为了研究微波与化学反应体系的相互作用，关键是对化学反应体系的等效复介电常数进行研究。
The key problem is to obtain the effective permittivity of chemical system when we study the interaction between microwave and chemical reaction.
基于介质圆柱电磁散射理论和等效介质理论，导出了金属柱微粒-电介质复合材料的等效相对介电常数的表达式。
Based on the electromagnetic scattering theory of dielectric wire and effective medium theory, the formula of the effective dielectric constant of metal wire-dielectric composites is derived.
基于降雨衰减机理，利用雨介质的等效介电常数模型计算了降雨的特征衰减。
Based on the mechanism of rain attenuation, the special attenuation by rain is calculated by the equivalent dielectric permittivity model.
应用等效网络法分别测量了空气、聚四氟乙烯及微波介质陶瓷材料片状试样的介电常数。
The dielectric constant of air, polytetrafluoroethylene (PTFE) and the microwave dielectric ceramics sheets is measured by the equivalent network method.
吸波材料性能的优劣与复合物的等效磁导率与介电常数密切相关。
The performance of RAM is closely related to effective permeability and permittivity of composites.
本文用等效介电常数法计算了镜象波导各模式的归一化截止频率，给出了通用的模式图。
The normalized cut-off frequencies of Epqy and Epqx modes for image waveguide arc investigated by EDC method. A generalized mode chart for image waveguide is given.
通过求解电容器的等效电容，进一步导出复合材料有效介电常数的计算公式。
By solving the equivalent capacitance of the capacitor, the formulas of effective permittivity are derived.
计算结果与CST - MWS的模拟结果吻合良好，说明所提出的计算等效相对介电常数的方法和计算色散方程的方法对环板慢波结构是切实可行的。
The results manifest that the dielectric-loading can lower the operating voltage of the ring-plane slow-wave structure. Good accordance was obtained between results by this method and that of CST-MWS.
计算结果与CST - MWS的模拟结果吻合良好，说明所提出的计算等效相对介电常数的方法和计算色散方程的方法对环板慢波结构是切实可行的。
The results manifest that the dielectric-loading can lower the operating voltage of the ring-plane slow-wave structure. Good accordance was obtained between results by this method and that of CST-MWS.
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