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Sub-nanosecond Tuning of Microwave Resonators Fabricated on Ruddlesden-Popper Dielectric Thin Films

Published

Author(s)

Aaron M. Hagerstrom, Xifeng Lu, Natalie Dawley, H. Nair, Jordi Mateu, Robert D. Horansky, Charles A. Little, James C. Booth, Christian J. Long

Abstract

Voltage-tunable dielectric materials are widely used for microwave-frequency signal processing. Among tunable dielectric thin films, (SrTiO3)nSrO Ruddlesden-Popper (RP) superlattices have exceptionally low loss at high frequencies. This paper reports the first realization of resonators, a ubiquitous building block of microwave components, fabricated on RP films, and an analysis of their static and dynamic tuning behavior. The resonators have approximately 2.5 % tuning of the resonance frequency at room temperature and 20 % tuning at 200 K, and a tuning time scale of less than a nanosecond, which is limited for the current measurements by the circuit rather than material properties
Citation
Journal of Advanced Materials

Keywords

tunable, microwave, ruddlesden-popper, SrTiO3, components, telecommunications, tuning speed
Created July 9, 2018, Updated March 27, 2019