Wearable Dielectric Resonator Antenna for Bluetooth Applications

In this article, an innovative button shape Dielectric Resonator Antenna (DRA) is introduced which is applicable for Bluetooth applications. This DRA structure looks like a button that can be worn or stitched on the clothes or any body part. The proposed DRA has been excited by a microstrip feedline which is invented on the FR4 substrate to obtain better reflection coefficient and gain. The proposed DRA has been invented to behave as Bluetooth applications of 2.4 GHz to 2.48 GHz. The proposed DRA has been obtained better achievement regarding gain, reflection coefficient, and VSWR for Bluetooth applications. The reflection coefficient of the proposed DRA is -36.26 at resonant frequency 2.43 GHz. The innovative button shape DRA has obtained the greatest realized gain of 4.52 dBi and radiation efficiency of 92%. Finally, the proposed DRA has been simulated by applying CST studio software with the FR4 substrate.