Abstract

The temperature coefficient of resonant frequency (τf) of a microwave resonator is determined by three materials parameters according to the following equation: τf=−(½ τε + ½ τμ + αL), where αL, τε, and τμ are defined as the linear temperature coefficients of the lattice constant, dielectric constant, and magnetic permeability, respectively. We have experimentally determined each of these parameters for Ba(Zn1/3Ta2/3)O3, 0.8 at.% Ni-doped Ba(Zn1/3Ta2/3)O3, and Ba(Ni1/3Ta2/3)O3 ceramics. These results, in combination with density functional theory calculations, have allowed us to develop a much improved understanding of the fundamental physical mechanisms responsible for the temperature coefficient of resonant frequency, τf.

Original languageEnglish (US)
Pages (from-to)1508-1516
Number of pages9
JournalJournal of the American Ceramic Society
Volume100
Issue number4
DOIs
StatePublished - Apr 1 2017

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Natural frequencies
Microwaves
Microwave resonators
Magnetic permeability
Temperature
Lattice constants
Density functional theory
Permittivity

Keywords

  • density functional theory
  • dilatation/dilatometry
  • dopants/doping
  • electron spin resonance
  • microwave resonators

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

Cite this

Fundamental mechanisms responsible for the temperature coefficient of resonant frequency in microwave dielectric ceramics. / Zhang, Shengke; Sahin, Hasan; Torun, Engin; Peeters, Francois; Martien, Dinesh; DaPron, Tyler; Dilley, Neil; Newman, Nathan.

In: Journal of the American Ceramic Society, Vol. 100, No. 4, 01.04.2017, p. 1508-1516.

Research output: Contribution to journalArticle

Zhang, Shengke ; Sahin, Hasan ; Torun, Engin ; Peeters, Francois ; Martien, Dinesh ; DaPron, Tyler ; Dilley, Neil ; Newman, Nathan. / Fundamental mechanisms responsible for the temperature coefficient of resonant frequency in microwave dielectric ceramics. In: Journal of the American Ceramic Society. 2017 ; Vol. 100, No. 4. pp. 1508-1516.
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AU - Zhang, Shengke

AU - Sahin, Hasan

AU - Torun, Engin

AU - Peeters, Francois

AU - Martien, Dinesh

AU - DaPron, Tyler

AU - Dilley, Neil

AU - Newman, Nathan

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AB - The temperature coefficient of resonant frequency (τf) of a microwave resonator is determined by three materials parameters according to the following equation: τf=−(½ τε + ½ τμ + αL), where αL, τε, and τμ are defined as the linear temperature coefficients of the lattice constant, dielectric constant, and magnetic permeability, respectively. We have experimentally determined each of these parameters for Ba(Zn1/3Ta2/3)O3, 0.8 at.% Ni-doped Ba(Zn1/3Ta2/3)O3, and Ba(Ni1/3Ta2/3)O3 ceramics. These results, in combination with density functional theory calculations, have allowed us to develop a much improved understanding of the fundamental physical mechanisms responsible for the temperature coefficient of resonant frequency, τf.

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KW - dilatation/dilatometry

KW - dopants/doping

KW - electron spin resonance

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