Design and Analysis of a UWB patch antenna for Wireless Implantable Body Area Network (Wi BAN) Applications

Wireless implantable body area network (Wi BAN) technologies have improved the health monitoring system for the medical diagnostic of instance heart attack, BP(blood pressure) and breast cancer. The aim of present work, to model a UWB (Ultra-Wideband) implantable microstrip patch antenna resonating at 4.8GHz applicable for Wi BAN applications. The designed antenna is modelled on liquid crystal polymer (LCP) substrate by using high frequency structural simulator (HFSS) software. In this work, rectangular patch with 2 L slots have been proposed to achieve the 4.8GHz operating frequency for Wi BAN applications. The antenna parameters such as RC (reflection coefficient), operating BW (Bandwidth), VSWR (Voltage standing wave ratio) and radiation pattern have been analysed to understand the performance of the antenna. The designed antenna is operating from 4.21-5.67 GHz with the bandwidth of 1.46GHz and resonating at 4.8GHz with the reflection coefficient of −43dB. Gain of designed antenna is 7.77dBi at operating frequency.