A Compact Extremely High Frequency MPM Power Amplifier

被引：35

作者：

Armstrong, Carter M. ^{[1
]}

Kowalczyk, Richard ^{[1
]}

Zubyk, Andrew ^{[1
]}

Berg, Kevin ^{[1
]}

Meadows, Clark ^{[1
]}

Chan, Danny ^{[1
]}

Schoemehl, Thomas ^{[1
]}

Duggal, Ramon ^{[1
]}

Hinch, Nora ^{[2
]}

True, Richard B. ^{[1
]}

Tobin, Robert ^{[1
]}

Sweeney, Michael ^{[1
]}

Weatherford, Brandon ^{[3
]}

机构：

[1] L3 Technol, Electron Devices Div, Torrance, CA 90505 USA

[2] IPG Photon Inc, Mountain View, CA 94041 USA

[3] Stanford Linear Accelerator Ctr, Menlo Pk, CA 94025 USA

来源：

IEEE TRANSACTIONS ON ELECTRON DEVICES | 2018年 / 65卷 / 06期

关键词：

Communications; extremely high frequency (EHF); G-band; microwave power module (MPM); millimeter-wave; power amplifier; radar; subterahertz; traveling wave tube (TWT); vacuum electronics;

D O I：

10.1109/TED.2018.2808327

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：

The development of a compact radio frequency (RF) vacuum power amplifier for high-resolution airborne radar is described. The amplifier, a microwave power module (MPM), operates in the upper millimeter-wave frequency band of 231.5-235 GHz providing a peak output power of 32 W. Common with previous extremely high frequency MPM development at Electron Devices, the G-band MPM consists of a periodic permanent magnet focused serpentine waveguide traveling wave tube (TWT) and aminiaturized 20-kV electronicpower conditioner. Input drive to the MPM for saturation is around 10 mW. Low-loss chemical vapor deposition diamond WR-4.3 windows serve as the input and output ports of the TWT. Due to the high duty of the radar application, a four-stage TWT collector is employed for beam energy recovery. The MPM operates from a 270-Vdc power source. TwoMPM configurations have been constructed: a single integrated unit for laboratory testing and a split-package configuration for integration in a standard electro-optical/infrared gimbal. The split-package flight test unit has a maximum prime power requirement of 176W, corresponding to an overall amplifier efficiency of 9%. The radar sensor has been flown on amodified DC-3 test bed with high-resolution real-time video imagery obtained under cloud-obscured operating conditions.

引用

页码：2183 / 2188

页数：6

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