Search for: [Subject and Keywords = gyrotron] OR [Subject and Keywords = measurement for quasi\-optical systems] OR [Subject and Keywords = high order modes] OR [Title = Review of Experimental Verification Methods of Gyrotron Quasi\-optical Mode Converters, Journal of Telecommunications and Information Technology, 2020, nr 3] OR [Creator = Nowak, Kacper] OR [Creator = Nowak, Maciej] OR [Creator = Francik, Andrzej] OR [Creator = Jaworski, Grzegorz]