Patent ID: 8938305
Filing Date: 2015-01-20
Classification: A61N,H01Q,H04B

Abstract:
1. A medical transceiver device for radio-based communication with an implantable medical device comprising; circuitry for transmitting radio frequency signals to, and/or receiving radio frequency signals from, said implantable medical device, said radio frequency signals having a wavelength; first and second dipole antennas each having a structural length; an antenna feed network operatively interconnected between said circuitry and said first and second dipole antennas; each of said first and second dipole antennas being operable by said circuitry as a transmitting and/or receiving antenna for said radio frequency signals; said first and second dipole antennas being operable by said circuitry to emit and/or receive radio waves of different polarizations and thereby exhibiting polarization diversity; and said first and second dipole antennas being adjacent to each other at substantially a single location in space at a distance from each other of a size that is no larger than one-sixteenth of said wavelength, said size of said distance giving said first and second dipole antennas substantially no spatial diversity.