新型毫米波回旋放大器探索  

Exploration of the Amplification Mechanism of a Novel Gyrotron Amplifier

作　　者：杜朝海[1,2] 刘濮鲲[1] 

机构地区：[1]中国科学院电子学研究所,中国科学院高功率微波源与技术重点实验室,北京100190 [2]中国科学院研究生院,北京100049

出　　处：《微波学报》2010年第S1期485-487,共3页Journal of Microwaves

基　　金：国家自然科学基金(60871051,60871047,60971072)

摘　　要：回旋放大器能够在毫米波频段产生百千瓦量级的相干电磁辐射,在高分辨率成像雷达、电子对抗和远程通信等领域都有广阔的应用前景。本文提出研究基于新型互作用电路结构回旋放大器。该回旋放大器采用电子回旋脉塞级联群聚段、损耗介质加载过模漂移段和高阶模式工作输出段等新型的电路结构,以解决当前回旋行波放大器线性段稳定性,提高系统的平均功率处理能力和提高非线性段峰值功率量级,以推动该类器件进一步发展。A gyrotron amplifier is capable of generating hundreds of kilowatts coherent radiation in millimeter wave range,and is promising in applications of high resolution imaging radars,electronic countermeasure systems and remote communication systems.The paper presents a new gyrotron amplifier based on a novel interaction circuit.It adopts an electron cyclotron maser(ECM)-cascaded prebunching stage,overmoded drifting stage loaded with lossy material and higher order mode output stage.These technologies intend to solve the stability in the linear stage,to upgrade the endurable ability of average power,and to enhance the peak power at the output stage,as a way to promote the development of suck kind of millimeter wave gyrotron amplifiers.

关 键 词：毫米波 回旋放大器 ECM级联 过模互作用 双模组合 

分 类 号：TN722[电子电信—电路与系统]