[IEEE 2006 IEEE International Vacuum Electronics Conference held Jointly with 2006 IEEE International Vacuum Electron Sources - Monterey, CA, USA (25-27 April 2006)] 2006 IEEE International Vacuum Electronics Conference held Jointly with 2006 IEEE International Vacuum Electron Sources - Research Progress on C-band Broadband Multi-Beam KlystronYaogen Ding, ; Yunshu Zhu, ; Xiulin Yin, ; Xiaoxin Sun, ; Bin Shen, ; Yizhen Miao, ; Caiying Wang, · 2006