Abstract

A compact-size rectangular slot antenna required for ultra-wide band body centric applications is presented. The antenna design is based on etching a rectangular slot on a circular radiator. The antenna geometric design parameters are determined by a state-of-the-art AI-driven antenna design method. Analysis of the proposed antenna was carried out and its performance assessed in terms of bandwidth, gain, efficiency, and radiation pattern. Results investigated show that the rectangular slot antenna maintains its bandwidth when placed in closed contact with the human body phantom. The very close agreement between the simulated and measured results both in free space and on body indicates that the antenna performance is immune to variation in the presence of human body phantom and robust to fabrication tolerances.

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