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供研究用微波辐射场一般需要构造自由空间模拟条件，但军事、工业、通信等实用微波场会因环境物理因素作用产生一定程度的畸变。人体也会因介质的不均匀性和众多组织界面的存在，引起微波能量在身体各处的吸收产生很大的变异。本研究采用金属材料、绝缘材料、常用地基材料做为微波暗室的基底材料，测量并比较了它们对微波场分布的影响，找出了它们的行为的初步规律．在实验基础上， 提出了对微波非热效应值得注意的可能存在的作用机制。
Microwave radiation fields for research generally need to construct free-space conditions for simulation. However, practical microwave fields such as military, industrial and communications fields may experience a degree of distortion due to environmental physical factors. The human body also causes a great variation in the absorption of microwave energy throughout the body due to the inhomogeneity of the medium and the presence of numerous tissue interfaces. In this study, metallic materials, insulating materials and common ground materials were used as the substrate materials in microwave anechoic chamber. Their effects on microwave field distribution were measured and compared, and the preliminary laws of their behavior were found out. On the basis of the experiment, a noteworthy possible mechanism of action of microwave non-thermal effect is proposed.