Paper Titles
Influence of Hydrogen Atoms on Electrical Properties of BST Thin Film Capacitors
p.167
Effect of Gel-Films-Thickness and Sintering Conditions on the Crystal Structure and Microstructure of Alkoxy-Derived BaTiO3 Thin Films
p.171
Effect of the Annealing Temperature on Dielectric Properties of Bi1.5Zn1.0Nb1.5O7 Films Prepared by MOCVD
p.175
Preparation of Epitaxial LiNbO3 Thin Film by MOCVD and its Properties
p.179
Analysis of Nonlinear Dielectric Characteristics of (Ba, Sr)TiO3 Thin Films and their Frequency Conversion Application
p.183
Preparation of MBi4Ti4O15 (M=Ba,Ca) Thick Films by Screen Printing
p.187
Preparation of (Ba, Sr)TiO3 Thin Films on Glazed Alumina Substrate and Analysis of their Electric Properties
p.191
Laser-Anneal of Metal-Based Micro Optical Scanner Derived by Aerosol Deposition
p.195
Changes in the Electrical Conduction Mechanism with the Electrical Degradation of BaTiO3-Based Ceramics
p.201

Analysis of Nonlinear Dielectric Characteristics of (Ba, Sr)TiO3 Thin Films and their Frequency Conversion Application

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Abstract:

(Ba,Sr)TiO3 (BST) thin films have been investigated because of significant interest in device applications of their nonlinear dielectric properties such as in frequency tunable devices. We have investigated frequency conversion devices using BST films as new nonlinear devices, such as frequency mixers and multipliers. In this paper, we report the evaluation of nonlinear properties of various capacitors, and the experimental equation of the properties and the equivalent circuit model for frequency converters were established. A frequency multiplier using the BST film capacitor was fabricated, and obvious third harmonic signals could be observed. A conversion efficiency of -20 dB was obtained with a low input power of 0.25 W. Analysis of the converter with an equivalent circuit was also carried out, and the calculated output voltage agreed well with the measured result. The model is expected to be used for the analysis and improvement of conversion devices.

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Periodical:

Key Engineering Materials (Volume 388)

Pages:

183-186

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.388.183

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Online since:

September 2008

Authors:

Takashi Nishida, Takashi Nozaka, Takuya Tsuchikawa, Masahiro Echizen, Hiroaki Takeda, Kiyoshi Uchiyama, Tadashi Shiosaki

Keywords:

Bismuth Strontium Titanate, BST, Frequency Conversion, Micro-Wave, Mixer, Nonlinear Capacitor, Thin Film

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© 2009 Trans Tech Publications Ltd. All Rights Reserved

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