Design and Performance Measurement of an On-body Capacitively Loaded Planar Inverted-F Antenna for Bio-medical Applications

In this research, an on-body capacitively loaded planer inverted-F antenna has been designed for biomedical applications, which is able to operate in MICS (Medical Implant Communication Service) band. The primary reason behind choosing MICS band (401MHz-406MHz) because of its availability, accepted propagation, safest frequency band for human body, characteristics etc. For making this antenna bio-medically suitable to use on human body tissue the antenna has mounted on the human body phantom model where all the properties of human body tissue have been maintained. The antenna is suitable for real time monitoring of different types body signals and also for communicating with other sensors related to on-body devices. To make this antenna bio-compatible and improve its performance an additional silicon layer has been used between the patch and human body phantom. As, this antenna is designed for biomedical applications it needs to be harmless to human body tissue, for which its SAR is calculated and found at a safety region. , radiation pattern, bandwidth, return loss also observed through simulation and measurement by using CST microwave studio.