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Xiaozhu LU, Lingnan SONG, Hui XUet al., “Study on the Impact of Imbalance between Transmission Lines on Crosstalk: a Novel Perspective of Displacement Current,” Chinese Journal of Electronics, vol. x, no. x, pp. 1–11, xxxx doi: 10.23919/cje.2024.00.049
Citation: Xiaozhu LU, Lingnan SONG, Hui XUet al., “Study on the Impact of Imbalance between Transmission Lines on Crosstalk: a Novel Perspective of Displacement Current,” Chinese Journal of Electronics, vol. x, no. x, pp. 1–11, xxxx doi: 10.23919/cje.2024.00.049

Study on the Impact of Imbalance between Transmission Lines on Crosstalk: a Novel Perspective of Displacement Current

doi: 10.23919/cje.2024.00.049
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  • Author Bio:

    Xiaozhu LU received the B.S. degree from Tsinghua University, Beijing, China, and is currently pursuing his Ph.D. degree at Beihang University, School of Electronics and Information Engineering. His research interest focuses on electromagnetic field measurements, the mechanism of electromagnetic emission, and electromagnetic coupling characteristics. (Email: luxiaozhu_idea@buaa.edu.cn)

    Lingnan SONG received the B.S.degree in optical engineering from Zhejiang University, Hangzhou, China, in 2014, and the M.S. and Ph.D. degrees in electrical and computer engineering from the University of California at Los Angeles (UCLA), Los Angeles, CA, USA, in 2016 and 2020, respectively. She was with UCLA under the supervision of Prof. Yahya Rahmat-Samii at the Antenna Research, Analysis, and Measurement Laboratory. She is currently an Assistant Professor at Beihang University, Beijing, China. Her primary research interests include wireless telemetry antenna systems, implantable antennas, wearable antennas, antenna and human body interactions, RFID, reconfigurable antennas, and electromagnetic compatibility measurement techniques. Dr. Song was the First Place Winner in the Ernest K. Smith USNC-URSI Student Paper Competition of the year 2017 and a recipient of the 2019 International Symposium on Electromagnetic Theory (EMTS) Young Scientist Award and the 2021 Applied Computational Electromagnetics Society (ACES) Young Scientist Award. (Email: lingnan_song@buaa.edu.cn)

    Hui XU received the B.E. degree in electronic and information engineering from Beihang University, China, in 2014, and the Ph.D. degree from Beihang University, China, in 2020. He joined the Research Institute for Frontier Science, Beihang University in 2020, and is working as a research associate currently. His current research interests include electromagnetic compatibility design in system level, electromagnetic radiation modeling, and electromagnetic emission source analysis of equipments and circuits. (Email: xuhui@buaa.edu.cn)

    Donglin SU received the B.S., M.S., and Ph.D. degrees in electrical engineering from Beihang University, Beijing, China, in 1983, 1986, and 1999, respectively. In 1986, she joined the Faculty of School of Electronics and Information Engineering, BUAA, where she was first an Assistant, then a Lecturer, later on an Associate Professor, and is currently a Full Professor. From 1996 to 1998, she was a Visiting Scholar with the Department of Electrical Engineering, University of California, Los Angeles, Los Angeles, CA, USA, under the BUAA-UCLA Joint Ph.D. Program. She has authored more than 100 papers and coauthored several books. Her research interests include the numerical methods for microwave and millimeter-wave integrated circuits and systematic electromagnetic compatibility design of various aircrafts. Dr. Su is a Member of the Chinese Academy of Engineering. She is a Fellow of the Chinese Institute of Electronics. She is the Chair of Beijing Chapter of the IEEE Antennas and Propagation Society and the Deputy Chair of the Antennas Society, Chinese Institute of Electronics. She was the recipient of the National Science and Technology Advancement Award of China in 2007 and 2012, and the National Technology Invention Award of China in 2018. She’s also the editor-in-chief of the journal Electromagnetic Science. (Email: sdl@buaa.edu.cn)

  • Corresponding author: Email: lingnan_song@buaa.edu.cn
  • Available Online: 2024-03-19
  • This paper systematically studies the impact of imbalances between adjacent lines and effects on crosstalk. A novel perspective of displacement current is introduced to analyze and explain the simulated observations. The imbalances caused by coupling between single-single, single-differential, and differential-differential lines are studied and analyzed by considering the near-field coupling through the generated displacement currents. Measurements are conducted for various cases of coupled adjacent lines. An equivalent model considering the variation of displacement current with geometrical parameters is also proposed, and the corresponding coupling coefficients are extracted based on simulations to characterize the impact of imbalances. The methods and results presented in this paper provide useful guidelines for designing high-speed circuit layouts with closely spaced transmission lines.
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