Efficiency of the IE-MoM approach in the analysis of dielectric bodies embedded in a cavity

This paper presents the analysis of dielectric bodies embedded in cavities made of perfect conducting metal using numerical approaches. For a case study of resource requirements a Dielectric Resonator Filter has been designed. Different numerical approaches were presented: FEM, FDTD, FIT, MoM and they were compared due to their computational effectiveness. Two of those method FIT and MoM showed a much higher efficiency than others. Their resource requirements were compared using simulations of a case study device. This paper shows that our Method of Moment with use of Green´s function for stratified media has the best performance in solving dielectric bodies embedded in metal cavity. Therefore, there is a need to develop this method.