摘要
提出了一种利用等效阻抗的思想来设计微波谐振腔。通过计算传输波导的主模等效阻抗与谐振腔近似等效阻抗匹配来确定谐振腔体的尺寸,从而使多模谐振腔与传输波导具有良好的匹配,微波源能够以最小的反射馈入谐振腔内。以钛铁矿作为加热研究的物料,利用HFSS软件分别对单馈口和多馈口多模腔的反射系数进行了优化仿真,并且给出了腔体内场分布的情况,仿真优化的结果与等效阻抗匹配方法计算值接近,验证了根据波导等效阻抗方法来设计腔体结构的可行性,为设计高温微波冶金多模腔体提供了新的参考依据。
The main mode equivalent impedance matching was proposed to design the cavity resonator. The size of multimode cavity was decided by the approximate equivalent impedance equaling to the transmission waveguide equivalent impedance. The waveguide had a good matching with multimode cavity and the microwave power could he mostly fed into muhimode cavity. The HFSS software validated the design of the muhimode cavity by equivalent im- pedance on the load of ilrnenite. The electrical field was also presented and analyzed. The simulation results are nearly consistent with the value calculated by equivalent impedance method, which proved the method is valid and it can pro- vide a reference for the designing of high temperature microwave metallurgy multimode cavity.
出处
《材料导报》
EI
CAS
CSCD
北大核心
2014年第14期133-137,共5页
Materials Reports
基金
国家国际科技合作专项(2012DFA70570)
云南省国际合作项目(2011IA004)
云南省基金面上项目(2013FZ016)
国家自然科学基金(51304097)
关键词
多模谐振腔
等效阻抗
HFSS软件
微波加热
multimode cavity, equivalent impedance, HFSS software, microwave heating
作者简介
陈华：女，1981年生，博士，副教授，主要研究方向为微波冶金反应器设计、电磁场数值计算与仿真E-mail：93056460@qq．com
