Modelling techniques for dual-mode reconfigurable filters used in satellite applications

Reconfigurable filters play an important role in flexible satellite payloads. In this work we show how to advantageously employ EM numerical techniques (namely FEM and Mode Matching) to optimize the dimensioning of a recently proposed implementation of fully reconfigurable dual-mode filters for OMUX applications. The proposed solution (based on the use of dielectric tuning screws and stepper micro-motors) allows the realization of compact filter units. The modelling techniques used in their design are of fundamental importance for shortening development times and anticipating technical problems.