Time Domain Analysis of the Coupling of Stochastic Electromagnetic Fields into Transmission Line Structures

• Applicant: Professor Dr.-Ing. Ralf Vick
• Subject Area: Electronic Semiconductors, Components and Circuits, Integrated Systems, Sensor Technology, Theoretical Electrical Engineering
• Term: from 2015 to 2024
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 261804593

• Final Report Year: 2022

Final Report Abstract

Within this project, the coupling of statistical electromagnetic fields into transmission line structures was investigated in time domain. As a test object, a network consisting of three single lines above a ground plane was chosen. Electrical long lines with mismatched terminations were used so that the behavior of the DUT could be investigated at critical resonant frequencies. The network was tested with both linear and nonlinear loads, e. g. a diode. In a first step, the transmission line network was investigated in the time domain excited by a single plane wave. For this purpose, a simulation model was created in MATLAB and then validated with measurements in a GTEM cell. In addition, this solution was compared with an existing solution based on the BLT equations with subsequent inverse Fourier transform in the frequency domain. Tests were carried out with both linear and nonlinear loads. In the linear case, the simulation results agree with those of an existing frequency domain solution based on the BLT equations. Subsequently, the solution for a plane wave was extended to a stochastic field. Such stochastic field was represented by the superposition of plane waves with random incidence and polarization. Thereby a certain number of waves reproduce a fixed electromagnetic boundary condition or a stirrer position in a reverberation chamber.

Publications

• “Time domain investigation of the plane wave coupling to a non-linearly loaded transmission line network,” in ESA Workshop on Aerospace EMC, Budapest, Ungarn, May 2019, pp. 1 – 6
  J. Kasper, M. Magdowski, R. Vick, L. Galeev, G. Iukhtanov, E. Y. Fedorov, and A. V. Ferenets
  
• “Transient simulation of the plane wave coupling to nonlinearly loaded transmission line networks,” in Proceedings of the Joint International Symposium on Electromagnetic Compatibility and Asia-Pacific International Symposium on Electromagnetic Compatibility. Sapporo, Japan: IEICE & IEEE, Jun. 2019, pp. 383–386
  M. Magdowski and R. Vick
  
• “Transient simulation of the pulse excitation of transmission line networks with linear and nonlinear loads in reverberation chambers,” in Progress In Electromagnetics Research Symposium, PIERS, Rom, Italien, Jun. 2019, p. 6
  M. Magdowski and R. Vick
  
• “Numerische Simulation der Einkopplung transienter elektromagnetischer Felder in nichtlinear-abgeschlossene Leitungsnetzwerke mit einem SPICE-Netzwerksimulator,” in Internationale Fachmesse und Kongress für Elektromagnetische Verträglichkeit, H. Garbe, Ed. Köln: Apprimus Verlag, Wissenschaftsverlag des Instituts für Industriekommunikation und Fachmedien an der RWTH Aachen, Mar. 2020, pp. 179–186
  M. Magdowski and R. Vick
  
• Analysis of the Stochastic Electromagnetic Field Coupling to Single and Multiconductor Transmission Line Structures, 1st ed., ser. Res Electricae Magdeburgenses. Magdeburg 2021, no. 86
  J. Kasper