This effort studies the implementation of a biocompatible Planar Inverted-F Antenna
(PIF A) for the Medical Instrument Communication System (MICS) frequency band of
402 to 405 MHz for RFID applications. The basic electromagnetic properties of human
tissues are investigated at 403 .5 MHz. Then, the radiation characteristics of submerged
wire antenna are evaluated in order to approximate the effects of multilayered media on a
PIFA's performance. The PIFA is assessed using Ansoft's Finite Element Method based
electromagnetic evaluation software, HFSS v.l 0. The electrical parameters of the
antenna in relation to the surrounding environment, notably air, silicone capsule, and a
three-layered bio-media, are presented. The analysis shows that the resonant frequency
as well as the electrical performance of the design is significantly affected by the physical
dimensions and the relative permittivity of the dielectric materials covering the antenna.