A high power millimeter wave TWT amplifier

1980 International Electron Devices Meeting Pub Date : 1900-01-01 DOI:10.1109/IEDM.1980.189781

B. James, D. Schenk

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引用次数: 1

Abstract

A coupled cavity traveling wave tube operating at 35 gigahertz has been tested to an output power of 30 kilowatts peak and 9 kilowatts average. This high power millimeter wave amplifier is designed specifically for a coherent millimeter wave radar which is being designed and constructed by Massachusetts Institute of Technology, Lincoln Laboratory, under the sponsorship of the US Army Ballistic Missile Defense Advanced Technology Center. The amplifier was operated at beam voltage of 46.5 kilovolts with a beam current of 4.0 amperes. The tube requirements were 30 kilowatts peak, 3 kilowatts average over 1000 megahertz, 1 dB bandwidth, at a center frequency of 35 gigahertz with 50 dB saturated gain. These requirements were achieved during the development program with 17 percent interaction efficiency. The paper will describe the design concepts used in the development of this milimeter wave TWT amplifier. Design of the electron beam system, which is considered the highest power density electron beam generated to date, and the unique coupled cavity circuit design will be discussed in some detail. Test data for both the beam system and r.f. circuit will be presented. The r.f. performance characteristics of the tube will also be discussed and measured data presented.

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高功率毫米波行波管放大器

对工作频率为35千兆赫的耦合腔行波管进行了测试，峰值输出功率为30千瓦，平均输出功率为9千瓦。这种高功率毫米波放大器是专门为相干毫米波雷达设计的，该雷达由麻省理工学院林肯实验室在美国陆军弹道导弹防御先进技术中心的赞助下设计和建造。放大器工作在46.5千伏的束流电压和4.0安培的束流电流下。管的要求是峰值30千瓦，1000兆赫平均3千瓦，带宽1 dB，中心频率为35千兆赫，饱和增益为50 dB。这些需求在开发项目中以17%的交互效率被实现。本文将描述这种毫米波行波放大器的设计理念。电子束系统的设计，被认为是迄今为止产生的最高功率密度的电子束，和独特的耦合腔电路的设计将被详细讨论。本文将介绍波束系统和射频电路的测试数据。本文还将讨论该管的射频性能特性，并给出测量数据。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

1980 International Electron Devices Meeting

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