Microstrip lines are analyzed by considering edge-singular behavior using c
losed-form Green's functions in a spatial domain, A Maxwell function which
incorporates the appropriate edge conditions of the line is introduced for
the derivations of a transverse correlation function. From calculations of
excess lengths of an open-end discontinuity, the results of the proposed me
thod using the edge conditions are in better agreement with the quasistatic
results than those of transverse uniform current variations for conductor
strips with relatively wider width.