電磁開腔測量各向異性媒質復介電常數(shù)
THE MEASUREMENT OF COMPLEX PERMITTIVITY OF ANISOTROPIC DIELECTRICS BY MEANS OF AN ELECTROMAGNETIC OPEN RESONATOR
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摘要: 本文利用微擾原理和復數(shù)源點法,對電磁開腔測量單軸各向異性媒質復介電常數(shù)進行了理論研究,并且定量地分析了在測量中由于媒質的各向異性引起的雙折射現(xiàn)象。最后利用一套八毫米電磁開腔自動測量系統(tǒng)對幾種石英晶體樣品進行了實際測量。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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Bhawalter D D. Goncharenko A M[J].Brit. J. Appl. Phya.1967, 18(10):1431-1441[2]Ermert H. Electron. Lett.,1970, 6(22): 720-721.[3]Jones R G. J, phys. D: Appl. Phys, 1976. 9(5): 819-827.[4]Cullen A L, S F R. Yu P K[J].Proc. R. Soc. Lond. A.1979, 366(1725):155-171[5]Yu P K, Cnllen A L. Proc. R. Soc. Lond. A, 1982. 380(1778): 49-71.[6]Harriagton R F. Time harmonic electromagnetic fields. London: McGraw-Hill. 1961. Chap.7.[7]Afssr M N. IEEE Traoc. on MTT, 1984, MTT-32(12): 1598-1608. -
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