فهرس المقالات Mona Mehranfar المقاله 1 - Investigation of the Poynting flux ratio in the helix traveling wave tube 10.30495/jtap.162203 Shahrooz Saviz Mona Mehranfar Davoud Dorranian Journal of Theoretical and Applied Physics , العدد 1 , السنة 16 , زمستان 2022
