Liquid-based Reconfigurable Antenna and Reflector Technologies for Sub-TeraHertz 6G Communication


The sub-THz operation is expected to be challenged by severe path-loss and limited coverage. Liquid-based reconfigurable antennas and reflectors are expected to solve these issues by dynamically reconfiguring narrow beams towards the intended direction due to its extensive structural reshaping capability, a property not found in any other current feasible solution for the sub-THz band.


Project information

Project duration


Funded by

Research Council of Finland - Academy Project

Project funder

Academy Project Funding

Funding amount

529 472 EUR

Project coordinator

University of Oulu

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Project leader

Project description

This LiBERATE project aims to study liquid-based techniques for reconfigurable antennas and reflectors (RARs) in the sub-Terahertz (sub-THz) band. This is to overcome the severe path-loss and limited coverage intrinsic to sub-THz signals to enable extremely high-speed communications via the vastly available bandwidth. The dynamic reconfiguration of narrow beams towards the intended direction(s) by RARs is expected to extend the signal coverage significantly while reducing costs/energy in place of base stations. Traditional approaches, for reconfiguring antennas and reflectors, suffer from limitations such as the complexity of biasing and control circuits needed, significant overall power consumption, poor harmonic performance, and limited tuning range. The liquid-based reconfiguration technique offers an extensive structural reshaping capability, and such feature is not available in any other current feasible reconfiguration methods for sub-THz RARs. This solution is expected to be resource-efficient to catalyse the use of the sub-THz band for 6G communications, accelerating the digitalization of economy, society, and sustainability.