Theory, Simulation, and Experiment on Extended Mixed-Mode S-Parameters in Three-Conductor Lines

Zhang, Nan; Kim, Kwang‐Ho; Lee, Ho-Sang; Nah, Wansoo

doi:10.1109/temc.2017.2665582

Cited by 9 publications

(1 citation statement)

References 15 publications

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“…where the current imbalance is represented by h. An extended mixed-mode S-parameters matrix defined based on this definition is shown in [93]. When h = 0.5, (45) coincides with the canonical decomposition in (11).…”

Section: B Modelling Of Mode Conversion In Transmission Linesmentioning

confidence: 99%

Review of Mode Conversion and Modal Analysis in Electromagnetic Compatibility

Illiano,

Wu,

Grassi

et al. 2024

IEEE Access

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Undesired conversion between common-mode (CM) and differential-mode (DM) noise often occurs in modern electronic and electrical systems, posing challenges in terms of Electromagnetic Compatibility (EMC). Modal analysis represents a crucial tool in EMC investigation and provides insight into the mechanism underlying mode conversion. By inspecting CM and DM behaviors and their interconversion, it allows for understanding of conducted emission propagation mechanisms, drives electromagnetic interference (EMI) filter design towards optimal/tailored solutions, and enables the possibility to identify the main contributors to the radiated emission phenomenon. This paper offers a comprehensive review of mathematical methodologies and modelling strategies for EMC-oriented modal analysis, with particular emphasis on mode conversion phenomena. To this end, modal decomposition techniques and standard parameters for quantifying mode conversion are summarized and compared. Additionally, the paper provides an overview and in-depth discussion of different scenarios and test cases in which mode conversion occurs, with the final goal to achieve a systematic comprehension of its root causes and consequences within power and communication systems. Eventually, a survey of circuit modelling approaches for mode conversion is presented, offering insights into addressing this phenomenon effectively.

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Section: B Modelling Of Mode Conversion In Transmission Linesmentioning

confidence: 99%

Review of Mode Conversion and Modal Analysis in Electromagnetic Compatibility

Illiano,

Wu,

Grassi

et al. 2024

IEEE Access

View full text Add to dashboard Cite

show abstract

Common mode far field radiation mechanisms and prediction of a buck converter with cables based on common mode voltage mutation method

He,

Wang,

Zhao

et al. 2024

IET Power Electronics

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In the field of electromagnetic compatibility (EMC) research, the knowledge of the formation mechanism of the far field electromagnetic radiation and its prediction is essential for the electromagnetic noise suppression design of a switched mode power supply. This paper investigates the equivalent driving sources of the common mode (CM) current of a Buck converter with cables. Based on the concept of CM voltage mutation, this paper proposes two mechanism models of the same‐direction CM voltage driving mode and the opposite‐direction CM voltage driving mode and derives the approximate analytical formulas for the far field intensity estimation of the horizontal cables. To evaluate the predictive effectiveness of the CM far field radiation model, a 30 MHz very high frequency (VHF) Buck prototype with shielded cables is built and tested, and a shielding shell and low impedance ground conductor suppression designs are then verified. The CM electromagnetic radiation mechanisms of a non‐isolated power converter are demonstrated here. The proposed electromagnetic radiation models, approximate analytical formulas, and improvement design can help to advance the CM radiation analysis and optimization design.

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Mode analysis of adjacent differential-paired lines using extended mixed-mode S-parameters

Zhang

Nah

2018

2018 IEEE International Symposium on Electromagnetic Compatibility and 2018 IEEE Asia-Pacific Symposium on Electromagnetic Comp

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Theory, Simulation, and Experiment on Extended Mixed-Mode S-Parameters in Three-Conductor Lines

Cited by 9 publications

References 15 publications

Review of Mode Conversion and Modal Analysis in Electromagnetic Compatibility

Review of Mode Conversion and Modal Analysis in Electromagnetic Compatibility

Common mode far field radiation mechanisms and prediction of a buck converter with cables based on common mode voltage mutation method

Mode analysis of adjacent differential-paired lines using extended mixed-mode S-parameters

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