1-bit Mechanically Reconfigurable Metasurface as a Beam Splitter for Indoor Environments at 28 GHz

Marcos Baena-Molina; Ángel Palomares-Caballero; Ginés Martínez-García; Juan E. Galeote-Cazorla; Alejandro Ramírez-Arroyo; Juan F. Valenzuela-Valdés

doi:10.1109/LAWP.2025.3554271

1-bit Mechanically Reconfigurable Metasurface as a Beam Splitter for Indoor Environments at 28 GHz

Marcos Baena-Molina, Ángel Palomares-Caballero, Ginés Martínez-García, Juan E. Galeote-Cazorla, Alejandro Ramírez-Arroyo, Juan F. Valenzuela-Valdés

Research output: Contribution to journal › Journal article › Research › peer-review

1 Downloads (Pure)

Abstract

This letter presents a mechanically reconfigurable metasurface (MRM) designed to operate in the n257 FR2 5G band with the ability to provide a reconfigurable beam splitting. The MRM unit cell consists of a metallic rod with a metallic cone-shaped element at its end. The actuator is an electromagnet that provides 1-bit reconfiguration by modifying the position of the cone-shaped element. A prototype is experimentally assessed. The measurements reveal a phase shift of 180° ± 30° from 26.5 GHz to 29.5 GHz. Several beam configurations for the MRM have been measured where the scattering patterns show good agreement with the simulations. To demonstrate the potential of the proposed MRM, an indoor field trial has been performed. In a novel way, a simultaneously coverage of two different indoor zones has been achieved with an improvement of more than 10.9 dB of received average power.

Original language	English
Article number	10938183
Journal	IEEE Antennas and Wireless Propagation Letters
Pages (from-to)	1-5
Number of pages	5
ISSN	1548-5757
DOIs	https://doi.org/10.1109/LAWP.2025.3554271
Publication status	E-pub ahead of print - 25 Mar 2025

Keywords

Actuators
Antenna measurements
Electromagnets
Gain
Loss measurement
Metasurfaces
Phase measurement
Reconfigurable intelligent surfaces
Reflection
Transmitting antennas
mechanical reconfiguration
beam splitting
millimeter waves
Reconfigurable metasurface

Access to Document

10.1109/LAWP.2025.3554271

Open Access Article Final published version, 42.1 MBLicence: CC BY-NC-ND 4.0

AUB Link

Search for the material in Aalborg University Library's search engine

Cite this

Baena-Molina, M., Palomares-Caballero, Á., Martínez-García, G., Galeote-Cazorla, J. E., Ramírez-Arroyo, A., & Valenzuela-Valdés, J. F. (2025). 1-bit Mechanically Reconfigurable Metasurface as a Beam Splitter for Indoor Environments at 28 GHz. IEEE Antennas and Wireless Propagation Letters, 1-5. Article 10938183. Advance online publication. https://doi.org/10.1109/LAWP.2025.3554271

@article{706c33c4a775457fa8424cb84d7db908,

title = "1-bit Mechanically Reconfigurable Metasurface as a Beam Splitter for Indoor Environments at 28 GHz",

abstract = "This letter presents a mechanically reconfigurable metasurface (MRM) designed to operate in the n257 FR2 5G band with the ability to provide a reconfigurable beam splitting. The MRM unit cell consists of a metallic rod with a metallic cone-shaped element at its end. The actuator is an electromagnet that provides 1-bit reconfiguration by modifying the position of the cone-shaped element. A prototype is experimentally assessed. The measurements reveal a phase shift of 180° ± 30° from 26.5 GHz to 29.5 GHz. Several beam configurations for the MRM have been measured where the scattering patterns show good agreement with the simulations. To demonstrate the potential of the proposed MRM, an indoor field trial has been performed. In a novel way, a simultaneously coverage of two different indoor zones has been achieved with an improvement of more than 10.9 dB of received average power.",

keywords = "Actuators, Antenna measurements, Electromagnets, Gain, Loss measurement, Metasurfaces, Phase measurement, Reconfigurable intelligent surfaces, Reflection, Transmitting antennas, mechanical reconfiguration, beam splitting, millimeter waves, Reconfigurable metasurface",

author = "Marcos Baena-Molina and {\'A}ngel Palomares-Caballero and Gin{\'e}s Mart{\'i}nez-Garc{\'i}a and Galeote-Cazorla, {Juan E.} and Alejandro Ram{\'i}rez-Arroyo and Valenzuela-Vald{\'e}s, {Juan F.}",

year = "2025",

month = mar,

day = "25",

doi = "10.1109/LAWP.2025.3554271",

language = "English",

pages = "1--5",

journal = "IEEE Antennas and Wireless Propagation Letters",

issn = "1548-5757",

publisher = "IEEE (Institute of Electrical and Electronics Engineers)",

}

TY - JOUR

T1 - 1-bit Mechanically Reconfigurable Metasurface as a Beam Splitter for Indoor Environments at 28 GHz

AU - Baena-Molina, Marcos

AU - Palomares-Caballero, Ángel

AU - Martínez-García, Ginés

AU - Galeote-Cazorla, Juan E.

AU - Ramírez-Arroyo, Alejandro

AU - Valenzuela-Valdés, Juan F.

PY - 2025/3/25

Y1 - 2025/3/25

N2 - This letter presents a mechanically reconfigurable metasurface (MRM) designed to operate in the n257 FR2 5G band with the ability to provide a reconfigurable beam splitting. The MRM unit cell consists of a metallic rod with a metallic cone-shaped element at its end. The actuator is an electromagnet that provides 1-bit reconfiguration by modifying the position of the cone-shaped element. A prototype is experimentally assessed. The measurements reveal a phase shift of 180° ± 30° from 26.5 GHz to 29.5 GHz. Several beam configurations for the MRM have been measured where the scattering patterns show good agreement with the simulations. To demonstrate the potential of the proposed MRM, an indoor field trial has been performed. In a novel way, a simultaneously coverage of two different indoor zones has been achieved with an improvement of more than 10.9 dB of received average power.

AB - This letter presents a mechanically reconfigurable metasurface (MRM) designed to operate in the n257 FR2 5G band with the ability to provide a reconfigurable beam splitting. The MRM unit cell consists of a metallic rod with a metallic cone-shaped element at its end. The actuator is an electromagnet that provides 1-bit reconfiguration by modifying the position of the cone-shaped element. A prototype is experimentally assessed. The measurements reveal a phase shift of 180° ± 30° from 26.5 GHz to 29.5 GHz. Several beam configurations for the MRM have been measured where the scattering patterns show good agreement with the simulations. To demonstrate the potential of the proposed MRM, an indoor field trial has been performed. In a novel way, a simultaneously coverage of two different indoor zones has been achieved with an improvement of more than 10.9 dB of received average power.

KW - Actuators

KW - Antenna measurements

KW - Electromagnets

KW - Gain

KW - Loss measurement

KW - Metasurfaces

KW - Phase measurement

KW - Reconfigurable intelligent surfaces

KW - Reflection

KW - Transmitting antennas

KW - mechanical reconfiguration

KW - beam splitting

KW - millimeter waves

KW - Reconfigurable metasurface

UR - http://www.scopus.com/inward/record.url?scp=105001281579&partnerID=8YFLogxK

U2 - 10.1109/LAWP.2025.3554271

DO - 10.1109/LAWP.2025.3554271

M3 - Journal article

SN - 1548-5757

SP - 1

EP - 5

JO - IEEE Antennas and Wireless Propagation Letters

JF - IEEE Antennas and Wireless Propagation Letters

M1 - 10938183

ER -

1-bit Mechanically Reconfigurable Metasurface as a Beam Splitter for Indoor Environments at 28 GHz

Abstract

Keywords

Access to Document

AUB Link

Other files and links

Fingerprint

Cite this