Work

An Automatic Optimization Approach to the Non-Periodic Folded-Waveguide Slow-Wave Structure for the High Efficiency Traveling Wave Tube

Year: 2025

Type: article

Abstract: An automatic optimization approach to the non-periodic (NP) folded-waveguide slow-wave structure (FW-SWS) is proposed for the high efficiency traveling wave tube (TWT). Considering the beam-wave synchronism condition, the data of the beam velocity distribution are analyzed and utilized for automatic optimization. For concise expression, a W-band concentric arc NP FW-SWS TWT is automatically optimized as an example, where the beam voltage is set as 6000 V, the beam current is 0.12 A, the magnet field is 0.5 T, and the input power is 0.4 W. Without any training data or previous given datasets, the output power (electronic efficiency) can be optimized to reach 238.7 W (33.1%) at 94 GHz by the automatic optimization approach code within 22.7 h.

Source: Electronics

DOI: 10.3390/electronics14244797

Authors: Zheng Wen, Jun Zhang

Institution: National University of Defense Technology

Language: English

Topic: Gyrotron and Vacuum Electronics Research

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

SDG: Industry, innovation and infrastructure

Open Access status: gold

Estimated APC paid: $2,896