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Title: Evaluation of the relative permittivity of BaxSr 1-xTiO3 ceramics at microwave frequencies using microstrip ring resonators
Authors: Liu, JZ
Kwok, KW 
Chan, HLW 
Choy, CL 
Issue Date: 2004
Publisher: Springer
Source: Applied physics. A, Materials science & processing, 2004, v. 78, no. 7, p. 1033-1036 How to cite?
Journal: Applied physics. A, Materials science & processing 
Abstract: The microstrip-ring-resonance technique has been applied to determine the dielectric properties of high-permittivity barium strontium titanate (Ba xSr1-xTiO3) ceramics at microwave frequencies. A microstrip ring resonator of diameter 5 mm has been fabricated on the ceramics by the standard photolithography process. The transmission coefficient S 21 spectra for the resonators have been measured using a vector network analyzer and simulated using a commercial electromagnetic simulation package, IE3D. By fitting the observed spectra to the simulated spectra, ε and tan δ of the BaxSr1-xTiO3 ceramics have been determined. The results obtained by this technique are in agreement with those determined by other conventional methods. This technique is relatively simple, especially for high-permittivity materials, since there are less rigorous requirements on the sample and the test conditions.
ISSN: 0947-8396
EISSN: 1432-0630
DOI: 10.1007/s00339-003-2149-x
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