Design of Wideband Wearable Antenna using Characteristic Mode Analysis

Abstract

A wideband wearable antenna for Wireless Body Area Network (WBAN) applications is designed based on characteristic mode analysis (CMA). By using the ground as a part of the radiator, the impedance bandwidth of the antenna is greatly increased. The other performances of the antenna, e.g., the realized gain, radiation efficiency, radiation pattern, and the specific absorption rate (SAR) are analyzed both in free space and on the human body. This wide band behavior provides robustness across different environments and to relatively large fabrication tolerances.