基于光学保角变换的电磁器件设计

保角变换是基于解析函数的一种非常重要的解析方法,利用保角变换可以将虚拟空间中复杂的边界曲线转化为物理空间中简单的边界曲线,从而求解二维平面场问题。文章主要综述并介绍保角变换在几何光学中的应用,通过控制光线传播来设计完美隐身衣、中继透镜、波导弯角和透镜天线等新型电磁器件。最后利用射线追踪仿真和全波仿真对设计加以证明。

Electromagnetic Device Design Based on Optical Conformal Transformation

The conformal transformation is a very important analytical method based on analytic functions. It can be used to transform the complex boundary in the virtual space into a simple one in the physical space to solve the two-dimensional planar field problem. This paper mainly reviews and introduces the application of conformal transformation in geometric optics. Numerous electromagnetic devices such as perfect invisibility cloaks, relay lenses, waveguide bends and lens antennas can be designed by controlling light propagation. Finally, the design is proved by ray tracing simulation and full wave simulation.