Microwave frequency tuning and harmonic generation in ferroelectric thin film transmission lines

James C. Booth, R. H. Ono, Ichiro Takeuchi, Kao Shuo Chang

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

We evaluate dielectric tuning on nanosecond time scales in ferroelectric Ba0.3Sr0.7TiO3 thin films by measuring nonlinear harmonic generation at a fundamental frequency of 3 GHz. We compare the form of the distributed nonlinear capacitance per unit length C(V rf) extracted from a simple model of harmonic generation in coplanar waveguide transmission line structures with the nonlinear capacitance C(V dc) measured using a dc bias voltage, and obtain excellent agreement for temperatures in the range 235-295 K. This demonstrated agreement implies that full dielectric tuning can be expected in these ferroelectric thin films on nanosecond time scales, and also demonstrates that detrimental high-frequency nonlinear effects in device structures can be accurately predicted based on dc biased measurements.

Original languageEnglish
Pages (from-to)718-720
Number of pages3
JournalApplied Physics Letters
Volume81
Issue number4
DOIs
Publication statusPublished - 2002 Jul 22

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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