RT info:eu-repo/semantics/article T1 A Unified View of DI- and ETD-FDTD Methods for Drude Media A1 Pereda, José A A1 Grande Sáez, Ana María AB Aunifiedviewofdirect-integration (DI) andexponentialtime-differencing (ETD)methods to incorporateDrudemedia, suchasisotropic plasma andmicrowave graphene, intofinite-difference timedomain (FDTD) simulators isprovided.To this end, theDrude constitutiverelation is expressed in integral formandtheDI integrators areobtainedbyapplyingquadraturerules.Analogously, theETDintegratorsare obtainedby starting fromthe variationof constants formula andapplying the samequadrature rules as in theDI case. This approachallowsonetodirectlycomparethetwofamiliesofmethods. Inaddition,theaccuracyof each integrator isdiscussedandthestabilityconditionof the resulting FDTD schemes is derived in exact closed formbyapplyingthevonNeumannmethod. PB Institute of Electrical and Electronics Engineers (IEEE) SN 0018-926X YR 2022 FD 2022 LK https://uvadoc.uva.es/handle/10324/82076 UL https://uvadoc.uva.es/handle/10324/82076 LA spa NO J. A. Pereda and A. Grande, "A Unified View of DI- and ETD-FDTD Methods for Drude Media," IEEE Transactions on Antennas and Propagation, vol. 70, no. 8, pp. 7334-7337, Aug. 2022 NO Producción Científica DS UVaDOC RD 23-ene-2026