Narbudowicz, A.A.NarbudowiczAmmann, M.J.M.J.AmmannHeberling, D.D.Heberling2022-03-052022-03-052017https://publica.fraunhofer.de/handle/publica/25483010.1109/LAWP.2017.2697720A new directional modulation system that uses radiation pattern data for modulation encoding is proposed. The approach allows compact multiport antennas (e.g., MIMO-capable antennas) to be used for directional modulation, replacing extensive arrays. The modulation weighting coefficients are calculated with a fixed, antenna specific equation, thus reducing computational complexity. The solution is intended to enhance privacy in small, battery-operated wireless devices, required for ""Internet of Things"" applications.en621journal article