Measurement Of The Dielectric Constant Of Ferroelectric Kh2Po4 At 35GHz By Transmission In A Waveguide

M. Horioka

doi:10.1117/12.978484

18 November 1989 Measurement Of The Dielectric Constant Of Ferroelectric KH₂PO₄ At 35GHz By Transmission In A Waveguide

M. Horioka

Proceedings Volume 1039, 13th Intl Conf on Infrared and Millimeter Waves; (1989) https://doi.org/10.1117/12.978484
Event: 13th International Conference on Infrared and Millimeter Waves, 1987, Honolulu, HI, United States

Abstract

The apparatus to measure precisely dielectric constant of a high loss material at f=35GHz has been composed. By using this the complex dielectric constant( ε=ε-jε)of KH2PO4(KDP) has been determined in the temperature region from -160°C to 0°C. The temperature dependence of ε' shows a double peaks around the Curie temperature Tc, which characterizes the critical slowing down of the dielectric response. The maximum values of ε' and ε'' and ε'' reach 480 and 350 near Tc, respectively.

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M. Horioka "Measurement Of The Dielectric Constant Of Ferroelectric KH₂PO₄ At 35GHz By Transmission In A Waveguide", Proc. SPIE 1039, 13th Intl Conf on Infrared and Millimeter Waves, (18 November 1989); https://doi.org/10.1117/12.978484

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