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:
Nov. 19, 2002
Filed:
Jun. 06, 2001
Applicant:
Inventor:
Argy Petros, Lake Worth, FL (US);
Assignee:
XM Satellite Radio, Inc., Washington, DC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01Q 2/100 ;
U.S. Cl.
CPC ...
H01Q 2/100 ;
Abstract
A combination linearly polarized antenna and quadrifilar helix antenna ( ) includes a quadrifilar antenna ( ) having a first coaxial cable ( ) and an antenna with linear polarization ( ) external to the quadrifilar antenna and having a second coaxial cable ( ). A center conductor of the second coaxial cable is isolated from a center conductor of the first coaxial cable and the first coaxial cable runs substantially concentrically through the antenna with linear polarization.