Design of a Polyester Substrate based Microstrip Patch Antenna for WBAN Applications

Abstract

- Nowadays, the development of wireless communication systems requires thin, lightweight and inexpensive antennas. This paper presents a wearable microstrip patch antenna designed on a polyester-based flexible substrate and recommended for wireless body area network (WBAN) applications. The designed antenna operates in the industrial scientific and medical (ISM) band. Its operating frequency ranges from 2.4202-2.4784 GHz with a 10 dB impedance bandwidth of 58.3 MHz. It has low return loss and high gain value of -23.64 dB and 8.38 dB, respectively. The maximum radiation efficiency of the antenna is 88% at 2.45 GHz. Specific absorption rate (SAR) measurement satisfies the safety guidelines defined by the IEEE standards.