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详细讨论了石英管对平行WR-430波导谐振腔内部电场强度的影响。在没有石英管时,电场强度在每个狭缝附近发生突变,其峰值沿着一个波导逐渐减小,而沿着另外一个波导逐渐增大。存在石英管时,内部电场变弱且沿着石英管内表面无规则振荡,而且电场沿着两个波导之间的中心轴线波动。当石英管壁厚度和离上下波导的距离分别为5和2mm时,谐振腔内部的平均电场强度达到最大,而且电场强区面积较大。当上述两者分别超过5和2mm时,内部电场的最大值会随着石英管壁厚度和距离逐渐减弱。低气压和大气压空气等离子体在谐振腔内部被激发,其形态比较接近各自的仿真的电场强度分布。
The effect of quartz tube on the electric field intensity inside the parallel WR-430 waveguide cavity is discussed in detail. In the absence of a quartz tube, the electric field intensity changes abruptly near each slit, with its peak decreasing along one waveguide and increasing along the other. In the presence of a quartz tube, the internal electric field weakens and irregularly oscillates along the inner surface of the quartz tube, and the electric field fluctuates along the central axis between the two waveguides. When the thickness of the quartz tube wall and the distance from the upper and lower waveguides are 5 and 2 mm respectively, the average electric field strength inside the cavity reaches the maximum and the area of the electric field is large. When the above two are more than 5 and 2mm, respectively, the maximum value of the internal electric field will gradually decrease with the thickness and distance of the quartz tube wall. Low-pressure and atmospheric air plasmas are excited inside the resonator, and their morphology is closer to the simulated field strength distribution.