Design of Wearable Microstrip Patch Antenna for Wireless Body Area Network

Abstract

Wireless communication is a revolutionary technology that the world is grappling with right now. Because of the increased use of wireless networks and electrical apparatus, wireless body area networks are becoming more widespread. By placing multiple devices on the human body, WBAN has established a connection between them. The wearable antenna is utilized to improve various WBAN applications. This study shows a low-profile wearable antenna through WBAN for ongoing monitoring of critical human indicators like blood pressure, pulse rate, as well as skin temperature. A small, low-profile, and flexible antenna made of FR-4 material is presented. The antenna works with an operating frequency of 2.45 GHz and has a return loss of less than -10dB. The proposed antenna’s overall dimensions are 40x38mm2. The designed antenna’s gain, directivity, VSWR, bandwidth, and SAR are all simulated utilizing CST software. The antenna has a gain of 1.85 dB, a return loss of -20.18dB, a bandwidth of 594 MHz based on $|S_{11}|\leq-10dB$, a directivity of 2.3 dB, and radiation efficiency of 90.2 percent, according to the simulation results. This antenna can become a trustworthy selection for WBAN applications in the ISM band due to its satisfactory performance.