Intelligent Reflecting Surfaces: Physics, Propagation, and Pathloss\n Modeling

2019/10/07 by Özgecan Özdoğan, Emil Björnson, Özdogan, Özgecan +3 · 10 citations
Engineering · Materials Science · #Advanced Antenna and Metasurface Technologies #Advanced Wireless Communication Technologies #Applied Physics (physics.app-ph) #Computational Physics (physics.comp-ph) #FOS: Electrical engineering #FOS: Physical sciences #Metamaterials and Metasurfaces Applications #Signal Processing (eess.SP) #electronic engineering #information engineering

paper · pdf · doi:10.48550/arxiv.1911.03359

openalex publication_date 2019/10/07 · openalex created_date 2022/07/28 · openalex updated_date 2026/07/28

Abstract

Intelligent reflecting surfaces can improve the communication between a\nsource and a destination. The surface contains metamaterial that is configured\nto "reflect" the incident wave from the source towards the destination. Two\nincompatible pathloss models have been used in prior work. In this letter, we\nderive the far-field pathloss using physical optics techniques and explain why\nthe surface consists of many elements that individually act as diffuse\nscatterers but can jointly beamform the signal in a desired direction with a\ncertain beamwidth. We disprove one of the previously conjectured pathloss\nmodels.\n

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