Recent Development to High-Frequency Circuit Simulator

Modeling and simulation techniques have been playing a more and more important role in designing and developing high-performance traveling-wave tubes (TWT). Recent developments to the high-frequency circuit simulator (HFCS), a 3-D advanced finite-element electromagnetic-simulation tool for TWT, are presented in this paper, using new preprocessing and postprocessing architecture. And a high performance parallel preconditioner is developed. The numerical example shows that the efficiency of matrix solution is improved.