Qili Huang, Dimin Sun, Guowu Ma, Linlin Hu, Tingting Zhuo. Design of quasi-optical mode converter for dual-frequency gyrotron[J]. High Power Laser and Particle Beams, 2020, 32(5): 053001
- High Power Laser and Particle Beams
- Vol. 32, Issue 5, 053001 (2020)
Fig. 1. Schematic arrangement of the quasi-optical mode converter
Fig. 2. Field distribution on the wall of the launcher for 105 GHz TE18,7 and 140 GHz TE24,9 gyrotron (in dB), the edges of the launcher aperture and cut are indicated
Fig. 3. Profile of the wall surface of the dual-frequency launcher for 105 GHz TE18,7 and 140 GHz TE24,9 gyrotron
Fig. 4. E-field distribution on a cylinder with radius of 5 cm in the same coordinate system as the launcher(in dB)
Fig. 5. Design procedure of the phase correction mirror
Fig. 6. Side view of the E-field of the whole system along the center symmetry xz plane obtained from simulation（in dB）
Fig. 7. Contour plots of the E-field on the window plane. The contours are in 3 dB increments
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Table 1. Propagation parameters of the circular waveguide for considered modes
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Table 2. Results of simulation
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