Microwave Characterization of Bulk Ferroelectrics and Relaxors using Composite Dielectric Resonator

Author

Veljko, S. ; Bovtun, V. ; Krupka, J. ; Nuzhnyy, D. ; Borisov, V. ; Kamba, S. ; Petzelt, J.

Author_Institution

Inst. of Phys., ASCR, Prague

Volume

2

fYear

2007

fDate

25-30 June 2007

Firstpage

794

Lastpage

796

Abstract

A method based on a composite cylindrical dielectric resonator (DR) to characterize the dielectric permittivity and losses in the microwave range of a ferroelectrics and relaxors is developed and set up. Resonance frequencies and Q-factors of the TE₀₁₁ mode and TE₀₂₁ mode of the composite DR versus dielectric loss of the sample with different permittivity is studied. Temperature dependences of the dielectric permittivity and loss of ferroelectric Ba_0.6Sr_0.4TiO₃ ceramics with coarse and fine grains and of relaxor ceramics PMN and Ba₂La_0.5Nd_0.5Ti₂Nb₃O₁₅ at high frequencies and microwaves are measured.

Keywords

Q-factor; barium compounds; dielectric losses; lanthanum compounds; lead compounds; neodymium compounds; permittivity; relaxor ferroelectrics; strontium compounds; titanium compounds; Ba_0.6Sr_0.4TiO₃; Ba₂La_0.5Nd_0.5Ti₂Nb₃O₁₅; PMN; Q-factors; composite cylindrical dielectric resonator; dielectric losses; dielectric permittivity; ferroelectric ceramics; microwave range; relaxor ceramics; resonance frequencies; Ceramics; Dielectric loss measurement; Dielectric losses; Ferroelectric materials; Microwave theory and techniques; Permittivity; Q factor; Resonance; Resonant frequency; Tellurium;

fLanguage

English

Publisher

ieee

Conference_Titel

Physics and Engineering of Microwaves, Millimeter and Submillimeter Waves and Workshop on Terahertz Technologies, 2007. MSMW '07. The Sixth International Kharkov Symposium on

Conference_Location

Kharkov

Print_ISBN

1-4244-1237-4

Type

conf

DOI

10.1109/MSMW.2007.4294817

Filename

4294817