  SRR metamaterial is used as a substrate material in a microstrip guided wave
structure to determine what the effect is of a material with potentially
excessive dispersion or loss or both. A Green's function method readily
incorporates the metamaterial permittivity and permeability tensor
characteristics. Ab initio calculations are performed to obtain the dispersion
diagrams of several complex peopagation constant modes of the structure.
Analytical analysis is done for the design and interpretation of the results,
which demonstrate remarkable potential for realistic use in high frequency
electronics.
