Huang Xiaoling, Yang Jun, Deng Guangsheng, et al. 220 GHz three-stage staggered double vane slow-wave structure[J]. High Power Laser and Particle Beams, 2015, 27: 073101. doi: 10.11884/HPLPB201527.073101
Citation:
Huang Xiaoling, Yang Jun, Deng Guangsheng, et al. 220 GHz three-stage staggered double vane slow-wave structure[J]. High Power Laser and Particle Beams, 2015, 27: 073101. doi: 10.11884/HPLPB201527.073101
Huang Xiaoling, Yang Jun, Deng Guangsheng, et al. 220 GHz three-stage staggered double vane slow-wave structure[J]. High Power Laser and Particle Beams, 2015, 27: 073101. doi: 10.11884/HPLPB201527.073101
Citation:
Huang Xiaoling, Yang Jun, Deng Guangsheng, et al. 220 GHz three-stage staggered double vane slow-wave structure[J]. High Power Laser and Particle Beams, 2015, 27: 073101. doi: 10.11884/HPLPB201527.073101
A three-stage 220 GHz staggered double vane TWT was proposed in this paper. The coupler structure, as a key part affecting the whole transmission characteristics, was analyzed. By numerical simulation, a novel coupler formed by height gradually changed grating structure and concentric cylindrical connector was proposed for this structure. The particle-in-cell simulation results revealed that the self-excited oscillation was effectively suppressed, and the maximum gain was 30 dB at 220 GHz with a 3 dB bandwidth of 23 GHz. The transmission deficiency caused by the multi electron beam channel was successfully resolved by this novel structure.
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