The theoretical analysis and the experiment of perturbation techniques to the quantitative measurement of electric field characteristics in a 94 GHz extended interaction resonant cavity (EIRC) are described. Parameters such as the observed reflection coefficient (S₁₁) and resonant frequency at the disturbance point can be adopted to determine the Q-factor, relative electric field intensity, and distribution of the EIRC. In the experiment stage, the frequency deviation characteristics of the tested EIRC under the influence of the metallic sphere are consistent with the simulation results, and the relative error of the frequency deviation is 4.40%. This provides an effective solution for studies of the performance monitoring of millimeter–submillimeter-wave electronic devices and the exploration of high-frequency material science.

中文翻译：

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基于摄动技术的W波段扩展相互作用共振腔中轴向场分布的测量

描述了一种用于定量测量94 GHz扩展相互作用共振腔（EIRC）中电场特性的扰动技术的理论分析和实验。可以采用诸如观测到的反射系数（S ₁₁）和干扰点处的谐振频率之类的参数来确定Q因子，相对电场强度和EIRC的分布。在实验阶段，被测EIRC在金属球的作用下的频偏特性与仿真结果一致，频偏的相对误差为4.40％。这为研究毫米-亚毫米波电子设备的性能监控以及探索高频材料科学提供了有效的解决方案。