Articolo in rivista, 2010, ENG, 10.1163/156939310791036421

Automatic design of circular siw resonators by a hybrid approach based on polynomial fitting and SVRMS

De Carlo, D.; Tringàli, S.

Universita degli Studi di Reggio Calabria

We obtain analytical formulas enabling automatic design procedures of circular Substrate Integrated Waveguide (SIW) resonators, assuming a prescribed resonance frequency fres. On the one hand, such formulas allow us to write flexible codes. On the other hand, they yield sharp estimates of the SIW geometrical parameters, which are subsequently passed as inputs to a Support Vector Regression Machine (SVRM), especially trained to make compensation. In particular, the SVRM uses such estimates to compute a further frequency f' res, possibly different from fres, and the overall process is restarted over and over through a feedback loop, until the relative error |fres - f'res|/fres is reduced under a given threshold. To validate the proposed approach, we finally compare the design outputs provided by its implementation in the Matlab environment with the results of HFSS simulations. © 2010 VSP.

Journal of electromagnetic waves and applications (Print) 24 (5-6), pp. 735–744

Keywords

Substrate integrated waveguides, Design, MATLAB, Microwave circuits, Resonance, Resonators, Analytical formulas, Automatic design, Feed-back loop, Geometrical parameters, HFSS simulation, Hybrid approach, MATLAB environment, Polynomial fittings, Relative errors, Resonance frequencies, Sharp estimates, Support vector regression machines

CNR authors

De Carlo Domenico

CNR institutes