M. A. Marakhovskiy, Alexey Vitalievich Donchenko, Sergey Vladimirovich Krutiev
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Broadband Measurement Of The Complex Permittivity Of Ferroelectric Ceramics In The Microwave Range
The new approach for measuring the complex permittivity of ferroelectrics in the microwave range is proposed. The double ridged waveguide is used as a measuring cell, which allows increasing the sensitivity and frequency range of measurements. The electrodynamic problem is solved for a waveguide with complex cross section and piecewise-layered dielectric filling. The installation and the measurement results of complex permittivity of BST ferroelectric ceramics with the addition of MgO in the range 7.5 - 18 GHz are presented.
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