The behavior of electromagnetic fields in high-T-c superconductors (HT
S's) is studied in order to examine their effects in classical electro
magnetic boundary value problems. It is shown that an HTS can not be s
imply treated as a low loss conductor and boundary conditions of HTS's
can not be considered as perfect conducting boundaries like conventio
nal treatments. The electromagnetics of HTS are investigated in terms
of complex conductivity, surface impedance with applied magnetic field
s, and computational electrodynamics using the new proposed model in [
1].