J. Phys. IV France 08 (1998) Pr9-113-Pr9-116
Microwave dielectric characterization of bulk ferroelectricsC.M. Weil1, R.G. Geyer1 and L. Sengupta2
1 National Institute of Standards and Technology, 325 Broadway, Boulder, CO 80303-3328, U.S.A.
2 U.S. Army Research Laboratory, AMSRL-MA-CC, Aberdeen Proving Ground, MD 21005-5069, U.S.A.
We discuss the application of existing RF measurement techniques, including waveguide and mode-filtered cavity resonator methods, to the dielectric characterization of bulk high-permittivity ferroelectrics at microwave frequencies. Complex permittivity data are presented for barium titanate and a composite of barium strontium titanate (BSTO) and nonferroelectric oxide at X-band (8-11 GHz) frequencies and at 24°C temperature. The advantages and disadvantages of each method are discussed in detail.
© EDP Sciences 1998