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Reduced-order optimized mode-matching CAD of microwave waveguide components

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6 Author(s)
Peverini, O.A. ; Italian Nat. Res. Council, Politecnico di Torino, Turin, Italy ; Tascone, R. ; Baralis, M. ; Virone, G.
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The optimum designs of microwave devices require highly accurate and efficient computer-aided-design systems. This paper describes a novel reduced-order model for the mode-matching technique, which is derived from the application of the Krylov subspace concept and of the singular-value-decomposition algorithm to the coupled integral equations solved by the mode-matching technique. The design example of a high performance 12-cavity Ka-band ridged-filter confirms the accuracy and the numerical efficiency of the proposed model. In particular, the presented method also enables to accurately control the metal losses of the devices.

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Microwave Theory and Techniques, IEEE Transactions on  (Volume:52 ,  Issue: 1 )