Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
April 7, 2009
Patent Application Number
10709511
Date Filed
May 11, 2004
Patent Citations Received
Patent Primary Examiner
Patent abstract
A quadrifilar helix antenna comprises a flexible substrate, four conductive elements with a feed network etched on a first portion of the flexible substrate, parasitic metallic lines etched on a second portion of the flexible substrate and a ground plane for the feed network. The resulting antenna structure is capable of efficiently receiving both satellite and terrestrial SDARS (Satellite digital audio radio service) signals.
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