| 用于超宽带介电常数测量的Vivaldi天线设计与仿真 |
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| 引用本文： | 郭晨,刘策,庞锐.用于超宽带介电常数测量的Vivaldi天线设计与仿真[J].现代电子技术,2012,35(19):85-88. |
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| 作者姓名： | 郭晨 刘策 庞锐 |
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| 作者单位： | 长安大学,陕西西安,710064 |
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| 基金项目： | 中国博士后基金面上资助项目(20110491639);中央高校基本科研业务项目(CHD2011JC049;CHD2011ZD004;CHD2011TD012;CHD2011JC084);航空科学基金(20100818020;20100818022) |
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| 摘 要： | 在传统Vivaldi天线结构的基础上,设计了两种适用于混合材料介电常数测量的改进型渐变槽Vivaldi天线以及同轴馈电型对踵Vivaldi天线,并利用三维电磁仿真软件HFSS对这几种Vivaldi天线的性能进行优化分析。通过对不同结构Vivaldi天线的对比,分析结果可以看出这两种改进型渐变槽Vivaldi天线和同轴馈电型对踵Vivaldi天线在频段、带宽、驻波比等方面均达到超宽带介电常数测量系统的设计要求,可应用于测量混合材料的介电常数。
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| 关 键 词： | 介电常数 超宽带 Vivaldi天线 对踵Vivaldi |
Design of Vivaldi antenna for measuring UWB dielectric constant |
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| GUO Chen
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LIU Ce
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PANG Rui.Design of Vivaldi antenna for measuring UWB dielectric constant[J].Modern Electronic Technique,2012,35(19):85-88. |
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| Authors: | GUO Chen LIU Ce PANG Rui |
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| Affiliation: | (Chang’an University,Xi’an 710064,China) |
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| Abstract: | Based on the full research of the traditional Vivaldi antenna characteristics,a tapered slot Vivaldi antenna with impedance transformer and an coaxial-fed antipodal Vivaldi antenna are designed for the measurement of dielectric constant.Antennas performance are analyzed and optimized by using of 3D electromagnetic simulation software HFSS.From the simulation results,it is concluded that the working frequency,bandwidth and VSWR performance of the proposed Vivaldi antennas achieved the design targets of the ultra-wideband dielectric sensing system for the dielectric constant measurement. |
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| Keywords: | dielectric constant ultra-wide band(UWB) Vivaldi antenna antipodal Vivaldi |
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