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缩比模拟是研究电磁效应的有效方法。微波波段的大尺度缩比需要毫米波甚至太赫兹波段的辐射源,但实现技术复杂。提出使用光波模拟电磁散射效应的方法,并从光波的本质、光与无线电波的反射、绕射和干涉效应等方面研究分析了光波与无线电波的物理相似性;从长相干光源、波束赋形、偏振方式实现、宽视角接收、散射体电磁效应模拟等方面分析论证了光学系统模拟电磁系统散射效应的技术可行性。研究结果对电磁系统特别是微波波段电磁系统的大尺度缩比模拟具有参考意义。
Shrink ratio simulation is an effective way to study electromagnetic effects. Large-scale scaling of the microwave band requires millimeter-wave and even terahertz radiation sources, but the technology is complex. The method of using electromagnetic waves to simulate electromagnetic scattering is proposed. The physical similarity between light waves and radio waves is studied from the aspects of the nature of light waves, the reflection, diffraction and interference effects of light and radio waves. From the perspective of long coherent light sources, , The realization of polarization mode, the wide viewing angle reception and the simulation of scatterer electromagnetic effect, demonstrate the feasibility of the optical system to simulate the scattering effect of electromagnetic system. The research results have reference significance for large-scale scale-down simulation of electromagnetic system, especially microwave band electromagnetic system.