SURFACE IMPEDANCE OF CONDUCTING CYLINDERS

Asymptotic developments for electromagnetic field problems involving i mperfectly conducting cylinders are presented. It is shown that a judi ciously chosen partial integration scheme, based on a theorem of Darbo ux, leads to an asymptotic series which takes into account both local curvature and global diameter of the cylinder. As a byproduct of the a symptotic series, new formulas are obtained for the surface impedance of cylinders with boundaries with continuous curvature and cylinders w ith polygonal boundaries.