Miniaturized body implantable PIFA operates in MICS-band and SAR analysis at Brain, Breast and Muscle of a human phantom Model

Abstract

This paper represents a standard design of a Planar Inverted-F Antenna (PIFA) for medical applications which operates in MICS band (402-405MHz). The antenna is designed very small in size and a better resonant performance is observed at different tissues of human phantom Model. Rogers R03010 is used as substrate and Copper as material. By employing meandering and including the superstrate, the dimension of the proposed antenna is to 12.5 ×12.5 mm2.The antenna is operated at the desired frequency of 404 MHz and also the S11 parameter is obtained -25.81 dB maximum. Specific Absorption Rate (SAR) is calculated for Brain, Breast and Muscle of a human phantom model. At resonant the SAR value is found 0.5745 W/kg for brain, 0.5751 W/kg for muscle and 0.5772W/kg for breast tissue. In brain tissue the antenna gives better frequency response. Safety measurements were taken into account by stimulating the Specific Absorption Rate (SAR) distribution of the antenna to make it perfectly biocompatible.