RADIATION CHARACTERISTICS AND EFFICIENCY ANALYSIS OF MICROSTRIP PATCH ANTENNAS FOR IOT APPLICATION

Abstract

Recently, microstrip patch antennas have gained significant popularity in the field of Internet of Things (IoT) applications owing to their advantageous characteristics such as their compact form factor, cost-effectiveness, and ease of manufacturing. This study presents an analysis of the radiation characteristics and efficiency of MPAs (Microstrip Patch Antennas) in the context of IoT (Internet of Things) applications. The objective of this study is to enhance and gain insights into the impact of various design factors through the utilization of two widely employed feed methodologies, namely microstrip line feed and coaxial probe feed. The antenna was designed and simulated to operate at a resonant frequency of 2.4 GHz. This was achieved by utilizing a TLY series dielectric substrate with a dielectric constant of around 2.17 and a thickness of 1.6 mm. The evaluation of the antenna performance was conducted using the Computer Simulation Technology (CST) microwave studio software. The antennas under consideration have demonstrated a reflected coefficient of -28.5 dB and -10.30 dB when utilizing microstrip line feed and coaxial probe feed, respectively. The simulation yielded favorable outcomes for VSWR, directivity, gain, bandwidth, and efficiency. In comparison to previous designs reported in the literature, the antenna being presented exhibits a significant enhancement in directivity, beam gain, return loss, and high radiation efficiency