© 2023 by the authorsGascón Bravo, AlbertoGarcía, S. G.Muñoz Manterola, AlejandroAñón Cancela, M.Moreno, RobertoTekbaş, KenanAngulo, L. D.2024-02-272024-02-272023-09-11IEEE Transactions on Electromagnetic Compatibility 65(6): 1900-1908(2023)0018-9375https://ieeexplore.ieee.org/document/10246364http://hdl.handle.net/20.500.12666/950Alberto Gascón Bravo(UGR) [0000-0003-1190-2248] ; Salvador G. Garcia(UGR) [0000-0001-7317-1423] ; Alejandro Muñoz Manterola(UGR) [0000-0002-2406-8128] ; Manuel Añón-Cancela [0000-0002-6218-8307] ; Roberto Moreno(UGR) [0000-0003-0032-1931] ; Kenan Tekbas (UGR) [0000-0002-0678-9001] ; and Luis D. Angulo(UGR) [0000-0002-1690-7892].This article introduces a comprehensive methodology for analyzing common-mode (CM) ferrite chokes in time-domain (TD) methods, employing lumped dispersive loads, and validates it through a typical test setup for cable crosstalk assessment. The analysis begins with the experimental characterization of CM choke material properties using a coaxial line fixture to obtain its constitutive parameters. Subsequently, a simplified lumped dispersive convolutional model is obtained, representing the impedance of the ferrite when placed on a location on the cable. The first approach adopts a multiconductor transmission line (MTL) model for the cables, solving them by a finite-difference (FDTD) space-time scheme. The second approach utilizes the classical full-wave Yee-FDTD method in conjunction with the thin-wire Holland model for cables. The accuracy of the proposed methods is evaluated by comparing simulations performed with MTL-FDTD and Holland-Yee FDTD, to experimental measurements, and results obtained with the the frequency-domain finite element method using a 3-D model of the ferrite with its constitutive parameters. Finally, the validity and performance of the methodologies are critically discussed.engAttribution-NonCommercial-NoDerivatives 4.0 Internationalhttps://creativecommons.org/licenses/by-nc-nd/4.0/Common mode (CM) chokesComplex permeabilityFerriteFinite differences time domainFinite element method (FEM)Multitransmission linesTransmission linesinfo:eu-repo/semantics/article10.1109/TEMC.2023.33096981558-187Xinfo:eu-repo/semantics/openAccess