Radio Physics and Radio Astronomy 
Vol. 8, 2003, No.4, December, p.437 
Electric Field Lines in a Rectangular Waveguide with Inhomogeneous Anisotropic Insertion

O.V. Bagatskaya, V.I. Fesenko^{1} and S.N. Shulga

V. N. Karazin Kharkov National University, 4, Svobodу Sq., Kharkov, 61077, Ukraine, ^{1}Харьковский национальный университет радиоэлектроники, Украина, г. Харьков, 61166, пр. Ленина,14 Email: fesenko@kture.kharkov.ua

The distribution of electromagnetic field lines in the crosssection of a rectangular waveguide possessing an inhomogeneous insertion which is characterized by an anisotropy of both electrical and magnetic properties simultaneously is considered. The Maxwell equations for an arbitrary anisotropic medium in the presence of the waveguide or resonator bounding walls has been digitized by the finitedifference method. The system of linear algebraic equations for electric field components in an inhomogeneous anisotropic medium has been obtained and the system solution found by the conjugate gradient method. The calculation of electric field lines in the crosssection of an anisotropic insertion of a rectangular waveguide is presented. 
