Electromagnetic fields in nonuniform disk-loaded waveguides

TL;DR

This paper discusses methods for tuning nonuniform disk-loaded waveguides, emphasizing the need for numerical simulations and measurements due to the complexity introduced by parameter variations.

Contribution

It introduces a general approach for tuning nonuniform disk-loaded waveguides and highlights the limitations of simple detuning parameters in complex cases.

Findings

Simple detuning values are only effective for slowly varying parameters.

Full numerical simulation is necessary for complex nonuniform waveguides.

Tuning can be based on bead-pull field measurements after simulations.

Abstract

On the base of general approach we obtain some results that can be useful in the process of tuning of nonunifrom disc-loaded waveguides. Our consideration has shown that simple values that characterize the detuning of the cells can be introduced only for the disc-loaded waveguide with parameters that change very slow. In general case it is needed to conduct full numerical simulation of specific disc-loaded waveguide and obtain all necessary coupling coefficients. After that one can start the tuning process on the base of bead-pull field distribution measurements.