Development of G-Band Continuous-Wave Folded Waveguide Traveling-Wave Tube

Article Engineering, Electrical & Electronic

Demonstration of a Pulsed G-Band 50-W Traveling Wave Tube

Xingwang Bian et al.

Summary: This research presents the progress of a pulsed G-band 50 W traveling wave tube with pencil beam focused by periodic permanent magnet. By setting the operating point near the cutoff frequency, using folded waveguide slow wave structure with modified circular bends, and adopting phase velocity tapering technique, the tube's operation performances have been significantly improved, achieving high power, high electronic efficiency, and significant bandwidth.

IEEE ELECTRON DEVICE LETTERS (2021)

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Article Engineering, Electrical & Electronic

Demonstration of a 220-GHz Continuous Wave Traveling Wave Tube

Yi Jiang et al.

Summary: This article presents a 220-GHz continuous wave folded waveguide traveling wave tube as a high-power amplifier for a terahertz communication system. Test results demonstrate its good performance with an output power of 16W and a maximum power of 30W at 217 GHz.

IEEE TRANSACTIONS ON ELECTRON DEVICES (2021)

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Article Engineering, Electrical & Electronic

Design and Optimization of Axis-Adjustable Multistage Depressed Collector for 0.22-THz Traveling Wave Tubes

Yue Ou et al.

Summary: This article presents an axis-adjustable MDC optimized using the genetic algorithm, achieving a balance between the collector recovery efficiency and electron reflux rate. Through the proposed method, a three-stage symmetric collector designed with GA optimization for a 0.22-THz TWT was fabricated, showing promising results for the design of high efficiency TWTs.

IEEE TRANSACTIONS ON ELECTRON DEVICES (2021)

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Article Engineering, Electrical & Electronic