Efficient Ray- Tracing Model for Generalized 2D Dielectric Lenses Combined with Arrays

In this paper a simple and efficient ray-tracing model is presented to evaluate two-dimensional (2D) multilayer dielectric lenses combined with arrays. The proposed algorithm is capable of accurately evaluating the reflection and absorption losses of the lens. Two examples have been simulated with the proposed algorithm and compared with a commercial full-wave simulator. We demonstrate that the proposed method provides a very good agreement with the simulations, reducing considerably the computation time, and thus offering an effective tool for design optimization.