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Decoherence plate for use in a communications system

  • US 20050237259A1
  • Filed: 04/11/2005
  • Published: 10/27/2005
  • Est. Priority Date: 07/03/2003
  • Status: Active Grant
First Claim
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1. An antenna module, comprising:

  • a first antenna;

    a second antenna; and

    a decoherence plate having a surface positioned substantially in a plane that is substantially perpendicular to a line connecting the first antenna and the second antenna, wherein for each first path from the first antenna to the plane to the second antenna in a plurality of paths having a predefined range of path lengths there is a corresponding second path, from the first antenna to the plane to the second antenna, that is substantially 180°

    out of phase with the first path for a respective wavelength in one or more electromagnetic signals transmitted by the first antenna, thereby reducing a field coupling between the first antenna and the second antenna.

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