Gigawatt-class radiation generated by a Ka-band overmoded Cherenkov-type high power millimeter wave generator.
Particle simulation and experimental results are presented about a Ka-band overmoded Cherenkov-type high power millimeter wave generator in this paper. The relativistic electron beam with peak current of 8.4 kA was generated by a pulsed power accelerator working at the voltage of 625 kV, which was guided by an axial magnetic field of 1.05 T and transported through the beam-wave interaction structures. After careful calibration, the microwave power radiated in the far field was as high as about 500 MW, with a frequency of 32.1 GHz and a pulse width of 20 ns. The radiation mode was well controlled to be TM(0n) mode.
College of Optoelectric Science and Engineering, National University of Defense Technology, Changsha 410073, China.
Dapeng
D
Wu
College of Optoelectric Science and Engineering, National University of Defense Technology, Changsha 410073, China.
Ting
T
Shu
College of Optoelectric Science and Engineering, National University of Defense Technology, Changsha 410073, China.
Jinchuan
J
Ju
College of Optoelectric Science and Engineering, National University of Defense Technology, Changsha 410073, China.
Shengren
S
Peng