Demonstration of a W-Band Traveling-Wave Tube Power Amplifier With 10-GHz Bandwidth

被引：22

作者：

Cook, Alan M. ^{[1
]}

Wright, Edward L. ^{[2
]}

Nguyen, Khanh T. ^{[2
]}

Joye, Colin D. ^{[1
]}

Rodgers, John C. ^{[1
]}

Jaynes, Reginald L. ^{[1
]}

Chernyavskiy, Igor A. ^{[1
]}

Wood, Frank N. ^{[1
]}

Albright, Benjamin S., Jr. ^{[1
]}

Abe, David K. ^{[3
]}

Calame, Jeffrey P. ^{[1
]}

Levush, Baruch ^{[1
]}

Pershing, Dean E. ^{[2
]}

Atkinson, John ^{[4
]}

Kimura, Takuji ^{[4
]}

机构：

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

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

[3] DARPA, Arlington, VA 22203 USA

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

来源：

IEEE TRANSACTIONS ON ELECTRON DEVICES | 2021年 / 68卷 / 05期

关键词：

Millimeter-wave devices; millimeter-wave technology; power amplifiers; traveling-wave tubes (TWTs); DEVICES; DESIGN;

D O I：

10.1109/TED.2021.3068926

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：

We present the experimental demonstration of a traveling-wave tube (TWT) power amplifier operating in the W -band (75-110 GHz) frequency range. The device is based on a serpentine waveguide (SWG) amplification circuit, a slow wave circuit type capable of high power and broad instantaneous bandwidth in the upper millimeter-wave range. A 20 kV, 140-mA round solenoid-focused electron beam powers the device. At 20 kV, we measure 215 +/- 2 W peak RF output power at 93 GHz with 20.1 +/- 0.15 dB saturated gain, pulsed at 0.1% duty. We observe 10-GHz instantaneous amplification bandwidth at 100-W minimum output power, covering the range 88-98 GHz. Operating at 20.8 kV, the TWT produces 285 +/- 3 W at 91 GHz with 22.4 +/- 0.15 dB gain, and 7 GHz, 3-dB bandwidth. The peak electronic efficiency measured is approximately 10%.

引用

页码：2492 / 2498

页数：7

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