基于波导等效阻抗建模用于钛铁矿微波还原的谐振腔体研究  

Research on the Multimode Cavity Designing for Deoxidizing Ilmenite Based on Waveguide Equivalent Impedance

作　　者：陈华[1,2] 刘晨辉[2,3] 周俊文[2,3] 彭金辉[2,3] 郭胜惠[2,3] 

机构地区：[1]昆明理工大学理学院,昆明650500 [2]昆明理工大学非常规冶金省部共建教育部重点实验室,昆明650093 [3]昆明理工大学冶金与能源工程学院,昆明650093

出　　处：《材料导报》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)

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.

关 键 词：多模谐振腔 等效阻抗 HFSS软件 微波加热 

分 类 号：TF062[冶金工程—冶金物理化学]