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Measurement of complex terahertz dielectric properties of polymers using an improved free-space technique

文献类型：期刊论文

作者Chang, Tianying1,2; Zhang, Xiansheng2; Yang, Chuanfa2; Sun, Zhonglin2; Cui, Hong-Liang1,3
刊名MEASUREMENT SCIENCE AND TECHNOLOGY
出版日期2017-04-01
卷号28期号:4页码:8
关键词free-space method vector network analyzer gated-reflect-line calibration THz time-domain spectroscopy polymer complex dielectric properties
ISSN号0957-0233
DOI10.1088/1361-6501/aa58b5
通讯作者Chang, TY (reprint author), Jilin Univ, Coll Instrumentat & Elect Engn, Changchun 130012, Jilin, Peoples R China.
英文摘要The complex dielectric properties of non-polar solid polymer materials were measured in the terahertz (THz) band by a free-space technique employing a frequency-extended vector network analyzer (VNA), and by THz time-domain spectroscopy (TDS). Mindful of THz wave's unique characteristics, the free-space method for measurement of material dielectric properties in the microwave band was expanded and improved for application in the THz frequency region. To ascertain the soundness and utility of the proposed method, measurements of the complex dielectric properties of a variety of polymers were carried out, including polytetrafluoroethylene (PTFE, known also by the brand name Teflon), polypropylene (PP), polyethylene (PE), and glass fiber resin (Composite Stone). The free-space method relies on the determination of electromagnetic scattering parameters (S-parameters) of the sample, with the gated-reflect-line (GRL) calibration technique commonly employed using a VNA. Subsequently, based on the S-parameters, the dielectric constant and loss characteristic of the sample were calculated by using a Newtonian iterative algorithm. To verify the calculated results, THz TDS technique, which produced Fresnel parameters such as reflection and transmission coefficients, was also used to independently determine the dielectric properties of these polymer samples, with results satisfactorily corroborating those obtained by the free-space extended microwave technique.
资助项目Youth Science Funds of Shandong Academy of Sciences ; Department of Science & Technology of Shandong Province[2016GGX101010] ; Department of Science & Technology of Shandong Province[2015GGX101030] ; Ministry of Science and Technology of China[2015DFA11200] ; Innovation Program of the Shandong Academy of Sciences ; Natural Science Foundation of Shandong Province[ZR2014FP007]
WOS研究方向Engineering ; Instruments & Instrumentation
语种英语
WOS记录号WOS:000395690100002
出版者IOP PUBLISHING LTD
源URL[http://119.78.100.138/handle/2HOD01W0/450]  
专题太赫兹技术研究中心
通讯作者Chang, Tianying
作者单位1.Jilin Univ, Coll Instrumentat & Elect Engn, Changchun 130012, Jilin, Peoples R China
2.Shandong Acad Sci, Inst Automat, Jinan 250014, Shandong, Peoples R China
3.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China
推荐引用方式
GB/T 7714		 Chang, Tianying,Zhang, Xiansheng,Yang, Chuanfa,et al. Measurement of complex terahertz dielectric properties of polymers using an improved free-space technique[J]. MEASUREMENT SCIENCE AND TECHNOLOGY,2017,28(4):8.
APA Chang, Tianying,Zhang, Xiansheng,Yang, Chuanfa,Sun, Zhonglin,&Cui, Hong-Liang.(2017).Measurement of complex terahertz dielectric properties of polymers using an improved free-space technique.MEASUREMENT SCIENCE AND TECHNOLOGY,28(4),8.
MLA Chang, Tianying,et al."Measurement of complex terahertz dielectric properties of polymers using an improved free-space technique".MEASUREMENT SCIENCE AND TECHNOLOGY 28.4(2017):8.

入库方式： OAI收割

来源：重庆绿色智能技术研究院

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