Journal of Infrared and Millimeter Waves, Volume. 41, Issue 1, 2021223(2022)
Design, fabrication and cold test of a high efficiency folded groove waveguide for w-band sheet beam TWT
Figures & Tables(9)
Fig. 1. The schematic diagram of the FGW with sheet electron beam present.
Fig. 2. (a) A photo showing the upper and lower half of the FGWs with in/out-puts, (b) setup for the cold test of the FGWs.
Fig. 5. Measured and simulated phase velocities for FGWs with period P0 and P1.
Fig. 6. (a) Simulation model of 14 half periods OSPVT based on the PIC, (b) the bunching electron beam in FGW with 14 half periods OSPVT.
Fig. 7. Power transfer curves at 95 GHz for FGWs of different length of OSPVT
Fig. 8. Saturated output power and electron efficiency versus frequency
Table 1. The parameter values of the FGWs
View tableView in ArticleTable 1. The parameter values of the FGWs
Parameters Description Values（mm） a The depth of folded waveguide region 0.82 b The width of folded waveguide region 0.35 s The length of straight aveguide 0.5 h The height of FWG 1.88 P0 half-period FGW without OSPVT 0.6 P1 half-period FGW with OSPVT 0.588
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Yan-Yan TIAN, He-Xin WANG, Xian-Bao SHI, Xin-Yi LI, Yu-Bin GONG, Wen-Long HE. Design, fabrication and cold test of a high efficiency folded groove waveguide for w-band sheet beam TWT[J]. Journal of Infrared and Millimeter Waves, 2022, 41(1): 2021223
Paper Information
Category: Research Articles
Received: Jul. 9, 2021
Accepted: --
Published Online: Apr. 18, 2022
The Author Email: Wen-Long HE (wenlong.he@szu.edu.cn)
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