Current distribution for a thin superconducting strip shielded by two ideally conducting plains has been calculated. It is shown that at microwave requencies the current density has maximum over the center of the strip in contrast to the dc current pattern, which exhibits crowding over the edges.
@article{arxiv.cond-mat/0111484,
title = {Current Distribution for Superconducting Strip Transmission Lines at Microwave Frequencies},
author = {V. M. Genkin},
journal= {arXiv preprint arXiv:cond-mat/0111484},
year = {2007}
}