Separation of the Metallic and Dielectric Losses of Tunable Ferroelectric Capacitors Under Control Dc Voltage

Kotel'nikov, I. V.; Osadchy, V.N.; Platonov, Roman; Altynnikov, A. G.; Medvedeva, V. V.; Mikhailov, A. K.; Gagarin, A. G.; Tumarkin, A. V.; Kozyrev, A.A.

doi:10.2528/pierl17111704

Cited by 2 publications

(1 citation statement)

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“…The disadvantage of that approach is, firstly, the need to intervene by creating a metal coating, and secondly, the uncertainties related to separating the metallization properties from the properties of the dielectric. Methods have been proposed [ 16 , 17 ] to overcome the latter problem, but there is a need for techniques to measure the microwave parameters of the dielectric film itself in its original state.…”

Section: Introductionmentioning

confidence: 99%

An Adaptation of the Split-Cylinder Resonator Method for Measuring the Microwave Properties of Thin Ferroelectric Films in a “Thin Film—Substrate” Structure

Gagarin,

Tsyganova,

Altynnikov

et al. 2024

Sensors

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The split-cylinder resonator method was adapted to measure the microwave properties (dielectric permittivity and loss tangent) of thin ferroelectric films on a dielectric substrate. The mathematical model for calculating the resonance frequency of the split-cylinder resonator was adjusted for the “ferroelectric film—substrate” structure. An approach for correcting the gap effect based on calibrating with a single-layer dielectric was introduced and used to study two-layer dielectrics. The prototype of a split-cylinder resonator designed to measure single-layer dielectric plates at a frequency of 10 GHz was presented. The resonator calibration was performed using dielectric PTFE samples and fused silica, and an example of the correction function was suggested. The measurement error was estimated, and recommendations on the acceptable parameter range for the material under investigation were provided. The method was demonstrated to measure the microwave properties of a ferroelectric film on a fused silica substrate.

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Section: Introductionmentioning

confidence: 99%