Based on the electromagnetic scattering theory of dielectric wire and effective medium theory, the formula of the effective dielectric constant of metal wire-dielectric composites is derived.

Electromagnetic resonance of a periodic array wires are studied in free space and negative permittivity are realized in a certain frequency range.

By using the high-k TiTaO dielectric an1d the high work-function ir electrode, we have exhibited a high performance MIM capacitor that meets the ITRS roadmap requirements for analog capacitors.