Abstract: Edge-based finite element method is introduced to study dispersions of six types of rectangle-shaped microshield lines loaded with right-handed materials and left-handed materials. They are rectangle-shaped microshield lines with symmetrical single signal line,with asymmetrical single signal line,with symmetrical dual signal lines,with asymmetrical dual signal lines of position,with asymmetrical dual signal lines of width and with asymmetrical dual signal lines of height. Dispersions of microshield lines with changed dielectric constant of dielectric substrate are discussed. Numerical results are helpful in design of microwave components that use rectangle-shaped microshield lines and left-handed materials.

Key words: dispersion, edge-based finite element method, right-handed material, left-handed material, rectangle-shaped microshield line