EFFICIENTLY CONVERGENT NOVEL BASIS FUNCTIONS FOR THE ANALYSIS OF MICROSTRIP DISCONTINUITIES BY THE SPECTRAL-DOMAIN GALERKIN METHOD

In this paper, novel efficient basis functions are presented for the r igorous analysis by the spectral domain Galerkin in method of geometri cally complex Microstrip discontinuities. The numerical performances o f these basis functions are very attractive, namely, very rapid conver gence and high stability Moreover a comparative study of the convergen ce features of the proposed basis functions with two others widely use d in literature, namely, the rooftops and the rectangular pulses, is p resented. To illustrate this study, numerical results are presented fo r a shielded Microstrip bend discontinuity.