Miniaturization of Wearable Antennas Using Fractals in MICS Band

Abstract

A wearable antenna is designed to operate in MICS (Medical Implant Communication Service) band for telemedicine applications using the concept of fractals. A microstrip patch antenna consists of a substrate with a radiating patch and a ground plane on either side of the substrate. Fractal geometry is the procedure through which the reduction of size is achievable. In this proposed work, a self-similar fractal antennas using the technique of multicantor is implemented. The proposed models exhibit a good bandwidth and a return loss (S11) of more than -25 dB is approximately achieved in all the iterations. Miniaturization of the proposed antenna is achieved by cutting two rectangular segments in the edges after third iteration of the fractal. Approximately 24% of size reduction is achieved.