Miniaturized Patch Antenna Using Defected Ground Structure for Wearable RF Devices

Abstract

The goal of this study is to design and optimize a miniaturized patch antenna with a defected ground structure for use in wearable radio frequency (RF) technology. This research is mainly aimed at creating a small and light antenna that can be used in wearable devices including smartwatches, fitness trackers and healthcare systems. It uses DGS technology to make the antenna smaller without harming its most important features such as bandwidth, return loss, gain and impedance matching. Circular and rectangular slots in the ground plane increase how current flows through the DGS, leading to a more efficient and smaller antenna. Tests and simulations were conducted to check the antenna which showed that it can handle many frequencies, has very low reflections and its radiation is consistent. It has been confirmed that the antenna is appropriate for wearable devices, as it fulfills the small-size and high-performance standards of today’s wearable gadgets. It points out how DGS can be used to design small and efficient antennas for the next generation of wearable gadgets.