用自由空间法测量材料复介电常数的研究

卢子焱; 唐宗熙; 张彪

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航空材料学报 ›› 2006, Vol. 26 ›› Issue (2) : 62-66.

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论文

用自由空间法测量材料复介电常数的研究

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Study of Using Free-Space Method for Measuring Complex Permittivity

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摘要

分析电磁波在自由空间通过平板电介质材料的传播特性,得到了散射参数与复介电常数之间的关系式和求解复介电常数的三种表达式,并对三种表达式分别进行误差分析。解决自由空间法测量电介质材料复介电常数的不稳定性问题和相位模糊性问题。建立测试系统,并在X波段对平板电介质材料进行测量。实验结果表明,本测试方法和测试系统是正确的。

Abstract

The characteristic of electromagnetic wave through the dielectric planar sample in free-space was analyzed.The relations between the scatter parameters and the complex permittivity were found, and three expressions were obtained to determine the complex permittivity.The error analysis of these three expressions was performed.By combining these three expressions, instability problem and phase-shift ambiguity problem of thick samples were solved.The test system was established and several samples were measured at X-band.The validity of the method and test system was proved by experiments.

导出引用

卢子焱, 唐宗熙, 张彪. 用自由空间法测量材料复介电常数的研究[J]. 航空材料学报, 2006, 26(2): 62-66

LU Zi-yan, TANG Zong-xi, ZHANG Biao. Study of Using Free-Space Method for Measuring Complex Permittivity[J]. Journal of Aeronautical Materials, 2006, 26(2): 62-66

参考文献

韩桂芳,陈照峰,张立同,等.高温透波材料研究进展[J].航空材料学报,2003,23(1):57-62.
曹江.介质材料电磁参数测量总述[J].宇航计测技术,1994,13(3):30-34.
PARKASH A,VAID J K,MANSINGH A.Measurement of dielectric parameters at microwave frequencies of cavity perturbation technique[J].IEEE Trans MTT,1979,27(9):791-795.
BELHAEDJ-TAHAR N-E,FOURRIER-LAMER A,DE CHANTERAC H.Broad-band simultaneous measurement of complex permittivity and permeability using a coaxial discontinuity[J].IEEE Trans MTT,1990,38(1):1-7.
GHODGAONKAR D K,VARADAN V V,VARADAN V K.A free space method for measurement of dielectric constants and loss tangents at microwave frequencies[J].IEEE Trans Instrumentation and Measurement,1989,37(3):789-793.
VARADAN V V,HOLLINGER R D,GHODGAONKAR D K,et al.Free-space,broadband measurements of high-temperature,complex dielectric properties at microwave frequencies[J].IEEE Trans Instrumentation and Measurement,1991,40(5):842-846.
VASUNDARA V VARADAN,JOSE K A,VIJAY K VARADAN.In situ microwave characterization of nonplanar dielectric objects[J].IEEE Trans MTT,2000,48(3):388-394.
RENE GRIGNON,MOHAMMED N AFSAR,WANG Yong,et al.Microwave broadband free-space complex dielectric permittivity measurements on low loss solids[A].IMTC '03.Proceedings of the 20th IEEE[C].USA,2003,865-870.
MA Zhi-hong,SEICHI OKAMURA.Permittivity determination using amplitudes of transmission and reflection coefficients at microwave frequency[J].IEEE Trans MTT,1999,47(5):546-550.
GHODGAONKAR D K,VARADAN V V,VARADAN V K.Free-space measurement of complex permittivity and complex permeability of magnetic materials at microwave frequencies[J].IEEE Trans Instrumentation and Measurement,1990,39(2):387-394.
陈国强,李琦,刘金亮.HP8510C非同轴系统TRL校准技术[J].微波学报,1998,14(3):238-243.
WERNER RUEGGEBERG.Determination of complex permittivity of arbitrarily dimensioned dielectric modules at microwave frequencies[J].IEEE Trans MTT,1971,19(2):517-521.