COMPUTATION OF EQUIVALENT-CIRCUITS OF CPW DISCONTINUITIES USING QUASI-STATIC SPECTRAL-DOMAIN METHOD

An efficient and simple computer technique based on the quasistatic ap proximation for the determination of the component values of the equiv alent circuits of a broad-class of coplanar waveguide (CPW) discontinu ities is introduced. The technique does not depend on the extraction o f the component values from the scattering parameters. It uses the spe ctral domain formulation in conjunction with the method of moments. Th e concepts behind the method are illustrated using a complex example, the CPW T-junction. A few T-junctions are treated with the technique. Both the measurements and the full-wave electromagnetic simulation sup port the accuracy of the results.