A 0.33-THz second-harmonic frequency-tunable gyrotron

被引：0

作者：

李铮迪 ^{[1
,2
]}

杜朝海 ^{[3
]}

戚向波 ^{[3
]}

罗里 ^{[1
,2
]}

刘濮鲲 ^{[3
]}

机构：

[1] Institute of Electronics, Chinese Academy of Sciences

[2] University of Chinese Academy of Sciences

[3] School of Electronics Engineering and Computer Science, Peking University

来源：

Chinese Physics B | 2016年 / 25卷 / 02期

关键词：

gyrotron; mode transition; second harmonic; frequency tuning; terahertz;

D O I：

暂无

中图分类号：

TN12 [微波电子管];

学科分类号：

080901 ;

摘要：

Dynamics of the axial mode transition process in a 0.33-THz second-harmonic gyrotron is investigated to reveal the physical mechanism of realizing broadband frequency tuning in an open cavity circuit. A new interaction mechanism about propagating waves, featured by wave competition and wave cooperation, is presented and provides a new insight into the beam-wave interaction. The two different features revealed in the two different operation regions of low-order axial modes（LOAMs） and high-order axial modes（HOAMs） respectively determine the characteristic of the overall performance of the device essentially. The device performance is obtained by the simulation based on the time-domain nonlinear theory and shows that using a 12-kV/150-mA electron beam and TE-3,4 mode, the second harmonic gyrotron can generate terahertz radiations with frequency-tuning ranges of about 0.85 GHz and 0.60 GHz via magnetic field and beam voltage tuning,respectively. Additionally, some non-stationary phenomena in the mode startup process are also analyzed. The investigation in this paper presents guidance for future developing high-performance frequency-tunable gyrotrons toward terahertz applications.

引用

页码：589 / 595

页数：7

共 9 条

[1] 8mm波段三次谐波复合腔回旋管的非线性分析 [J].

喻胜 ;

李宏福 ;

谢仲怜 ;

罗勇 .

物理学报, 2001, (10) :1979-1983

[2] Continuously Tunable 250 GHz Gyrotron with a Double Disk Window for DNP-NMR Spectroscopy [J].

Jawla, Sudheer ;

Ni, Qing Zhe ;

Barnes, Alexander ;

Guss, William ;

Daviso, Eugenio ;

Herzfeld, Judith ;

Griffin, Robert ;

Temkin, Richard .

JOURNAL OF INFRARED MILLIMETER AND TERAHERTZ WAVES, 2013, 34 (01) :42-52

[3] Continuously Frequency Tunable High Power Sub-THz Radiation Source-Gyrotron FU CW VI for 600 MHz DNP-NMR Spectroscopy [J].

Idehara, Toshitaka ;

Kosuga, Kosuke ;

Agusu, La ;

Ikeda, Ryosuke ;

Ogawa, Isamu ;

Saito, Teruo ;

Matsuki, Yoh ;

Ueda, Keisuke ;

Fujiwara, Toshimichi .

JOURNAL OF INFRARED MILLIMETER AND TERAHERTZ WAVES, 2010, 31 (07) :775-790

[4]

Development of Terahertz FU CW Gyrotron Series for DNP[J] . T. Idehara,T. Saito,I. Ogawa,S. Mitsudo,Y. Tatematsu,La Agusu,H. Mori,S. Kobayashi. Applied Magnetic Resonance . 2008 (3-4)

[5] The potential of the gyrotrons for development of the sub-terahertz and the terahertz frequency range - A review of novel and prospective applications [J].

Idehara, T. ;

Saito, T. ;

Ogawa, I. ;

Mitsudo, S. ;

Tatematsu, Y. ;

Sabchevski, S. .

THIN SOLID FILMS, 2008, 517 (04) :1503-1506

[6]

Design of a 24 GHz, 25-50 kW Technology Gyrotron Operating at the Second Harmonic[J] . P.-K. Liu,E. Borie,M. V. Kartikeyan. International Journal of Infrared and Millimeter Waves . 2000 (12)

[7] Mode competition and self-consistent simulation of a second harmonic gyrotron oscillator [J].

Liu, PK ;

Borie, E .

INTERNATIONAL JOURNAL OF INFRARED AND MILLIMETER WAVES, 2000, 21 (06) :855-882

[8]

Analytic theory of a tapered gyrotron resonator[J] . R. J. Temkin. International Journal of Infrared and Millimeter Waves . 1981 (4)

[9]

Linear theory of an electron cyclotron maser operating at the fundamental[J] . K. E. Kreischer,R. J. Temkin. International Journal of Infrared and Millimeter Waves . 1980 (2)

← 1 →