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Parasitic element for a substrate antenna

  • US 6,285,327 B1
  • Filed: 04/21/1998
  • Issued: 09/04/2001
  • Est. Priority Date: 04/21/1998
  • Status: Expired due to Term
First Claim
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1. A parasitic element for use with an internal substrate antenna in a wireless communication device having one or more signal or power transfer conductors or signal feeds located adjacent to said antenna, wherein said substrate antenna comprises:

  • one or more conductive traces supported on a dielectric substrate having a predetermined thickness;

    said supporting substrate is mounted offset from and generally perpendicular to a ground plane associated with the wireless device; and

    said parasitic element comprises;

    at least one layer of conductive material disposed adjacent to one or more of said conductors in a region adjacent to said antenna, having a pre-selected width relative to said conductors, and a pre-selected length along said conductors sufficient to prevent energy from being coupled between said antenna and conductors in the region of said layer.

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