Assessing Surface Roughness Effect in Gyrotrons With the Gradient Conductivity Model

被引：0
|
作者：
Huang, Yu [1 ]
Xiao, Houxiu [1 ]
Chen, Xianfei [1 ]
Wang, Zhenglei [1 ]
Qiu, Zhiyu [1 ]
机构：
[1] Huazhong Univ Sci & Technol, Wuhan Natl High Magnet Field Ctr, Wuhan 430074, Peoples R China
来源：
IEEE TRANSACTIONS ON ELECTRON DEVICES | 2023年 / 70卷 / 06期
基金：
中国国家自然科学基金;
关键词：
Surface roughness; Rough surfaces; Conductivity; Gyrotrons; Surface treatment; Analytical models; Skin; Gradient conductivity (GC) model; gyrotron; ohmic loss; surface roughness; CONVENTIONAL CAVITY GYROTRON; DESIGN; PROPAGATION;
D O I：
10.1109/TED.2022.3206263
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
To accurately characterize the effect of the cavity surface roughness on the ohmic loss in gyrotron oscillators, this article proposes a method by using the gradient conductivity (GC) assessment model, in which a derived effective conductivity parameter is used to characterize the surface roughness. The results show that it has higher accuracy than the conventional methods such as the H-B formula, especially in the terahertz frequency band. This model also provides a reasonable explanation for the low-efficiency problem in terahertz gyrotrons, and it is beneficial to promote the design and analysis of gyrotrons.
引用
收藏
页码：2702 / 2706
页数：5
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