摘要
介绍了两种常见的具有过渡结构的模式转换器;采用有限元法对一种过渡结构的矩圆模式转换器内的电磁分布进行计算模拟;根据模拟电场的形状以及其它相关的数据来判断此时矩圆模式转换器的形状和性能;分析了两种模式转换器的局限性并给出了克服这种局限性的方案。数值模拟结果表明,选择合适的过渡结构的矩圆模式转换器能有效的传输微波能量并激发所需的模式,为设计高效的微波传输系统提供了理论依据。
Two common mode transducers with transition structure were introduced. The electromag- netic field distribution in one rectangular circular mode transducer was analyzed with finite elements method. Properties of the mode transducer were judged according to the distribution of the electromagnetic field and other relevant data. I.imitations of these two kinds of mode converters were analyzed and some countermeasures were suggested. The simulation results show that proper mode transducer with transition structure can transmit microwave energy effectively and stimulate the required microwave mode, which provides theory basis for design of efficient microwave transmission system.
出处
《真空电子技术》
2016年第4期56-59,共4页
Vacuum Electronics
基金
国家自然科学基金(NO.11175137)
湖北省教育厅项目(Q20151517)
关键词
矩形波导
圆波导
模式
设计
Rectangular waveguide, Circular waveguide, Microwave mode, Design
