Double-Layer Slit Cavities for Wideband Frequency Tuning in Terahertz Gyrotrons

被引：2
|
作者：
Rozental, R. M. [1 ,2 ]
Danilov, Yu Yu [1 ]
Leontyev, A. N. [1 ]
Malkin, A. M. [1 ,3 ]
Shchegolkov, D. Yu [1 ]
Tarakanov, V. P. [4 ,5 ]
机构：
[1] Inst Appl Phys RAS, Niznhy Novgorod, Russia
[2] Nizhnii Novgorod State Univ, Lab Intens Millimeter Wave Sources, Nizhnii Novgorod, Russia
[3] Nizhnii Novgorod State Univ, Adv Sch Gen & Appl Phys, Nizhnii Novgorod, Russia
[4] Moscow Engn Phys Inst, Moscow, Russia
[5] Joint Inst High Temp RAS, Moscow, Russia
来源：
JOURNAL OF INFRARED MILLIMETER AND TERAHERTZ WAVES | 2022年 / 43卷 / 7-8期
关键词：
Gyrotron; Smooth frequency tuning; Slit-type cavities; Terahertz radiation; MODE; EFFICIENCY; DESIGN; SYSTEM; GHZ;
D O I：
10.1007/s10762-022-00876-0
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：
We propose a new type of a gyrotron cavity comprising the external and internal cylindrical resonators with azimuthally periodical axial slits. A theory of such a cavity is presented together with the eigenmode computation, which confirms its high mode selectivity. In 3D simulations using the particle-in-cells method, we compare the output characteristics of 0.5 THz gyrotrons with 0.1 to 1 kW output power. We demonstrate that as compared to a conventional solid wall cavity, the use of the novel-type cavity allows the smooth frequency tuning band to be increased by an order of magnitude and more.
引用
收藏
页码：654 / 669
页数：16
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