Large-Signal 2-D Modeling of Folded-Waveguide Traveling Wave Tubes

2016 ◽  
Vol 63 (6) ◽  
pp. 2531-2537 ◽  
Author(s):  
Igor A. Chernyavskiy ◽  
Thomas M. Antonsen ◽  
Alexander N. Vlasov ◽  
David Chernin ◽  
Khanh T. Nguyen ◽  
...  
Keyword(s):  
Traveling Wave ◽  
Large Signal ◽  
Folded Waveguide ◽  
Traveling Wave Tubes

1-D Large Signal Model of Folded-Waveguide Traveling Wave Tubes

2014 ◽  
Vol 61 (6) ◽  
pp. 1699-1706 ◽  
Author(s):  
David Chernin ◽  
Thomas M. Antonsen ◽  
Alexander N. Vlasov ◽  
Igor A. Chernyavskiy ◽  
Khanh T. Nguyen ◽  
...  
Keyword(s):  
Traveling Wave ◽  
Large Signal ◽  
Signal Model ◽  
Folded Waveguide ◽  
Traveling Wave Tubes

Large-Signal 2.5-D Steady-State Beam-Wave Interaction Simulation of Folded-Waveguide Traveling-Wave Tubes

2016 ◽  
Vol 63 (12) ◽  
pp. 4961-4967 ◽  
Author(s):  
Sascha Meyne ◽  
Pierre Bernadi ◽  
Philip Birtel ◽  
Jean-Francois David ◽  
Arne F. Jacob
Keyword(s):  
Steady State ◽  
Traveling Wave ◽  
Wave Interaction ◽  
Large Signal ◽  
Beam Wave ◽  
Folded Waveguide ◽  
Interaction Simulation ◽  
Traveling Wave Tubes ◽  
Beam Wave Interaction

Investigation of W-band Diverse-shaped Groove-loaded Folded Waveguide Traveling-wave Tubes

2013 ◽  
Vol 34 (7) ◽  
pp. 1760-1766 ◽  
Author(s):  
Bo Peng ◽  
Jun He ◽  
Ming-guang Huang ◽  
Bao-liang Hao ◽  
Pu-kun Liu
Keyword(s):  
Traveling Wave ◽  
Folded Waveguide ◽  
W Band ◽  
Traveling Wave Tubes

Design of transition waveguide for millimeter wave folded waveguide traveling wave tubes

2010 ◽  
Vol 22 (5) ◽  
pp. 1103-1106 ◽  
Author(s):  
唐涛 Tang Tao ◽  
巩华荣 Gong Huarong ◽  
宫玉彬 Gong Yubin ◽  
王文祥 Wang Wenxiang
Keyword(s):  
Millimeter Wave ◽  
Traveling Wave ◽  
Folded Waveguide ◽  
Traveling Wave Tubes

Large-Signal Investigation of Cold and Hot Matched Coupled-Cavity Traveling-Wave Tubes

Frequenz ◽  
2014 ◽  
Vol 0 (0) ◽  
Author(s):  
Sascha Meyne ◽  
Jean-François David ◽  
Arne F. Jacob
Keyword(s):  
Traveling Wave ◽  
Characteristic Impedance ◽  
Matching Condition ◽  
Wave System ◽  
Small Signal ◽  
Large Signal ◽  
Beam Wave ◽  
Signal Approach ◽  
Traveling Wave Tubes ◽  
Coupled Cavity

AbstractThe implications of different matching conditions for coupled-cavity traveling-wave tubes are considered. Using a small-signal approach the characteristic impedance for the coupled (hot) beam-wave system is derived. It is taken as reference impedance to model ideal transformers and severs. This matching condition is compared to the standard cold match and both cases are analyzed using a large-signal interaction tool. The implications on input reflection and output gain are discussed.

scholarly journals Investigation of a Miniaturized E-Band Cosine-Vane Folded Waveguide Traveling-Wave Tube for Wireless Communication

Electronics ◽  
2021 ◽  
Vol 10 (24) ◽  
pp. 3054
Author(s):  
Kexin Ma ◽  
Jun Cai ◽  
Jinjun Feng
Keyword(s):  
Wireless Communication ◽  
Traveling Wave ◽  
Optimization Design ◽  
Low Voltage ◽  
Wave Structure ◽  
High Rate ◽  
Size Analysis ◽  
Original Design ◽  
Folded Waveguide ◽  
Traveling Wave Tubes

To realize the miniaturization of E-band traveling-wave tubes (TWTs), the size analysis and optimization design were carried out based on an improved cosine-vane folded waveguide (CV-FWG) slow-wave structure (SWS) that operates in a low voltage. In addition, a novel miniaturized T-shaped coupler was proposed to achieve a good voltage standing wave rate (VSWR) in a broad bandwidth. The coupler length was reduced by as much as 77% relative to an original design. With higher coupling impedance, the radius and length of the shortened SWS were optimized as 1.3 mm and 50 mm, respectively. Using microwave tube simulator suit (MTSS) and CST particle studio (PS), 3D beam–wave simulations at 9400 V, 20 mA predicted a gain of 20 dB and a saturated output power of 9 W. The simulation results for CV-FWG TWTs were compared with conventional FWG TWTs from 81 GHz to 86 GHz, showing significant performance advantages with excellent flatness for high-rate wireless communication in the future. The CV-FWG SWS circuit will be fabricated by 3D printing, and this work is underway.

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