Hollow Core Dielectric EBG Waveguide to feed Microwave Ion Sources

This paper presents a dielectric woodpile waveguide, operating at 18 GHz, that can sustains up to 50 kV DC voltages and can be used to feed and insulate microwave high voltage ion sources from grounded RF generators. The design carried out through MPB simulation software has been validated through Ansys HFSS full-wave simulation of the complete structure. The metallic-to-woodpile waveguide transition optimization gives a very low maximum insertion loss of 0.3 dB over a 3.75% bandwidth.