar antenna ( ) with a feed network ( ) etched on a first portion of the flexible substrate, an antenna with linear polarization ( ) etched on a second portion of the flexible substrate and a ground plane ( ) for both the quadrifilar antenna and the antenna with linear polarization etched on the flexible substrate.