Frequency-domain finite-volume simulations

This paper presents recent investigations that aim at providing an efficient frequency-domain solution of models that are obtained from a finite-volume space discretization. Traditionally, the finite-volume method is used in conjunction with a time-domain solver, however, when applied to resonant devices, such as litters and diplexers, a frequency-domain solution is attractive. Since direct solutions of the involved systems suffer from a prohibitively high computational load, the application of model order reduction techniques is advantageous. Reduced order representations of models that are obtained from different variants of the method are investigated by means of an example.