Theoretical and experimental analysis of electromagnetic coupling into microwave circuit

Ilham Zerrouk (Systems and Components Laboratory (SSCL) Electro-Magnetic Compatibility (EMC) Unit - Fez)
Mohamed Amellal (Ecole Superieure d’Electronique de l’Ouest (ESEO) Electro-Magnetic Compatibility (EMC) laboratory)
Amine Amharech (Signals and Systems (ESS) Unit)
Mohamed Ramdani (Ecole Superieure d’Electronique de l’Ouest (ESEO) Electro-Magnetic Compatibility (EMC) laboratory)
Hassane Kabbaj (Systems and Components Laboratory (SSCL) Electro-Magnetic Compatibility (EMC) Unit)

International Journal of Electrical and Computer Engineering
Vol 9, No 1: February 2019

In this paper, our work is devoted to a time domain analysis of field-to-line coupling model. The latter is designed with a uniform microstrip multiconductor transmission line (MTL), connected with a mixed load which can be linear as a resistance, nonlinear like a diode or complex nonlinear as a Metal Semiconductor Field-Effect Transistor (MESFET). The finite difference time-domain technique (FDTD) is used to compute the expression of voltage and current at the line. The primary advantage of this method over many existing methods is that nonlinear terminations may be readily incorporated into the algorithm and the analysis. The numerical predictions using the proposed method show a good agreement with the GHz Transverse Electro Magnetic (GTEM) measurement.