| Paper |
Title |
Page |
| THPLT110 |
Modelling of Accelerating Structures with Finite-difference Time-domain Method
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2739 |
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- E.V. Pickulin, V.N. Malyshev
LETI, Saint-Petersburg
- S.A. Silaev, Y.A. Svistunov
NIIEFA, St. Petersburg
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A finite-difference time-domain (FDTD) method is very popular for electromagnetic field modeling. The practical interest in the method is the ability to calculate fields in time domain at any time point in the accelerating structure. That is to say the FDTD method is able to model transient process taking into account the peculiarity of RF power input device. A FDTD approach for modeling of alternate phase focusing structure is presented in this paper. The modeling of lossy metals is a problem in classical formulation of FDTD method. This matter is investigated and one of the solutions is presented in this paper. There are some problems of signal processing when using time-domain method for resonant structure modeling. The matters of mode determination are also investigated and presented in this paper. The simulation results are compared with experimental data.
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