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Omni directional antenna with multiple polarizations

  • US 20020158803A1
  • Filed: 04/27/2001
  • Published: 10/31/2002
  • Est. Priority Date: 04/27/2001
  • Status: Active Grant
First Claim
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1. An antenna assembly for a wireless communications device operating at a predetermined operational wavelength and having a transceiver circuit including a signal port and a ground plane, said antenna assembly comprising:

  • a generally planar conductive loop element having an electrical length of approximately one half of the predetermined wavelength, said conductive loop element being disposed a predetermined distance away from the ground plane and in general parallel alignment with the ground plane to define a region between the loop element and the ground plane, said region sized to receive a component associated with the wireless communications device; and

    a conductive feed structure coupled to the conductive loop element and extending toward the ground plane, said conductive feed structure having a feed point connection and a ground connection.

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