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Measurements and Analysis of Microwave Nonlinearities in Ferroelectric Thin Film Transmission Lines

Published

Author(s)

Jordi Mateu, James C. Booth, Susan A. Schima, Carlos Collado, David Seron, J M. Callaghan

Abstract

This work evaluates the microwave nonlinear properties of ferroelectric BSTO thin films by measuring the frequency response of several coplanar transmission lines and interdigital capacitor structures as a function of the applied electric field from 150 Hz to 40 GHz. We obtain the distributed nonlear capacitance C(Vdc). We also measure the harmonic generation at microwave frequencies in ferroeletric transmission lines. An accurate circuit model is used to obtain C(Vrt). Information about the tuning speed of the film is obtained from the comparison between the two capacitances. Characterization of this mechanism is also required to asess the spurious signal generation in ferroelectric-based devices.
Proceedings Title
Measurements and Analysis of Microwave Nonlinearities in Ferroelectric Thin Film Transmission Lines
Conference Dates
June 11-16, 2006
Conference Location
San Francisco, CA
Conference Title
IEEE MTT-S International Microwave Symposium Digest, IEEE International Microwave Symposium

Keywords

Ferroelectric films, microwave measurements, nonlinearities, circuit modeling, Harmonic Balance
Created June 11, 2006, Updated January 27, 2020