Meta Surface-Based Multiband MIMO Antenna for UAV Communications at mm-Wave and Sub-THz Bands
Tale Saeidi,
Sahar Saleh,
Nick Timmons,
Ahmed Jamal Abdullah Al-Gburi,
Saeid Karamzadeh,
Ayman A. Althuwayb,
Nasr Rashid,
Khaled Kaaniche,
Ahmed Ben Atitallah,
Osama I. Elhamrawy
Affiliations
Tale Saeidi
WiSAR Lab, Atlantic Technological University (ATU), F92 FC93 Letterkenny, Ireland
Sahar Saleh
WiSAR Lab, Atlantic Technological University (ATU), F92 FC93 Letterkenny, Ireland
Nick Timmons
WiSAR Lab, Atlantic Technological University (ATU), F92 FC93 Letterkenny, Ireland
Ahmed Jamal Abdullah Al-Gburi
Centre of Telecommunication Research and Innovation (CeTRI), Faculty of Electronics and Computer Technology and Engineering, Universiti Teknikal Malaysia Melaka, Durian Tunggal 76100, Malaysia
Saeid Karamzadeh
Millimeter Wave Technologies, Intelligent Wireless System, Silicon Austria Labs (SAL), 4040 Linz, Austria
Ayman A. Althuwayb
Electrical Engineering Department, College of Engineering, Jouf University, Sakaka 72388, Saudi Arabia
Nasr Rashid
Electrical Engineering Department, College of Engineering, Jouf University, Sakaka 72388, Saudi Arabia
Khaled Kaaniche
Electrical Engineering Department, College of Engineering, Jouf University, Sakaka 72388, Saudi Arabia
Ahmed Ben Atitallah
Electrical Engineering Department, College of Engineering, Jouf University, Sakaka 72388, Saudi Arabia
Osama I. Elhamrawy
Electrical Engineering Department, College of Engineering, Jouf University, Sakaka 72388, Saudi Arabia
Unmanned aerial vehicles (UAVs) need high data rate connectivity, which is achievable through mm-waves and sub-THz bands. The proposed two-port leaky wave MIMO antenna, employing a coplanar proximity technique that combines capacitive and inductive loading, addresses this need. Featuring mesh-like slots and a vertical slot to mitigate open-stopband (OSB) issues, the antenna radiates broadside and bidirectionally. H-shaped slots on a strip enhance port isolation, and a coffee bean metasurface (MTS) boosts radiation efficiency and gain. Simulations and experiments considering various realistic scenarios, each at varying vertical and horizontal distances, show steered beam patterns, circular polarization (CP), and high-gain properties, with a maximum gain of 13.8 dBi, an axial ratio (AR) 9.98 dB, and an envelope correlation coefficient (ECC) <0.003. This design supports drones-to-ground (D2G), drone-to-drone (D2D), and drone-to-satellite (D2S) communications.
