A. A. Skvortsov – – Ph.D. (Eng.), Associate Professor, Department of Radioelectronics and Telecommunications, Yuri Gagarin State Technical University of Saratov E-mail: sotrudniki.1@yandex.ru

Quasi-analytical expressions, allowing calculating wave impedance of the coaxial-sector waveguide with homogeneous dielectric filling have been obtained. Results of quasi-analytical calculation of wave impedance of the hollow coaxial-sector waveguide at the infinitely large frequency, which give clear presentation about a character of its variation depending on the definition method and geometrical sizes of considered transmission line have been represented.

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