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Implantable antenna for use with an implantable medical device

  • US 20030216793A1
  • Filed: 02/11/2003
  • Published: 11/20/2003
  • Est. Priority Date: 05/17/2002
  • Status: Abandoned Application
First Claim
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1. An antenna arrangement for communicating radio frequency signals with an implantable medical device, comprising:

  • a patch plane adapted for placement on an implantable medical device and adapted to exchange modulated electromagnetic energy with a surrounding transmission medium, the patch plane having a perimeter formed by a plurality of segments;

    a ground plane of an electrically conducting material having an area which is larger than the patch plane, the ground plane being located in relation to the patch plane such that a perpendicular projection of the patch plane onto the ground plane falls entirely within the ground plane;

    a dielectric substrate filling a volume between the patch plane and the ground plane;

    a grounding member electrically connecting the patch plane to the ground plane, the grounding member being attached to a first of said segments of the perimeter; and

    the substrate having high relative permittivity and extending a distance outside the volume between the patch plane and the ground plane with respect to at least a second of said segments of the perimeter.

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