DOUBLE CONDUCTOR LINE ABOVE A 2-LAYERED CYLINDER WITH VARYING PROPERTIES

The change of impedance per unit length in a single or double conducto r line situated parallel to an infinitely long two-layered metallic ci rcular cylinder is found (within the quasistatic approximation) in the form of an infinite series. The cylinder consists of an inner core an d an outer annulus. The properties of the inner core are assumed to be constant. The relative magnetic permeability, mu(r) = r(alpha), and t he conductivity, sigma(r) = sigma((0))r(kappa), of the outer annulus v ary with respect to the radial coordinate, r, and alpha and kappa are arbitrary real numbers. Numerical results are presented in the form of figures and tables.