IEEE Microwave and Guided Wave Letters · 2000 · 18 citations · 8 references
ComputingComputational EngineeringElectrical EngineeringComputational ElectromagneticsComputational PhysicsScientific ComputingFinite Difference MethodsFinite Difference Time Domain AnalysisMesh GenerationReduced-order ModelingTime Integration2D Electromagnetic ModelingFinite Difference DiscretizationFinite Difference SchemesFinite Difference Time Domain ModelingFinite Difference Time Domain SimulationReduced-order Electromagnetic ModelingTime-domain Modeling
A new method combining a finite difference method and a reduced order model (ROM) algorithm is presented for two-dimensional (2-D) electromagnetic problems. The problem space is subdivided into subdomains of a generic type. By discretizing the spatial derivatives in a way similar to the finite-difference in time-domain technique (FDTD), the state equations are written down in each subdomain. From that, an FDTD-subdomain model is derived. Finally, the different subdomains are reconnected and the original problem is solved by a leapfrog time-stepping algorithm. Some numerical results are presented to illustrate the new approach.
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