Simulation of metallic photonic bandgap structures for accelerator applications

Use of microwave photonic bandgap (PBG) structures is a promising approach to improving the performance of rf accelerator structures in terms of better control of wakefields. We have developed the Photonic Band Gap Structure Simulation (PBGSS) code to study bulk properties of electromagnetic TE and TM wave propagation in two-dimensional (2D) PBG structures. The eigenmodes are calculated and global photonic bandgaps are determined. Rf accelerator applications of PBG cavities are discussed.