Coaxial Wave Transformer with Bends

A method for calculating coefficients of conversions and reflections of waves in complicated waveguides and transmission lines has been developed. The suggested theory is applied to the analysis of wave processes, and to the optimization of wave transformers based on smoothly irregular coaxial lines with large cross sections. Such converters are widely used for transformation of accelerating high voltage pulses in high current nanosecond accelerators in order to improve the matching with electron guns. In addition, we consider a possibility of coiling such transformers to decrease their size.