A low-impedance transit-time oscillator without foils

被引：54

作者：

Cao, Yibing ^{[1
]}

Zhang, Jiande ^{[1
]}

He, Juntao ^{[1
]}

机构：

[1] Natl Univ Def Technol, Coll Photoelect Sci & Engn, Changsha 410073, Hunan, Peoples R China

来源：

PHYSICS OF PLASMAS | 2009年 / 16卷 / 08期

关键词：

SPLIT-CAVITY OSCILLATOR; HIGH-POWER; BAND;

D O I：

10.1063/1.3195070

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

A low-impedance transit-time oscillator (LITTO) without foils is proposed and studied by simulation. By using a coaxial structure, the space-charge limiting current can be improved significantly, thus allowing higher input and output powers. With no foils to erode, the only factor limiting the repetition rate is the ability to maintain an. adequate vacuum. By contrast with conventional transit-time oscillators, the proposed LITTO has the advantages of low diode impedance, rapid saturation time, and a possibility of repetitive operation. As indicated in PIC simulation, the average microwave output power is over 5.0 GW at the main frequency of 1.6 GHz, with an input electron beam of 36.0 kA current and 600 kV voltage, and an external magnetic field of 0.45 Tesla. (C) 2009 American Institute of Physics. [DOI: 10.1063/1.3195070]

引用

页数：6

共 18 条

[1] Evolution of pulse shortening research in narrow band, high power microwave sources [J].

Agee, FJ .

IEEE TRANSACTIONS ON PLASMA SCIENCE, 1998, 26 (03) :235-245

[2]

[Anonymous], [No title captured]

[3] Radial acceletron, a new low-impedance HPM source [J].

Arman, MJ .

IEEE TRANSACTIONS ON PLASMA SCIENCE, 1996, 24 (03) :964-969

[4] Survey of pulse shortening in high-power microwave sources [J].

Benford, J ;

Benford, G .

IEEE TRANSACTIONS ON PLASMA SCIENCE, 1997, 25 (02) :311-317

[5] Radio-frequency plasma cleaning for mitigation of high-power microwave-pulse shortening in a coaxial gyrotron [J].

Cohen, WE ;

Gilgenbach, RM ;

Jaynes, RL ;

Peters, CW ;

Lopez, MR ;

Lau, YY ;

Anderson, SA ;

Brake, ML ;

Spencer, TA .

APPLIED PHYSICS LETTERS, 2000, 77 (23) :3725-3727

[6] Theoretical and experimental researches on C-band three-cavity transit-time effect oscillator [J].

Fan, ZK ;

Liu, QX ;

Chen, DB ;

Tan, J ;

Zhou, HJ .

SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY, 2004, 47 (03) :310-329

[7] EFFICIENT GENERATION OF MULTIGIGAWATT RF POWER BY A KLYSTRONLIKE AMPLIFIER [J].

FRIEDMAN, M ;

KRALL, J ;

LAU, YY ;

SERLIN, V .

REVIEW OF SCIENTIFIC INSTRUMENTS, 1990, 61 (01) :171-181

[8] PRODUCTION AND FOCUSING OF A HIGH POWER RELATIVISTIC ANNULAR ELECTRON BEAM [J].

FRIEDMAN, M ;

URY, M .

REVIEW OF SCIENTIFIC INSTRUMENTS, 1970, 41 (09) :1334-&

[9] RELATIVISTIC KLYSTRON AMPLIFIERS DRIVEN BY MODULATED INTENSE RELATIVISTIC ELECTRON-BEAMS [J].

LAU, YY ;

FRIEDMAN, M ;

KRALL, J ;

SERLIN, V .

IEEE TRANSACTIONS ON PLASMA SCIENCE, 1990, 18 (03) :553-569

[10] THEORETICAL AND EXPERIMENTAL INVESTIGATION OF A METHOD FOR INCREASING THE OUTPUT POWER OF A MICROWAVE TUBE BASED ON THE SPLIT-CAVITY OSCILLATOR [J].

LEMKE, RW ;

CLARK, MC ;

MARDER, BM .

JOURNAL OF APPLIED PHYSICS, 1994, 75 (10) :5423-5432

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