Anisotropic Permittivity Measurement Using a Strip Air Line System

被引:2
作者
Wu, Changying [1 ]
Gao, Yang [1 ]
Ma, Chengqian [1 ]
Yashchyshyn, Yevhen [2 ]
机构
[1] Northwestern Polytech Univ, Sch Elect & Informat, Xian 710072, Peoples R China
[2] Warsaw Univ Technol, Inst Radioelect & Multimedia Technol, PL-00665 Warsaw, Poland
关键词
Strips; Permittivity measurement; Standards; Anisotropic magnetoresistance; Calibration; Frequency measurement; Transmission line measurements; Anisotropic material; measurement; multireflect-thru calibration; permittivity; strip air line system; FREQUENCY;
D O I
10.1109/TMTT.2023.3251562
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
A strip air line system for measuring anisotropic materials in the band from 0.3 to 1 GHz is proposed. The multireflect-thru method is used to calibrate the measurement system in the whole band with a single strip air line. In the strip air line, the TEM mode propagates along the strip in the material under test (MUT). Therefore, it is possible to accurately measure the permittivity of anisotropic materials with the strip air line. Since a small portion of the electric field is parallel to the ground plane around two edges of the strip, the measured property is not purely along one direction. To obtain higher accuracy, with the help of linear combination, the properties along two directions are disentangled by two measurements. The validity and the accuracy of the system for measuring anisotropy are verified by simulation results and the measurement results of polytetrafluoroethylene (PTFE) and two anisotropic materials.
引用
收藏
页码:3865 / 3873
页数:9
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