P2-26: 2.5 dimensional beam-wave interaction program for sheet beam klystrons based on rod model

The sheet beam klystron (SBK) uses a high aspect ratio, thin rectangular beam to reduce space charge effects, increase power capability and beam-wave interaction efficiency. In this paper, a Rod model for the sheet beam was studied, and a 2.5D large signal program based on this model was developed to calculate the beam-wave interaction of SBK.