Reflection Amplifier with Phase Control Suitable for Active Reconfigurable Intelligent Surfaces
Marco Badii (University of Florence)
Giovanni Lasagni (University of Florence)
Giovanni Collodi (University of Florence)
Monica Righini (University of Florence)
Giulio Brancali (University of Perugia)
Roberto Vincenti Gatti (Università degli Studi di Perugia)
Guendalina Simoncini (TU Delft - Electrical Engineering, Mathematics and Computer Science)
Giacomo Schiavolini (University of Perugia)
Giulia Orecchini (University of Perugia)
Federico Alimenti (University of Perugia)
Alessandro Cidronali (University of Florence)
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Abstract
In this work, an elementary circuit block suitable for Active Reconfigurable Intelligent Surface (ARIS) implementation, at 5.8GHz, is presented. The chain is composed of a reflection amplifier cascaded to a phase shifter. The block exhibits a variable gain in the 0 to 15 dB range, and a maximum phase shift of 260∘, by varying the amplifier supply and phase shifter control voltages in the 2.5 V to 3.5 V and 0 V to 5 V ranges, respectively. The maximum power consumption of the cascade is within 52.5 mW. This work is the result of a collaboration between the University of Florence and the University of Perugia, in the frame of the PRIN 2022 SIPT-VARIS project.