Wavelets for the Analysis of Microstrip Lines

Wavelets as basis functions in moment methods are known to lead to extremely sparse generalized impedance matrices. Thus, they are believed to be advantageous for the analysis of large microwave structures. In this paper different implementations and orders of spline based wavelets are compared. They are applied to a microstrip line, which exhibits singularities in the current distribution at the edges of the strip. We will show how infinitelysupported wavelets can be used for problems on such boundedintervals and how one can benefitfrom translation symmetriesof the underlyingB-splines.