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Apparatus and methods for constructing antennas using vias as radiating elements formed in a substrate

  • US 7,444,734 B2
  • Filed: 12/09/2003
  • Issued: 11/04/2008
  • Est. Priority Date: 12/09/2003
  • Status: Active Grant
First Claim
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1. A method for constructing an antenna, the method comprising the steps of:

  • providing a substrate having a first surface and a second surface, the first and second surfaces defining planes that are substantially parallel;

    forming a conductive via stub in the substrate extending from the first surface to the second surface, wherein the conductive via stub is a radiating element of the antenna, the conductive via stub having a first diameter exposed at the first surface and a second diameter exposed at the second surface, the second diameter being greater than the first diameter; and

    a ground plane disposed on the first surface having an opening surrounding the conductive via stub and a contact pad disposed on the conductive via stub within the opening.

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