Finding Resonant Frequencies for High Loss Dielectrics in Cylindrical Cavities

Autores UPV
Revista International Journal of RF and Microwave Computer-Aided Engineering


This article proposes the use of argument principle method (APM) to find all complex resonant frequencies in a three layer cylindrical cavity. APM guarantees that no root is lost and frequencies can be associated with the resonant mode. The roots can be used to find permittivity of a material inside a cavity