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Multi-band planar antenna

  • US 6,911,945 B2
  • Filed: 02/02/2004
  • Issued: 06/28/2005
  • Est. Priority Date: 02/27/2003
  • Status: Expired due to Fees
First Claim
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1. A planar antenna having at least a first and a second operating band and comprising a ground plane and a radiating planar element with an antenna feeding point and a shorting point, a first slot opening at an edge of the planar element, the first slot dividing the planar element into a first and a second radiating branch as seen from the shorting point, and a radiating second slot opening at an edge of the planar element so that the feeding point and the shorting point remain in an area between the first and second slots, wherein, to improve matching of the antenna, the planar antenna further comprises a second shorting conductor being located on the other side of the open end of the second slot from the feeding point.

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