Frequency tunable gyrotron using backward-wave components

被引：120

作者：

Chang, T. H. ^{[1
,2
]}

Idehara, T. ^{[2
]}

Ogawa, I. ^{[2
]}

Agusu, L. ^{[2
]}

Kobayashi, S. ^{[2
]}

机构：

[1] Natl Tsing Hua Univ, Dept Phys, Hsinchu 300, Taiwan

[2] Univ Fukui FIR FU, Res Ctr Dev Far Infrared Reg, Fukui 9108507, Japan

来源：

JOURNAL OF APPLIED PHYSICS | 2009年 / 105卷 / 06期

关键词：

backward wave oscillators; gyrotrons; millimetre wave oscillators; submillimetre wave oscillators; POWER; GHZ;

D O I：

10.1063/1.3097334

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report a frequency tunable scheme for the gyrotron at millimeter/submillimeter regime. Unlike the step-tunable type where oscillation frequencies change discretely, this scheme continuously adjusts the oscillation frequency as the magnetic field varies. It is a hybrid system, taking the advantages of the backward-wave interaction and the converter-free output structure. The characteristics of backward-wave interaction will be shown. A proof of principle experiment was conducted with a scaled cavity. The result shows the oscillation frequency smoothly transitions over a wide range of 6 GHz from 134 to 140 GHz. With proper design this mechanism is capable of producing medium output power with broad frequency tunability up to the terahertz region.

引用

页数：4

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