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

页码：654 / 669

页数：16

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