An efficient technique is presented, based on the application of a multi-resolution (MR) approach to the BMIA/AIM formulation. The BMIA/AIM is an extension of the banded matrix iterative approach (BMIA) to a non-canonical grid by using the adaptive integral method (AIM) and allows an efficient analysis of patch antennas having medium/large or large dimensions. The multi-resolution (MR) approach keeps the different scales of the problem directly into the basis functions representation. The basis is constructed via the "dual-isoscalar" technique, which possesses both spectral and spatial resolution, and allows us to considerably improve the MoM matrix condition number and iteration convergence.
A BMIA/AIM multi-resolution approach for the analysis of large printed array / DE-VITA P.; MORI A.; A. FRENI; VIPIANA F.; PIRINOLI P.; VECCHI G.. - STAMPA. - 4:(2003), pp. 803-806. (Intervento presentato al convegno IEEE Antennas and Propagation Society International Symposium, 2003 tenutosi a Columbus, Ohio nel 22-27 June 2003) [10.1109/APS.2003.1220394].