Spherical Modes Driven Directional Modulation With a Compact MIMO Antenna

Abel Zandamela, Nicola Marchetti, Max J. Ammann, Adam Narbudowicz

Research output: Contribution to journalArticlepeer-review

Abstract

In this letter, a compact beamsteering multiple-input-multiple-output (MIMO) antenna is proposed for directional modulation applications. A generalization of the beamsteering principle is presented and by exploiting the antenna's unidirectional beamsteering capability within the entire azimuth plane, the system realizes secure steerable transmissions in the direction of the legitimate receiver, with a low bit error rate of 10-5, while a high error rate of 10-1 is seen outside the desired regions. Numerical and experimental verifications are carried out to validate the proposed concept and comparisons with circular arrays are conducted, revealing that the system achieves comparable performance but with up to 35% and 71% reduction in antenna diameter and profile, respectively. The method is proposed as a good candidate to enhance the security of small Internet of Things (IoT) devices.

Original languageEnglish
Pages (from-to)477-481
Number of pages5
JournalIEEE Antennas and Wireless Propagation Letters
Volume22
Issue number3
DOIs
Publication statusPublished - 1 Mar 2023

Keywords

  • Beamsteering antennas
  • PHY-layer security
  • directional modulation (DM)
  • multiple-input-multiple-output (MIMO) antennas
  • small Internet of Things (IoT) devices

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