Miniaturized High Gain Antenna for Biomedical Application

Abstract

In this paper, a low-profile antenna system has been designed for the biomedical application operating in industrial, scientific, and medical (2.40-2.4835 GHz) band. By using a shorting technique, a circular cut shaped radiator and the polygon-shaped open-ended slots in the ground plane is proposed. The total volume of the proposed antenna system is (7x7x0.2) mm3. The Roger Ultralam (ϵr = 2.9, tanδ = 0.0025) is used as a substrate and superstrate with 0.1 mm thickness. In the homogeneous skin phantom, the proposed antenna is placed to measure the results; this novel-shaped single wide band antenna has -12.98 dBi gains at 2.45 GHz. The radiation pattern of the proposed antenna is omnidirectional, and the results show that it is used for the skin implantation. This proposed antenna shows better result as compared to the previous work in terms of size, bandwidth, and gain of the antenna.