The Importance of Antenna Near-Field Losses in Intra-Body UHF Communication Applications

摘要

The gain of the intra-body propagation channel between tissue implanted antennas is largely dependent on the lossy tissue structures on the direct path between the nodes. Nonetheless, intra-body link performance may be improved through careful antenna design to minimize the near-field losses which are doubly important in this application. In an initial study we consider the effect of insulation on an implanted dipole antenna at the MedRadio band (2.36-2.40 GHz) and placed within a muscle tissue phantom. Simulated electric field and radiation efficiency results are discussed for the single antenna case.