| 毫米波段复介电常数测量的开放腔法改进 |
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| 引用本文： | 桂勇锋,窦文斌,姚武生 李佩.毫米波段复介电常数测量的开放腔法改进[J].微波学报,2010,26(3):38-43. |
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| 作者姓名： | 桂勇锋 窦文斌 姚武生 李佩 |
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| 作者单位： | 1. 中国电子科技集团公司第三十八研究所,合肥,230031
2. 毫米波国家重点实验室,东南大学,南京,210096 |
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| 摘 要： | 为实现毫米波段低损耗电介质材料的复介电常数高精度测量,文章主要关注开放腔法宽频带内腔长的精确确定、相对介电常数反演的多值解、误差的完整分析、测试系统检验以及自动测量等理论和技术难题.显然,这些问题的存在会影响开放腔法测量的正确性和精确性.通过研制和构建Ka波段上的开放腔自动测试系统,成功解决上述问题,完善和发展了开放腔测量理论.误差分析表明:本测试系统对相对介电常数和损耗正切的相对不确定度分别小于0.17%和20.4%.自动测试系统操作简便,测试结果可信且精度高.
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| 关 键 词： | 毫米波 复介电常数测量 低损耗 开放腔法 经检验系统 |
The Improvement of Open Resonator Method for Dielectric Measurement at Millimeter Wavelengths |
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| GUI Yong-feng,DOU Wen-bin,YAO Wu-sheng,LI Pei.The Improvement of Open Resonator Method for Dielectric Measurement at Millimeter Wavelengths[J].Journal of Microwaves,2010,26(3):38-43. |
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| Authors: | GUI Yong-feng DOU Wen-bin YAO Wu-sheng LI Pei |
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| Affiliation: | 1.East China Research Institute of Electronic Engineering,Hefei 230031,China;2.State Key Lab of MMW,Southeast University,Nanjing 210096,China |
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| Abstract: | An open resonator system is designed and constructed for the accurate measurement of complex permittivity at Ka band.It is solved successfully that how to obtain the accurate cavity length over a broad band,how to determinate the unique permittivity,how to complete the systematic error analysis and how to check a measurement system.The error analysis shows that the relative standard deviation of the measurement system is less than 0.17% for permittivity and 20.4% for loss tangent.Software that is developed to controls the system improves the measurement efficiency greatly. |
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| Keywords: | Millimeter wave Complex permittivity measurement Low loss tangent Open resonator technique Checked system |
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