TY CONF TI TO THE DEFINITION OF BREAKDOWN POWER TRANSMITTED THROUGH COAXIAL-SECTOR WAVEGUIDE KW breakdown power KW dominant wave KW coaxial-sector waveguide KW rectangular waveguide KW quasi-analytical technique JO CAD/EDA/SIMULATION IN MODERN ELECTRONICS 2019 AU Skvorcov, A.A. PY 2021 PB Bryansk State Technical University