Multiconductor Transmission Lines in Inhomogeneous Bi-Anisotropic Media

An analysis method for multiconductor transmission lines embedded in inhomogeneous bi-anisotropic media is presented. The Maxwell-Boffi equations, accompanied by the Maxwell-Minkowski ones, are expressed as Taylor series of the operating frequency where the zeroth- and first-order terms are retained. The reduced problem is solved using the potential formulation through the static 2-D free-space Green´s function. The method of moments is employed to numerically solve the set of quasi-TEM integral equations, to produce the Telegrapher´s equations, and to derive the circuit parameters in matrix form. The procedure is augmented by providing in closed form the field-coupling integrals.