On the Aperture Efficiency of Intelligent Reflecting Surfaces

Shih-Kai Chou; Okan Yurduseven; Hien-Quoc Ngo; Michalis Matthaiou

doi:10.1109/LWC.2020.3039483

On the Aperture Efficiency of Intelligent Reflecting Surfaces

Shih-Kai Chou, Okan Yurduseven, Hien-Quoc Ngo, Michalis Matthaiou

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Abstract

The concept of intelligent reflecting surfaces (IRS) has recently gained significant attention due to their ability to manipulate the impinging electromagnetic signals and offer anomalous reflections. In this letter, we derive and address the missing piece of prior works, namely the IRS aperture efficiency. Our work provides practical guidelines for selecting the aperture size of the reflecting surface from an antenna designing point of view by taking tapering level into account, and also, revisits the pathloss expression based on a realistic physical model.

Original language	English
Number of pages	5
Journal	IEEE Wireless Communications Letters
Early online date	20 Nov 2020
DOIs	https://doi.org/10.1109/LWC.2020.3039483
Publication status	Early online date - 20 Nov 2020

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On the Aperture Efficiency of Intelligent Reflecting Surfaces
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abstract = "The concept of intelligent reflecting surfaces (IRS) has recently gained significant attention due to their ability to manipulate the impinging electromagnetic signals and offer anomalous reflections. In this letter, we derive and address the missing piece of prior works, namely the IRS aperture efficiency. Our work provides practical guidelines for selecting the aperture size of the reflecting surface from an antenna designing point of view by taking tapering level into account, and also, revisits the pathloss expression based on a realistic physical model.",

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