Search results for "Periodic Structures"

showing 2 items of 2 documents

Multipactor radiation analysis within a waveguide region based on a frequency-domain representation of the dynamics of charged particles

2009

[EN] A technique for the accurate computation of the electromagnetic fields radiated by a charged particle moving within a parallel-plate waveguide is presented. Based on a transformation of the time-varying current density of the particle into a time-harmonic current density, this technique allows the evaluation of the radiated electromagnetic fields both in the frequency and time domains, as well as in the near- and far-field regions. For this purpose, several accelerated versions of the parallel-plate Green's function in the frequency domain have been considered. The theory has been successfully applied to the multipactor discharge occurring within a two metal-plates region. The proposed…

electromagnetic fieldsMultipactor effectElectromagnetic fieldcurrent densityImage theoryGreens-FunctionElectrodynamicsAcceleratorelectrodynamicsFinite difference time-domain analysisElectromagnetic radiationmicrowave switchesGreen's function methodslaw.inventionPeriodic StructuresOpticsBreakdownCurrent densitylawTEORIA DE LA SEÑAL Y COMUNICACIONESGreen's functionsFrequency-domain analysisfinite difference time-domain analysisEwald MethodPhysicsTeoría de la Señal y las Comunicaciones2-Dbusiness.industryElectromagnetic fieldsMicrowave switcheswaveguidesParallel plate waveguideCharged particleComputational physicsfrequency-domain analysisTransformation (function)Frequency domainModesDischarge3325 Tecnología de las TelecomunicacionesMultipactor effectbusinessWake-FieldWaveguidesWaveguideCurrent densitySimulationPhysical Review E
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Estimates of the modeling error generated by homogenization of an elliptic boundary value problem

2016

Erworben im Rahmen der Schweizer Nationallizenzen (http://www.nationallizenzen.ch)

posteriori error estimateshomogenizationmodeling error010103 numerical & computational mathematics01 natural sciencesHomogenization (chemistry)Elliptic boundary value problem510 Mathematicselliptic boundary value problemsBoundary value problemNumerical testsperiodic structures0101 mathematicsMathematicsHomogenization510: Mathematik010102 general mathematicsMathematical analysisElliptic boundary value problemPeriodic structureModeling error10123 Institute of MathematicsComputational MathematicsExact solutions in general relativityRate of convergenceNorm (mathematics)A priori and a posteriori2605 Computational MathematicsA posteriori error estimateJournal of Numerical Mathematics
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