Publication Date:
2011-10-12
Description:
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.
Print ISSN:
0002-7820
Electronic ISSN:
1551-2916
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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