A printed antenna with a ground plane and electromagnetically coupled feed for 2.45GHz body area networks

This paper presents a printed antenna with a full ground plane and electromagnetically coupled feed for body area network devices operating in industrial, scientific, and medical (ISM) band at 2.45 GHz. Performance characteristics along with parametric analysis are presented. Specific absorption rate (SAR) analysis is carried out to investigate its performance for body centric wireless communication. The electromagnetically-coupled feed used is tuned to fill a null in the radiation pattern and to achieve impedance matching. The proposed antenna exhibits wide radiation pattern along the body surface to provide maximum coverage and its narrow width (14mm) makes it suitable for on-body applications.