Fast simulation of electromagnetic slow-wave structures

We present results of a model for fast end-to-end simulation of extended slow-wave structures, which obtains a similarly reduced representation for Maxwell´s equations directly from 3-D numerical simulations of individual cavities (cells) of the structure. We will demonstrate that our method retains the advantages of the equivalent circuit models, but with the accuracy of a full 3-D simulation that normally would be impractical. In addition, the method provides the complete 3-D electromagnetic field structure, that may be used to compute interactions with an electron beam using a large-signal simulation code such as TESLA.