Yang Lulu, Yang Jun, Deng Guangsheng, et al. High frequency characteristic of THz diffraction and radiation generator with double-row grating[J]. High Power Laser and Particle Beams, 2014, 26: 023101. doi: 10.3788/HPLPB201426.023101
Citation:
Yang Lulu, Yang Jun, Deng Guangsheng, et al. High frequency characteristic of THz diffraction and radiation generator with double-row grating[J]. High Power Laser and Particle Beams, 2014, 26: 023101. doi: 10.3788/HPLPB201426.023101
Yang Lulu, Yang Jun, Deng Guangsheng, et al. High frequency characteristic of THz diffraction and radiation generator with double-row grating[J]. High Power Laser and Particle Beams, 2014, 26: 023101. doi: 10.3788/HPLPB201426.023101
Citation:
Yang Lulu, Yang Jun, Deng Guangsheng, et al. High frequency characteristic of THz diffraction and radiation generator with double-row grating[J]. High Power Laser and Particle Beams, 2014, 26: 023101. doi: 10.3788/HPLPB201426.023101
A calculation method based on rectangular waveguide cavity theory for the open resonance structure with double-row grating and double-groove was proposed. The corrected formula of TE04-mode in the quasi optical cavity structure was proposed for the design optimization, and the electronic efficiency was improved effectively by enhancing the electric field intensity in electron beam tunnel. The cold dispersion character of double-row grating slow-wave structure and the impacts of different parameters on the high frequency characteristic were calculated and analyzed. The results show that the widths of the double-row grating and the electron beam tunnel have great impact on the dispersion character.