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Measurement of Dielectric Properties of Pb(Zr 0.52 Ti 0.48 )O 3 , Ba 0.5 Sr 0.5 Nb 2 O 6 , and BaTiO 3 Ferroelectric Ceramics at Microwave Frequencies
Author(s) -
Li Lei,
Fang Yong,
Chen Xiang Ming
Publication year - 2012
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2011.04871.x
Subject(s) - dielectric , materials science , ceramic , ferroelectricity , analytical chemistry (journal) , dielectric loss , microwave , mineralogy , ferroelectric ceramics , permittivity , high κ dielectric , composite material , chemistry , optoelectronics , telecommunications , chromatography , computer science
A modified resonant cavity method was developed to measure the dielectric properties of ferroelectric ceramics at microwave frequencies, which were difficult to be evaluated accurately because of the high dielectric constant and high dielectric loss. With the aid of low‐loss reference ceramic, the dielectric constant and dielectric loss of the small‐sized ferroelectric ceramic sample could be measured accurately from the difference between the resonant peaks (TE 01δ mode) with and without introducing the to‐be‐determined sample. The microwave dielectric properties of Pb(Zr 0.52 Ti 0.48 )O 3 , Ba 0.5 Sr 0.5 Nb 2 O 6 , and BaTiO 3 ferroelectric ceramics were measured between 3.4 and 4.9 GHz using this method, together with the temperature dependence.