Design of triple starfish shaped microstrip patch antenna for IoT applications

Abstract

A triple Starfish shaped Microstrip patch antenna with microstrip line feed for IoT application is introduced in this work. The antenna is active over the frequency bands of 0.62GHz-0.96GHz, 2.34GHz-2.46GHz, 3.13GHz-3.31GHz, 4.73GHz-5.03GHz, 5.68GHz-5.92GHz. The Sn = −10 dB impedance bandwidth is 340MHz (0.62GHz-0.96GHz), 120MHz (2.34GHz-2.46GHz), 180MHz (3.13GHz-3.31GHz), 300MHz (4.73GHz-5.03GHz), 240MHz (5.68GHz-5.92GHz) in different bands. The FR4 material of dielectric constant 4.4 and loss tangent 0.02 is chosen as the substrate of the antenna. The antenna operates in the frequency ranges of Bluetooth, WiFi, and WiMAX and enables the IoT applications. As well as it can works in the range of GSM 900 band for cellular applications.