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能与现代MEMS技术兼容的单交错梯形慢波电路可应用于短毫米波小型化高功率耦合腔行波管。随着工作频率的上升,微波波段被忽略的慢波电路的导体损耗,在短毫米波段会因金属趋肤效应的加剧而大幅增加。要提高行波管的整体性能,必须考虑损耗并尽量减少它。利用三维电磁场仿真软件对该结构在短毫米波段的损耗特性进行了数值计算,分析了几何尺寸对其的影响,找到了对其影响最明显的敏感尺寸。
A single interleaved trapezoidal trapezoidal wave circuit compatible with modern MEMS technology can be applied to small millimeter-wave miniaturized high-power coupled-cavity traveling-wave tubes. With the increase of the operating frequency, the conductor loss of the slow-wave circuit in the microwave band is greatly increased in the short millimeter band due to the exacerbation of the metal skin effect. To improve the overall performance of the traveling wave tube, we must consider the loss and minimize it. The loss characteristics of the structure in the short millimeter wave band are calculated by using the three-dimensional electromagnetic field simulation software. The influence of the geometrical dimension on the structure is analyzed and the most sensitive sensitive dimension is found.