X波段低磁场相对论返波管振荡器实验研究  

Experimental Study on X-Band Relativistic Backward Wave Oscillator with Low Magnetic Field

作　　者：邵剑波[1,2] 马乔生[2] 谢鸿全[1] 李正红[2] 

机构地区：[1]西南科技大学理学院,绵阳621010 [2]中国工程物理研究院应用电子学研究所高功率微波技术重点实验室,绵阳621900

出　　处：《微波学报》2015年第3期62-65,69,共5页Journal of Microwaves

基　　金：国家自然科学基金项目(61271109)

摘　　要：基于现有永磁磁体的参数,并结合高功率微波器件的优点,设计了一个X波段低磁场相对论返波管振荡器,当引导磁场强度为0.48T、二极管束压和束流分别为530 k V和7.0 k A时,通过粒子模拟软件得到频率9.42GHz、功率1.11GW的模拟微波输出,器件束波转换效率30%。在强流电子束加速器平台上进行实验研究,当二极管电压500k V、电流6.2k A、引导磁场强度0.46T时,得到频率为9.40GHz、功率为900MW、脉宽为32ns的微波输出。该实验结果为低磁场器件实现高功率、高效率微波输出及永磁包装打下了良好的基础。Based on the magnetic parameters of the existing permanent magnet and the advantages of high power microwave devices,a X band relativistic backward wave oscillator( RBWO) with low magnetic field is designed. It is shown from the PIC( particle in cell) simulation that when the strength of guiding magnetic field is 0. 48 T while the electron voltage and the beam current 530 k V and 7. 6k A respectively,the 1. 11 GW output microwave power with 9. 42 GHz frequency and30% efficiency is obtained. The experiment was performed,in which the output power 900 MW with the frequency 9. 40 GHz and the corresponding pulse width 32 ns was obtained for guiding magnetic field 0. 46 T,beam voltages 500 k V and beam current 6. 2k A. The experimental results lay a good foundation for the low magnetic field devices to achieve higher power and higher efficiency microwave output and its permanent magnet packaging.

关 键 词：相对论返波管 低引导磁场 实验研究 

分 类 号：TN125[电子电信—物理电子学]