New numerical method for eigenmodes computation in ferrite stripline cavities with complex central conductor shape

Abstract

This paper describes a new method for computing eigenmodes resonance frequencies in ferrite stripline cavities. Study of eigenmodes in ferrite cavities is an essential step in the design of ferrite circulators. This new method allows to determine resonant frequencies for complex central conductor shapes (i.e. different from the disk) which have never been studied analytically in the literature. In addition, calculation is nearly 1000 times faster than a 3D EM simulation, thus reducing the design time of ferrite circulators.