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Comparison of the Experimental Performance of Ferroelectric CPW Circuits with Method-of-Moment Simulations and Conformal Mapping Analysis

  • NASA Glenn Research Center
  • Micron Technology Incorporated
  • National Renewable Energy Laboratory

Research output: Contribution to journalArticlepeer-review

6 Scopus Citations

Abstract

Experimental measurements of coplanar waveguide circuits atop thin films of ferroelectric BaxSr1 - xTiO3 (BST) were made as a function ofdc bias from O to 200 Vand frequency from 0.045 to 20 GHz. The resulting phase shifts are compared with method-of-moments electromagnetic simulations and a conformai mapping analysis to determine the dielectric constant of the BST films. The accuracy of the resulting dielectric constants is analyzed and compared to low-frequency measurements of interdigitated capacitor circuits on the same films.

Original languageAmerican English
Pages (from-to)34-37
Number of pages4
JournalMicrowave and Optical Technology Letters
Volume29
Issue number1
DOIs
StatePublished - 2001

NLR Publication Number

  • NREL/JA-520-30637

Keywords

  • Coplanar waveguide
  • Phase shifter
  • Thin-film ferroelectric

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