Materials design with enhanced temperature stability of resonant frequency for high frequency application

Dong Wan Kim, Kug Sun Hong

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)


For low temperature cofired ceramic (LTCC) materials to achieve increase functionality, as well as low loss and moderate dielectric constant, it is essential to achieve the temperature stability of the resonant frequency. Facing several empirical approaches toward tuning the temperature coefficient of the resonant frequency (τf) through the formation of mixtures or a solid-solution between the two end members with opposite signs of τf, which result in higher dielectric loss, we took a closer look at the texture engineering that determines the anisotropic dielectric properties in barium niobate ceramics. We demonstrate the advantage of texture engineering for microwave dielectric properties including temperature stability by control of crystallographic orientation. Also, the monoclinic rare earth niobates are investigated as novel microwave dielectric materials. Furthermore, the stable τf of the rare earth niobates could be efficiently explained through the ferroelastic domain engineering related to phase transformation.

Original languageEnglish
Title of host publicationAdvances in Nanomaterials and Processing - IUMRS - ICA - 2006 International Conference in Asia
PublisherTrans Tech Publications Ltd
Number of pages4
EditionPART 1
ISBN (Print)3908451310, 9783908451310
Publication statusPublished - 2007
Externally publishedYes
EventIUMRS International Conference in Asia 2006, IUMRS-ICA 2006 - Jeju, Korea, Republic of
Duration: 2006 Sept 102006 Sept 14

Publication series

NameSolid State Phenomena
NumberPART 1
ISSN (Print)1012-0394


OtherIUMRS International Conference in Asia 2006, IUMRS-ICA 2006
Country/TerritoryKorea, Republic of


  • High frequency
  • Low temperature cofired ceramics
  • Temperature stability
  • Texture

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Condensed Matter Physics


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