电磁开腔测量各向异性媒质复介电常数
THE MEASUREMENT OF COMPLEX PERMITTIVITY OF ANISOTROPIC DIELECTRICS BY MEANS OF AN ELECTROMAGNETIC OPEN RESONATOR
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摘要: 本文利用微扰原理和复数源点法,对电磁开腔测量单轴各向异性媒质复介电常数进行了理论研究,并且定量地分析了在测量中由于媒质的各向异性引起的双折射现象。最后利用一套八毫米电磁开腔自动测量系统对几种石英晶体样品进行了实际测量。Abstract: By applying the perturbation theory and complex-point method, theoretical research of the measurement of complex permittivity of uniaxial anisotropic materials, by means of an electromagnetic open resonator has been made, and the double refraction phenomenon due to the anisotropy of measured dielectric materials has been quantitatively analyzed. Finally, at 8mm band, an automated electromagnetic open resonator measurement system was used, and measurements have been made on some single-crystal quartz speciments.
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