微波化学谐振腔的模式抑制研究

对一种微波化学反应腔及其中的圆柱腔如何实现单模谐振和调谐进行了研究,得到了不会因为置入材料的不同而产生失配的新型系统结构。在腔体和系统设计中,谐振腔由谐振腔主体、谐振腔上盖和谐振腔下盖组成,谐振腔下盖通过电机升降实现上下移动,由此改变腔体的谐振频率,实现了2.2~2.6 GHz 的调谐范围。利用标量函数法分析扇形腔的场结构,根据目标模式的分布特点提出了多种干扰模式净化技术,最后得到了频率范围为2.2~2.6 GHz 的单模谐振腔。

Research on the Mode Inhibition of Microwave Chemical Resonant Cavity

In this paper, a microwave chemical resonant cavity and a method for realizing single-mode resonance and tuning of the reaction chamber are studied. In this way, a new system structure that does not cause mismatch due to different materials insertion is obtained. In the system design, the cavity is composed of the cavity body, the upper and lower cover of the resonant cavity, and the lower cover of the resonant cavity is moved up and down by the lifting of the motor to change the resonant frequency of the cavity, achieving a tuning range of 2.2 GHz to 2.6 GHz. Then, the field structure of fan-shaped cavity is analyzed by the scalar function method, a variety of interference mode purification technologies are presented according to the distribution characteristics of the target mode. Finally, a single-mode resonant cavity with frequency range from 2.2 GHz to 2.6 GHz is obtained.