Activities per year
Abstract
Stochastic electromagnetic fields coupling to printed circuit board (PCB) traces are important to the understanding of electromagnetic compatibility at high frequencies when the circuits or systems are electrically large. In this article, it is studied both numerically and analytically, and the factors affecting the absorbed
power are investigated. We present new methods to determine the level of coupling on PCB traces or other transmission lines on a dielectric substrate. A Monte Carlo method is applied to generate random uniform fields, and the quasi-TEM transmission line model is employed to compute the response of the trace for each plane wave numerically. In the analytical method, the closed-form expressions of the zero-order and the first-order approximations are established for the PCB trace. Based on the first-order approximation method and the numerical results, a computationally efficient empirical method is developed to estimate the power received. The absorbed power increases with frequency in the electrically short case after which multiple resonances can be seen. The absorbed power in the matched case is neither the largest nor the smallest among all the cases. It increases with the square of the substrate
height but decreases with the permittivity of the substrate.
power are investigated. We present new methods to determine the level of coupling on PCB traces or other transmission lines on a dielectric substrate. A Monte Carlo method is applied to generate random uniform fields, and the quasi-TEM transmission line model is employed to compute the response of the trace for each plane wave numerically. In the analytical method, the closed-form expressions of the zero-order and the first-order approximations are established for the PCB trace. Based on the first-order approximation method and the numerical results, a computationally efficient empirical method is developed to estimate the power received. The absorbed power increases with frequency in the electrically short case after which multiple resonances can be seen. The absorbed power in the matched case is neither the largest nor the smallest among all the cases. It increases with the square of the substrate
height but decreases with the permittivity of the substrate.
Original language | English |
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Pages (from-to) | 1128-1135 |
Number of pages | 8 |
Journal | IEEE Transactions on Electromagnetic Compatibility |
Volume | 62 |
Issue number | 4 |
Early online date | 4 Dec 2019 |
DOIs | |
Publication status | Published - 1 Aug 2020 |
Bibliographical note
© 2019 IEEE. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details.Profiles
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John Frederick Dawson, CEng MIET MIEEE
- Electronic Engineering - Senior Lecturer, Former employee
Person: Academic
Activities
- 1 Academic
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Haiyan Xie
John Frederick Dawson (Host)
15 Dec 2018 → 15 Dec 2019Activity: Hosting a visitor › Academic
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Electromagnetic compatibility of electronic circuits and systems
Dawson, J. F., Robinson, M. P., Porter, S. J., Marvin, A. & Flintoft, I. D.
1/01/90 → …
Project: Other project › Miscellaneous project
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PETER: PETER: Pan-European Training, research and education network on Electromagnetic Risk Management
Dawson, J. F., Kelly, T. & Trefzer, M. A.
1/04/19 → 30/09/23
Project: Research project (funded) › Research