Open Access Open Access  Restricted Access Subscription or Fee Access

Modeling Circuits Radiation with Electromagnetic Inverse Method in Time Domain

(*) Corresponding author

Authors' affiliations



In the power electronics domain, the circuits emit an electromagnetic radiation on a band at various frequencies. Hence, the frequency domain electromagnetic inverse method based on the near-field technique, is not suitable for modeling the radiation of this circuit’s type. Therefore, it is necessary to develop the electromagnetic inverse method in the time domain with the aim to determine an equivalent radiating model. By analogy to the frequency inverse method, the method proposed in this paper, is based on the analytical equations that describe the magnetic radiations of the simple dipoles in the time domain. An optimization method based on the genetic algorithms is used to identify the parameters of equivalent radiating dipoles. In order to avoid the measurement errors, the equivalent radiation model was firstly performed, on the basis of the temporal cartography calculated analytically. To test our method relative to measurement errors, the inverse method in the time domain was secondly applied to the cartography of near field measured above a real structure. The comparison of measured cartography to that's calculated using the obtained parameters of radiating dipole's, show that the suggested method is suitable for identifying the real sources of the studied structure.
Copyright © 2016 Praise Worthy Prize - All rights reserved.


Electromagnetic Inverse Method; Time Domain Modeling; Near-Field Measurement; Genetic Algorithms

Full Text:



Endo, H., T. Takagi, and Y. Saito, “A new current dipole model satisfying current continuity for inverse magnetic field source problems”, IEEE Transactions on Magnetics, Vol. 41, No. 5, 1748-1751, May 2005.

Song, H., J. Chen, D. Zhou, D. Hou, and J. Lin, “An equivalent model of magnetic dipole for the slot coupling of shielding cavity”, 8th International Symposium on Antennas, Propagation and EM Theory, ISAPE 2008, 970-973, Nov. 2-5, 2008.

Junge, A. and F. Marliani, “Prediction of DC magnetic fields for magnetic cleanliness on spacecraft”, IEEE International Symposium on Electromagnetic Compatibility (EMC), 2011, 834-839, Aug. 14-19, 2011.

Sghaier, N., Latrach, L., Gharsallah, A., Analysis and Optimization of a PIFA Antenna Radiation Performance in the Presence of a User, (2015) International Journal on Communications Antenna and Propagation (IRECAP), 5 (6), pp. 362-366.

Bou-El-Harmel, A., Benbassou, A., Belkadid, J., Design of a Three-Dimensional Antenna UHF in the Form Cubic Intended for RFID, Wireless Sensor Networks (WSNs) and RFID Sensor Networks (RSNs) Applications, (2014) International Journal on Communications Antenna and Propagation (IRECAP), 4 (6), pp. 260-264.

Vives-Gilabert, Y., Arcambal, C., Louis, A., Daran,F., Eudeline, P.Mazari, “Modeling magnetic radiations of electronic circuits using near-field scanning method”, IEEE Trans. EMC, 2007, 49, pp. 391–400.

N. C. Kapsalis, S.-D. J. Kakarakis, and C. N. Capsalis, “Prediction of multiple magnetic dipole

model parameters from near field measure-ments employingstochastic algorithms”, Progress In Electromagnetics Research Letters, Vol. 34, 111–122, 2012

Sofiene Saidi, and Jaleleddine Ben Hadj Slama, “Analysis and modeling of power MOSFET radiation”, Progress In Electromagnetics Research M, Vol. 31, 247-262, 2013.

Bessem Zitouna and Jaleleddine Ben Hadj Slama, “Time Domain Electromagnetic Inverse Method: Implementation and Validation for Simple Structures”, Proc. of the 2014 International Symposium on Electromagnetic Compatibility (EMC Europe 2014), Gothenburg, Sweden, September 1-4, 2014.

B. Ravelo , “E-field extraction from H-near-field in time-domain by using pws method”, Progress In Electromagnetics Research B, Vol. 25, 171- 189, 2010.

Slim, H.H., Braun, S., Gu¨ lten, E., Frech, A., Russer, P. “Automated measurement of intermittent signals using a time-domain EMI measurement system”, Proc IEEE Int. Symp. EMC, Austin, Texas, USA, August 2009, pp. 232–235

Winte, W., Herbrig, M., “Time domain measurement in automotive applications”, Proc. IEEE Int. Symp. EMC, Austin, Texas, USA, August 2009, pp. 109–115.

Rioult, J., Seethramdoo, D., Heddebaut, M., “Novel electromagnetic field measuring instrument with real-time visualization”, Proc IEEE Int. Symp. EMC, Austin, Texas, USA, August 2009, pp. 133–38

Y. Liu, B. Ravelo, A. K. Jastrzebski and J. Ben Hadj Slama, “Calculation of the Time Domain z-Component of the EM-Near-Field from the x- and y-Components”, 41st European Microwave Conference 2011.

Y. Liu, B. Ravelo and A. K. Jastrzebski, “Calculation of Time-Domain Near-Field Ex,y,z(t) from Hx,y(t) with PWS and FFT Transforms,” EMC Europe 2012, Roma, Italy, Sep. 17-20 2012.

O. Aouine, C. Labarre, F. Costa, P. Baudesson and J. Ecrabey, “Identification of the radiated sources inside a variable speed drive from near-field measurements”, IEEE Symposium on embedded EMC, 2emc, Rouen 2007.

Lotfi Beghou, François Costa, and Lionel Pichon, “Detection of Electromagnetic Radiations Sources at the Switching Time Scale Using an Inverse Problem-Based Resolution Method—Application to Power Electronic Circuits”, IEEE Transactions on electromagnetic compatibility, Vol. 57, No. 1, November 2015.

Baudry, D., Arcambal, C., Louis, A., Mazari, B., Eudeline, P., “Applications of the near-field techniques in EMC investigations”, IEEE Trans. EMC, 2007, 49, (3), pp. 485–493.

Bessem ZITOUNA, and Jaleleddine BEN HADJ SLAMA, “Development and Validation of Analytic Equations of the Electromagnetic Fields Radiated by the Elementary Dipoles in Time Domain”, 2013 10th International Multi-Conference on Systems, Signals & Devices (SSD) Hammamet, Tunisia, March 18-21, 2013.

Joan-Ramon Regué, Miquel Ribó, , Josep-Maria Garrell, and Antonio Martín, “A Genetic Algorithm Based Method for Source Identification and Far-Field Radiated Emissions Prediction From Near-Field Measurements for PCB Characterization”, IEEE Transactions on electromagnetic compatibility, Vol. 43, No. 4, November 2001.

A. Rangel-Merino, J. L. López-Bonilla, R. Linares y Miranda, “Optimization Method based on Genetic Algorithms”, Apeiron, Vol. 12, No. 4, October 2005.

Sofiene Saidi and Jaleleddine Ben Hadj Slama, “Effect of Genetic Algorithm parameters on Convergence of the Electromagnetic Inverse Method”, 8th International Multi-Conference on Systems, Signals & Devices (SSD) 2011, Sousse, Tunisia, Mar. 22-25, 2011.


  • There are currently no refbacks.

Please send any question about this web site to
Copyright © 2005-2023 Praise Worthy Prize