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Slot antenna having a MEMS varactor for resonance frequency tuning

  • US 7,348,928 B2
  • Filed: 12/14/2004
  • Issued: 03/25/2008
  • Est. Priority Date: 12/14/2004
  • Status: Active Grant
First Claim
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1. An apparatus, comprising:

  • a antenna layer having a primary slot formed entirely within the antenna layer, the primary slot not touching an edge of the antenna layer;

    one or more secondary slots formed entirely within the antenna layer to form a slot antenna, the one or more secondary slots each having a perpendicular intersection crossing the primary slot, the secondary slots not touching an edge of the antenna layer; and

    one or more varactors coupled to one or more of the secondary slots and not connected across said perpendicular intersection, to tune the slot antenna to a desired frequency via selection of a capacitance of one or more of the varactors.

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