Demonstration of a Wideband 10-kW Ka-Band Sheet Beam TWT Amplifier

被引：0

作者：

Pershing, Dean ^{[1
]}

Khanh Nguyen ^{[1
]}

Abe, David K. ^{[2
]}

Wright, Edward ^{[1
]}

Larsen, Paul ^{[3
]}

Pasour, John ^{[2
]}

Cooke, Simon ^{[2
]}

Balkcum, Adam ^{[4
]}

Wood, Frank ^{[2
]}

Myers, Robert ^{[1
]}

Levush, Baruch ^{[2
]}

机构：

[1] Beam Wave Res Inc, Bethesda, MD 20814 USA

[2] US Naval Res Lab, Vacuum Elect Branch, Washington, DC 20375 USA

[3] ANSYS Inc, Evanston, IL 60201 USA

[4] CPI Inc, Palo Alto, CA 94304 USA

来源：

IEEE INTERNATIONAL VACUUM ELECTRONICS CONFERENCE | 2014年

关键词：

Amplifier; coupled-cavity; millimeter wave; sheet beam; TWT; vacuum electronics;

D O I：

暂无

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 sheet-beam coupled-cavity traveling wave tube has produced over 10 kW of peak power at a center frequency of 34 GHz, with a 3-dB bandwidth of almost 5 GHz. The power of this amplifier is an order of magnitude higher than state-of-the-art conventional amplifiers of comparable frequency, bandwidth, and operating voltage (<20 kV). This unprecedented performance is made possible by a unique, NRL-developed sheet electron beam along with a novel slow-wave interaction structure. High-current, low-voltage operation provides high gain per unit length and allows an interaction structure < 5-cm long to be used to achieve the desired gain of 15 dB at saturation. Measured performance agrees well with 3-D particle-in-cell simulations.

引用

页码：121 / +

页数：2

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