A method for reconstruction of the parameters of the Debye or Lorentzian dispersive media is proposed. In this method, S-parameters of a simple parallel-plate fixture filled with the dispersive medium are measured and modeled using the transmission line equations, provided a single TEM mode propagating in this parallel-plate waveguide. The genetic algorithm is used for searching the parameters of the dispersive medium by means of minimizing the discrepancy between the measured and modeled S-parameters. The results are verified using the full-wave FDTD modeling technique.
J. Zhang et al., "Reconstruction of the Parameters of Debye and Lorentzian Dispersive Media using a Genetic Algorithm," Proceedings of the IEEE International Symposium on Electromagnetic Compatibility (2003, Boston, MA), vol. 2, pp. 898-903, Institute of Electrical and Electronics Engineers (IEEE), Aug 2003.
The definitive version is available at https://doi.org/10.1109/ISEMC.2003.1236728
IEEE International Symposium on Electromagnetic Compatibility (2003: Aug. 18-22, Boston, MA)
Electrical and Computer Engineering
Electromagnetic Compatibility (EMC) Laboratory
Keywords and Phrases
Debye Dispersive Media; Lorentzian Dispersive Media; S-Parameters; TEM Mode Propagation; Dispersive Media; Electromagnetic Wave Propagation; Finite Difference Time Domain; Finite Difference Time-Domain Analysis; Full-Wave FDTD Modeling; Genetic Algorithms; Parallel-Plate Fixture; Parallel-Plate Waveguide; Parameter Reconstruction; Parameter Searching; Transmission Line Equations; Transmission Lines; Debye And Lorentzian Dispersion Laws; FDTD Modeling; Genetic Algorithm; Telegrapher's Equations
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