Demonstration of a Multikilowatt, Solenoidally Focused Sheet Beam Amplifier at 94 GHz

被引：121

作者：

Pasour, John ^{[1
]}

Wright, Edward ^{[2
]}

Nguyen, Khanh T. ^{[2
]}

Balkcum, Adam ^{[3
]}

Wood, Franklin N. ^{[1
]}

Myers, Robert E. ^{[2
]}

Levush, Baruch ^{[1
]}

机构：

[1] Naval Res Lab, Washington, DC 20375 USA

[2] Beam Wave Res, Bethesda, MD 20814 USA

[3] Commun & Power Ind Inc, Palo Alto, CA 94303 USA

来源：

IEEE TRANSACTIONS ON ELECTRON DEVICES | 2014年 / 61卷 / 06期

关键词：

Amplifier; extended interaction klystron (EIK); millimeter wave (MMW); sheet beam; vacuum electronics; ELECTRON-BEAMS; DESIGN; GUN;

D O I：

10.1109/TED.2013.2295771

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：

A technological breakthrough is embodied in the successful demonstration of an extended interaction klystron (EIK) amplifier, which has produced over 7.5 kW of peak output power at W-band (94 GHz). An efficiency of similar to 17% has been achieved with a depressed collector. The EIK is driven by a 20-kV, 4-A sheet beam in a permanent magnet solenoid, with 99% beam current transmission from gun to collector. Key features that contribute to the success of this device are: 1) tight beam focusing and correspondingly narrow beam tunnel, which are made possible by the solenoidal focusing and which provide high interaction impedance and high gain per unit length and 2) the incorporation of design elements to stabilize the inherently over-moded circuit. Measured performance agrees well with 3-D particle-in-cell simulations.

引用

页码：1630 / 1636

页数：7

共 31 条

[1] VELOCITY SHEAR DRIVEN INSTABILITIES OF AN UNNEUTRALIZED ELECTRON-BEAM [J].