Miniaturized meander PCB antenna for 433MHz

Abstract

Wireless devices have become an important part of everyday life. Antennas are essential components in these wireless devices. In recent years, there has been an increased interest in operating at the ultra-high frequency (UHF) band. It is well known that the ISM 433, 433.050-434.790 MHz frequency bands [1] is widely used for low data rate applications, such as Wireless Sensor Network (WSN) and remote controls. This paper presents a miniaturized meander structure printed pcb antenna for ultra high frequency application. The proposed antenna of size 50mm×40mm, is designed to operate at frequency 433 MHz with 7 MHz bandwidth. The proposed antenna is designed on FR-4 substrate with a thickness of 1.6 mm. Good return loss and radiation pattern characteristic are obtained in frequency of interest. FEM based simulator Ansys HFSS is used for simulation.