Design and Simulation of a Slotted Inset Feed Patch Antenna for Wireless Body Area Network Applications

Abstract

This paper proposes a flexible and compact antenna that can be used for Wireless Body Area Network applications. The antenna is designed over a flexible polyimide substrate that is suitable for body-worn applications. The antenna is designed with a dimension of <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$0.48 \lambda \ \mathrm{x} \ 0.62 \lambda \ \mathrm{x} \ 0.004 \lambda$</tex> , with a gain of 6.77dBi and a return loss of -50dB. The antenna performance enhancement in relation to gain and return loss is achieved by using the slotted feeding and inset feed technique which helped in impedance matching. The antenna was designed and simulated in CST studio suite.