Robust Extraction of Frequency-Dependent Dielectric Properties from Time Domain Reflectometry

Chih-Ping Lin, Yin Jeh Ngui

研究成果: Conference contribution

1 引文 斯高帕斯(Scopus)

摘要

Most dielectric spectroscopy techniques require careful system calibration, tedious measurement, specially designed probes, precise input source and some even involved complicated inversion models. This study presented two robust and model-free signal processing approach to extract frequency-dependent dielectric properties from time domain reflectometry (TDR), namely phase velocity analysis (PVA) and multiple reflection analysis (MRA). PVA determines frequency-dependent apparent dielectric permittivity (ADP) from the top and end reflections in TDR signal. MRA encompasses all multiple reflections of TDR signal to measure the complex dielectric permittivity (CDP) spectrum. This innovative approach involves decomposing the first top reflection and the subsequent multiple reflections from TDR signal, comparing their spectral MRA-ratio and inverting the frequency-dependent CDP from the measured MRA-ratio. Both their reliability were evaluated numerically and experimentally from 10MHz-IGHz. Since they are independent of source function and preceding system mismatches, dielectric spectroscopy can be conveniently conducted in laboratory and field, without complicated system setup and calibration.

原文English
主出版物標題2018 12th International Conference on Electromagnetic Wave Interaction with Water and Moist Substances, ISEMA 2018
編輯Wojciech Skierucha, Agnieszka Szyplowska, Agata Pacek-Bieniek, Justyna Szerement, Aleksandra Woszczyk
發行者Institute of Electrical and Electronics Engineers Inc.
ISBN(列印)9781538645932
DOIs
出版狀態Published - 20 八月 2018
事件12th International Conference on Electromagnetic Wave Interaction with Water and Moist Substances, ISEMA 2018 - Lublin, Poland
持續時間: 4 六月 20187 六月 2018

出版系列

名字2018 12th International Conference on Electromagnetic Wave Interaction with Water and Moist Substances, ISEMA 2018

Conference

Conference12th International Conference on Electromagnetic Wave Interaction with Water and Moist Substances, ISEMA 2018
國家Poland
城市Lublin
期間4/06/187/06/18

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    Lin, C-P., & Ngui, Y. J. (2018). Robust Extraction of Frequency-Dependent Dielectric Properties from Time Domain Reflectometry. 於 W. Skierucha, A. Szyplowska, A. Pacek-Bieniek, J. Szerement, & A. Woszczyk (編輯), 2018 12th International Conference on Electromagnetic Wave Interaction with Water and Moist Substances, ISEMA 2018 [8442320] (2018 12th International Conference on Electromagnetic Wave Interaction with Water and Moist Substances, ISEMA 2018). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ISEMA.2018.8442320