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In this paper numerical simulation of inhomogeneities in rectangular and circular waveguides at microwave, using the finite element method in Keysight EMPro 2017 CAD, with experimental data verification are considered. A sphere is used as a typical heterogeneity. Four samples of materials are considered: copper, paraffin, acrylic resin and texolite. A description is given for the modeling the electrophysical parameters of these materials in a computer-aided design system. A comparison of numerical and experimental data for a rectangular waveguide is made. The selected materials are of primary concern for the study and demonstrate various electrophysical parameters.

Verified simulation of waveguide inhomogeneities in Keysight EMPro 2017 software