X-band Left Handed Phase Shifter using Thin Film Ba0.25SR0.75TiO3 Ferroelectric Varactors

This paper describes the design, modeling, and realization of a tunable left handed (LH) phase shifter using thin film Ba0.25Sr0.75TiO3 (BST) ferroelectric varactors. The unique nature of LH transmission line (TL) metamaterials enables reduced size, compared to conventional loaded line phase shifters realized as right handed (RH) TLs. The prototype LH TL… CONTINUE READING