摘要
根据角向分区产生双频率高功率微波(HPM)的设计思路,开展了基于谐振腔深度角向分区模型的L波段双频磁绝缘线振荡器(BFMILO)的实验研究,建立了BFMILO的实验系统和测量系统,热测了BFMILO的辐射方向图,通过辐射场功率密度积分得到了输出微波的功率.在电子束电压约为420 kV,管电流约为34 kA的条件下,L波段BFMILO输出的微波频率分别为1.26 GHz和1.45 GHz,对应的微波功率分别为398 MW和222 MW.并初步得到了谐振腔深度的角向分区比例不同的BFMILO的初步实验结果.实验研究得到了稳定的双频率HPM,成功地研制出了L波段BFMILO,实验与理论研究的结果比较一致,验证了BFMILO产生稳定的HPM的可行性,为双频HPM器件研究探索出一个新方向.
Experimental investigation of an L-band bifrequency（BF） magnetically insulated transmission line oscillator（MILO） based on azimuthal partition of cavity-depth, is carried out for the first time. Experimental system and measurement system of the BFMILO are set up. Far-field patterns of the antenna of the L-band BFMILO are obtained, and the total microwave power is obtained by integral of the power density of radiation field. Employing an electron beam of 420 kV, 34 kA, an L-band BFMILO can generate high power microwave （HPM） with two stable and separate frequencies. They are 1.26 GHz and 1.45 GHz respectively with power of 398 MW and 222 MW. Preliminary experimental results of BFMILOs with different azimuthal partition proportion are presented. The investigation proves the feasibility that BFMILO can generate HPM with two stable frequencies, which indicates an L-band BFMILO is developed successfully for the first time. A new direction of HPM investigations is pointed out.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
2009年第7期4548-4555,共8页
Acta Physica Sinica
基金
国家计划项目资助的课题~~
