Experimental Analysis of Biasing Voltage Generation in Wave-Controlled RIS

Fuente: arXiv
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Main Authors: Saavedra-Melo, Miguel, Bradshaw, Benjamin, Yao, Vanessa, Ayanoglu, Ender, Swindlehurst, Lee, Capolino, Filippo
Format: Preprint
Published: 2025
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author Saavedra-Melo, Miguel
Bradshaw, Benjamin
Yao, Vanessa
Ayanoglu, Ender
Swindlehurst, Lee
Capolino, Filippo
author_facet Saavedra-Melo, Miguel
Bradshaw, Benjamin
Yao, Vanessa
Ayanoglu, Ender
Swindlehurst, Lee
Capolino, Filippo
contents Reconfigurable intelligent surfaces (RISs), an emerging technology proposed for inclusion in next generation wireless communication systems, are programmable surfaces that can adaptively reflect incident electromagnetic radiation in different desired directions. To reduce the complexity and physical profile of conventional RIS designs, a novel concept known as Wave-Controlled RIS has been proposed, in which standing waves along a transmission line are used to generate the required dc bias for reflective control. This paper shows the design of such a Wave-Controlled RIS and its biasing transmission line. The effectiveness of this approach in generating the correct dc bias from a single standing wave frequency is analyzed through both theoretical modeling and experimental validation, which uncovered a dependence on impedance matching not accounted for by the theory. Additionally, the potential for reflective control using only a single standing wave frequency on the biasing transmission line is explored, demonstrating the ability of single-beam steering toward angles near broadside.
format Preprint
id arxiv_https___arxiv_org_abs_2509_07293
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Experimental Analysis of Biasing Voltage Generation in Wave-Controlled RIS
Saavedra-Melo, Miguel
Bradshaw, Benjamin
Yao, Vanessa
Ayanoglu, Ender
Swindlehurst, Lee
Capolino, Filippo
Signal Processing
Reconfigurable intelligent surfaces (RISs), an emerging technology proposed for inclusion in next generation wireless communication systems, are programmable surfaces that can adaptively reflect incident electromagnetic radiation in different desired directions. To reduce the complexity and physical profile of conventional RIS designs, a novel concept known as Wave-Controlled RIS has been proposed, in which standing waves along a transmission line are used to generate the required dc bias for reflective control. This paper shows the design of such a Wave-Controlled RIS and its biasing transmission line. The effectiveness of this approach in generating the correct dc bias from a single standing wave frequency is analyzed through both theoretical modeling and experimental validation, which uncovered a dependence on impedance matching not accounted for by the theory. Additionally, the potential for reflective control using only a single standing wave frequency on the biasing transmission line is explored, demonstrating the ability of single-beam steering toward angles near broadside.
title Experimental Analysis of Biasing Voltage Generation in Wave-Controlled RIS
topic Signal Processing
url https://arxiv.org/abs/2509.07293