Authors: S. Costanzo1 , F. Venneri1 , A. Raffo1 , G. Di Massa1 , P. Corsonello1
Source: FERMAT, Volume 13, Communication 4, Jul.-Aug., 2016
Abstract: A varactor-loaded radial phasing line is proposed in this work to actively tuning the phase of an aperturecoupled reflectarray cell, thus allowing to enlarge the reconfigurability frequency range. The proposed approach is applied to design an X-band 0.45 λλ × 0.45λ reflectarray cell giving a 320° phase agility within a measured frequency range of about 8.5%, significantly greater with respect to that achievable by a simple linear phasing line.
Index Terms: Reflectarray, Reconfigurable antennas.
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Active Reflectarray Element with Large Reconfigurability Frequency Range