Electromagnetic Model of Reflective Intelligent Surfaces
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This is a code package is related to the follow scientific article:
Filippo Costa and Michele Borgese, “[Electromagnetic Model of Reflective Intelligent Surfaces] https://arxiv.org/pdf/2102.10666.pdf ” submitted to IEEE Transactions on Wireless Communications
The package contains a Matlab code that reproduces some of the numerical results and figures in the article.
Abstract of Article
We present an accurate and simple analytical model for the computation of the reflection amplitude and phase of Reflecting Intelligent Surfaces. The model is based on a transmission-line circuit representation of the RIS which takes into account the physics behind the structure including the effect of all relevant geometrical and electrical parameters. The proposed representation of the RIS allows to take into account the effect of incidence angle, the mutual coupling among elements the effect of the interaction of the periodic surface with the RIS ground plane. It is shown that, by using the proposed approach, it is possible to maximize the power received by a user in a RIS-assisted link without recurring to onerous electromagnetic simulations. The proposed model aims at filling the gap in the design of RIS assisted communications algorithms that are usually disconnected from physical implementation issues and realistic performance of these surfaces.
Content of Code Package
The package contains a Matlab function that computes the reflection coefficient of a RIS comprising an array of patches loaded with varactor diodes
See each file for further documentation.
License and Referencing
This code package is licensed under the GPLv2 license. If you in any way use this code for research that results in publications, please cite our original article listed above.