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Asymmetric-element reflect array antenna

  • US 6,642,889 B1
  • Filed: 05/03/2002
  • Issued: 11/04/2003
  • Est. Priority Date: 05/03/2002
  • Status: Expired due to Term
First Claim
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1. A patch antenna element, comprising:

  • a non-electrically conducting substrate;

    a patch antenna element;

    a plurality of notches formed in the antenna element an angularly displaced around the circumference of the patch antenna element;

    a plurality of stub short transmission lines, each stub positioned in one of the plurality of notches; and

    a plurality of switches individually coupled to an end of one notch and to one of the plurality of stub short transmission lines.

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