Directional Modulation from a Wrist-Wearable Compact Antenna

• DOI: 10.23919/eucap53622.2022.9769624
• Publication Date: 2022-05-24T19:48:35Z
• Authors: Abel Zandamela; Nicola Marchetti; Adam Narbudowicz
• Keywords: Beamwidth; Specific absorption rate; Modulation (music)

This work proposes compact multiport antennas for directional modulation (DM) on wrist-wearable devices to improve the secrecy and privacy of transmitted data. The DM performance is investigated using antenna in free-space with a human forearm-phantom. system achieves low Bit Error Rate (BER) < 10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">−1</sup> 44° beamwidth, unique steerable secure direction over entire azimuth plane. Full-wave simulations including phantom at 5 GHz show realized gains up 4.26 dBi. specific absorption rate below standard limits, maximum values 0.487 W/kg 1.42 wrist-worn next-to-mouth conditions, respectively.