Dielectric loss computation of multilayer Coplanar Waveguide

The combined Quasi Static Spectral Domain Approach (SDA) method and Single Layer Reduction (SLR) technique is presented to compute dielectric loss of multilayer Coplanar Waveguide (CPW). The Green´s function for the multilayer structure is derived from Transverse Transmission Line (TTL) method. Quasi static SDA method is used to compute effective relative permittivity of the multilayer CPW. The Single Layer Reduction (SLR) technique converts multilayer CPW structure to an equivalent single layer CPW structure. The dielectric loss is computed for the equivalent CPW structure.