De-embedding Technique for Extraction and Analysis of Insulator Properties in Cables

Authors

  • Wei-Hsiu Tsai Department of Electronic and Computer Engineering National Taiwan University of Science and Technology, Taipei 10607, Taiwan https://orcid.org/0009-0007-3254-4255
  • Ding-Bing Lin Department of Electronic and Computer Engineering National Taiwan University of Science and Technology, Taipei 10607, Taiwan https://orcid.org/0000-0003-1980-0609
  • Po-Jui Lu Department of Electronic and Computer Engineering National Taiwan University of Science and Technology, Taipei 10607, Taiwan
  • Tzu-Fang Tseng Department of CTO Office Bizlink International Corporation, New Taipei 23533, Taiwan

DOI:

https://doi.org/10.13052/2024.ACES.J.400608

Keywords:

Cable, characterization, de-embedding, dielectric constant, Nicolson-Ross-Weir (NRW) method

Abstract

This work utilizes the Nicolson-Ross-Weir (NRW) method to analyze the frequency-dependent material properties of the insulator inside cables. These properties include ε(f), μ(f), and tanδ. Common methods for this analysis include the open-ended coaxial probe method, free space method, resonant method, and transmission/reflection line method. Each method has a suitable structure and may require additional samples for measurement. Our proposed method can calculate the real material properties of the insulation after foaming in the cable following extrusion, up to 40 GHz. This study also compiles the effects of various factors on the extraction of material parameters and provides a detailed analysis of potential sources of error. We observed that variations in production can introduce discrepancies after de-embedding, which can result in anomalies at the dissipation factor curve. Finally, we propose a correction method that effectively improves the accuracy of the extracted dielectric constant.

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Author Biographies

Wei-Hsiu Tsai, Department of Electronic and Computer Engineering National Taiwan University of Science and Technology, Taipei 10607, Taiwan

Wei-Hsiu Tasi received a B.S. degree in Mathematics from the Fu Jen Catholic University, New Taipei, Taiwan, in 1999, and an M.B.A. degree in industrial management from the National Taiwan University of Science and Technology (Taiwan Tech), Taipei, Taiwan, in 2019. He is pursuing a Ph.D. degree in the department of electronic and computer engineering from the National Taiwan University of Science and Technology (Taiwan Tech) under the supervision of Prof. Ding-Bing Lin. He is currently an Engineer with BizLink International Corp., New Taipei, Taiwan. His research interests include high-speed transmission techniques and high-frequency measurement techniques

Ding-Bing Lin, Department of Electronic and Computer Engineering National Taiwan University of Science and Technology, Taipei 10607, Taiwan

Ding-Bing Lin (S’89-M’93-SM’14) received the M.S. and Ph.D. degrees in electrical engineering from National Taiwan University, Taipei, Taiwan, in 1989 and 1993, respectively. From August 1993 to July 2016, he was in the faculty of the Electronic Engineering Department, National Taipei University of Technology, Taipei, Taiwan, where he was an Associate Professor, a Professor and a Distinguished Professor in 1993, 2005 and 2014, respectively. Since August 2016, he had been with National Taiwan University of Science and Technology, Taipei, Taiwan, where he is currently a Professor in the Electronic and Computer Engineering Department. His research interests include wireless communication, antennas, high-speed digital transmission and microwave engineering. From 2015 to 2018, he served as the Taipei Chapter Chair, IEEE EMC society. Since 2022, he serves as the Taipei Chapter Chair, IEEE AP society. He also serves as Associate Editor of IEEE Transactions of Electromagnetic Compatibility since 2019 and Editorial Board member of the International Journal of Antennas and Propagation since 2014. He has published more than 250 papers in international journals and conferences. Lin was the recipient of the Annual Research Outstanding Award of the College of Electrical Engineering and Computer Science in 2004, 2006 and 2008. Subsequently, the College of Electrical Engineering and Computer Science awarded him the College Research Outstanding Award to highlight his research achievements. He was also the recipient of the Taipei Tech Annual Outstanding Research Award in 2008. Lin was the recipient of the Annual Research Outstanding Award of the National Taiwan University of Science and Technology in 2024.

Po-Jui Lu, Department of Electronic and Computer Engineering National Taiwan University of Science and Technology, Taipei 10607, Taiwan

Po-Jui Lu received the B.S. degree from Department of Electrical Engineering, National University of Kaohsiung, Kaohsiung, Taiwan, in 2022, and the M.S. degree in Electronic and Computer Engineering from the National Taiwan University of Science and Technology, Taipei, Taiwan, in 2024. His research interests includes high-frequency measurement techniques, signal integrity and power integrity.

Tzu-Fang Tseng, Department of CTO Office Bizlink International Corporation, New Taipei 23533, Taiwan

Tzu-Fang Tseng received the B.S. degree in electrical engineering from National Taiwan University, Taipei, Taiwan, in 2009, and the Ph.D. degree in photonics and opto-electronics from National Taiwan University, Taipei, Taiwan, in 2015. She started working in industry in 2015. Her research interests include MMW signal transmission, signal integrity in high-speed cables and connectors, and optical planar lightwave circuit design and applications.

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Published

2025-06-30

How to Cite

[1]
W.-H. . Tsai, D.-B. . Lin, P.-J. . Lu, and T.-F. . Tseng, “De-embedding Technique for Extraction and Analysis of Insulator Properties in Cables”, ACES Journal, vol. 40, no. 06, pp. 550–563, Jun. 2025.

Issue

2025: Vol 40 Iss 6

Section

General Submission

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