Energy-Efficient Dynamic Directional Modulation With Electrically Small Antennas

Authors

Adam Narbudowicz, Trinity College Dublin, Ireland
Abel Zandamela, Trinity College Dublin, Ireland
Nicola Marchetti, Trinity College Dublin, Ireland
Max Ammann, Technological University DublinFollow

Document Type

Article

Rights

Available under a Creative Commons Attribution Non-Commercial Share Alike 4.0 International Licence

Disciplines

2.2 ELECTRICAL, ELECTRONIC, INFORMATION ENGINEERING

Publication Details

Open access

https://ieeexplore.ieee.org/document/9674846

Abstract

This letter proposes a compact and energy-efficient directional modulation scheme for small and power constrained devices (e.g., Internet of Things wireless sensors). The scheme uses a uniform circular array of monopole antennas, with a single radiofrequency chain and antenna active at a time. The antennas can be located in close proximity, offering significant size reduction. Furthermore, the schemewas demonstrated to operate successfully with an array of 0.6 λ diameter. The system does not generate additional artificial noise, limiting interference to other systems. Finally, the antenna switching sequence can be randomly generated and without fine-tuned synchronization with the transmitter.

DOI

https://doi.org/10.1109/LAWP.2022.3141212

Recommended Citation

A. Narbudowicz, A. Zandamela, N. Marchetti and M. J. Ammann, "Energy-Efficient Dynamic Directional Modulation With Electrically Small Antennas," in IEEE Antennas and Wireless Propagation Letters, vol. 21, no. 4, pp. 681-684, April 2022, doi: 10.1109/LAWP.2022.3141212.