A Modified 1-Bit Unit-Cell for mmWave RIS Optimized at Extreme Incident Angle

Gabriel Goncalves Machado; Adrian McKernan; Chao Gu; Dmitry Zelenchuk; Mondeep Saikia; Okan Yurduseven; Simon  Cotton; Muhammad Ali Babar Abbasi

doi:10.1109/AP-S/INC-USNC-URSI52054.2024.10685974

A Modified 1-Bit Unit-Cell for mmWave RIS Optimized at Extreme Incident Angle

Gabriel Goncalves Machado
, Adrian McKernan
, Chao Gu
, Dmitry Zelenchuk
, Mondeep Saikia
, Okan Yurduseven
, Simon Cotton
, Muhammad Ali Babar Abbasi

Queens University Belfast

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

2 Citations (Scopus)

17 Downloads (Pure)

Abstract

This paper presents a modified wideband reflective unit-cell for Reconfigurable Intelligent Surface (RIS) operating at millimeter-wave (mmWave) n257 band. The unit cell is specifically optimized at extreme incident angles and utilizes dual-polarization reflection with p-i-n diodes for a 1-bit RIS control. The design exhibits superior reflective phase difference close to 180° across most of the 3 GHz bandwidth (26.50-29.45 GHz) and reflects over 74% of the energy even at extreme angle of incidence as high as 70° from the RIS boresight. The enhanced reflectivity minimizes losses, and precise phase control improves beam pointing accuracy crucial for low-complexity 1-bit RIS. Full-wave electromagnetic simulations confirm effective performance. The unit cell is compared with the current state-of-the-art unit cells, in terms of bandwidth, polarization, phase accuracy and operation in extreme angles of incidence.

Original language	English
Title of host publication	2024 IEEE International Symposium on Antennas and Propagation and INC/USNC‐URSI Radio Science Meeting (AP-S/INC-USNC-URSI)
Publisher	IEEE
Pages	1177-1178
Number of pages	2
ISBN (Electronic)	79-8-3503-6990-8
ISBN (Print)	979-8-3503-6991-5
DOIs	https://doi.org/10.1109/AP-S/INC-USNC-URSI52054.2024.10685974
Publication status	Published online - 30 Sept 2024
Event	2024 IEEE International Symposium on Antennas and Propagation and INC/USNC‐URSI Radio Science Meeting (AP-S/INC-USNC-URSI) - Firenze, Italy Duration: 14 Jul 2024 → 19 Jul 2024

Publication series

Name
Publisher	IEEE
ISSN (Print)	1522-3965
ISSN (Electronic)	1947-1491

Conference

Conference	2024 IEEE International Symposium on Antennas and Propagation and INC/USNC‐URSI Radio Science Meeting (AP-S/INC-USNC-URSI)
Country/Territory	Italy
City	Firenze
Period	14/07/24 → 19/07/24

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 9 Industry, Innovation, and Infrastructure
SDG 11 Sustainable Cities and Communities

Keywords

modified 1-bit unit-cell
mmWave RIS optimized
extreme incident angle
reconfigurable intelligent surface

Access to Document

10.1109/AP-S/INC-USNC-URSI52054.2024.10685974

APS_2024_RIS_Unit_cellAuthor Accepted Manuscript, 826 KBLicence: CC BY-NC-ND

Cite this

Goncalves Machado, G., McKernan, A., Gu, C., Zelenchuk, D., Saikia, M., Yurduseven, O., Cotton, S., & Abbasi, M. A. B. (2024). A Modified 1-Bit Unit-Cell for mmWave RIS Optimized at Extreme Incident Angle. In 2024 IEEE International Symposium on Antennas and Propagation and INC/USNC‐URSI Radio Science Meeting (AP-S/INC-USNC-URSI) (pp. 1177-1178). IEEE. Advance online publication. https://doi.org/10.1109/AP-S/INC-USNC-URSI52054.2024.10685974

@inproceedings{e6085db51dc04320b9eae4a7ceac4b5b,

title = "A Modified 1-Bit Unit-Cell for mmWave RIS Optimized at Extreme Incident Angle",

abstract = "This paper presents a modified wideband reflective unit-cell for Reconfigurable Intelligent Surface (RIS) operating at millimeter-wave (mmWave) n257 band. The unit cell is specifically optimized at extreme incident angles and utilizes dual-polarization reflection with p-i-n diodes for a 1-bit RIS control. The design exhibits superior reflective phase difference close to 180° across most of the 3 GHz bandwidth (26.50-29.45 GHz) and reflects over 74\% of the energy even at extreme angle of incidence as high as 70° from the RIS boresight. The enhanced reflectivity minimizes losses, and precise phase control improves beam pointing accuracy crucial for low-complexity 1-bit RIS. Full-wave electromagnetic simulations confirm effective performance. The unit cell is compared with the current state-of-the-art unit cells, in terms of bandwidth, polarization, phase accuracy and operation in extreme angles of incidence.",

keywords = "modified 1-bit unit-cell, mmWave RIS optimized, extreme incident angle, reconfigurable intelligent surface",

author = "\{Goncalves Machado\}, Gabriel and Adrian McKernan and Chao Gu and Dmitry Zelenchuk and Mondeep Saikia and Okan Yurduseven and Simon Cotton and Abbasi, \{Muhammad Ali Babar\}",

year = "2024",

month = sep,

day = "30",

doi = "10.1109/AP-S/INC-USNC-URSI52054.2024.10685974",

language = "English",

isbn = "979-8-3503-6991-5",

publisher = "IEEE",

pages = "1177--1178",

booktitle = "2024 IEEE International Symposium on Antennas and Propagation and INC/USNC‐URSI Radio Science Meeting (AP-S/INC-USNC-URSI)",

address = "United States",

note = " 2024 IEEE International Symposium on Antennas and Propagation and INC/USNC‐URSI Radio Science Meeting (AP-S/INC-USNC-URSI) ; Conference date: 14-07-2024 Through 19-07-2024",

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Goncalves Machado, G, McKernan, A, Gu, C, Zelenchuk, D, Saikia, M, Yurduseven, O, Cotton, S & Abbasi, MAB 2024, A Modified 1-Bit Unit-Cell for mmWave RIS Optimized at Extreme Incident Angle. in 2024 IEEE International Symposium on Antennas and Propagation and INC/USNC‐URSI Radio Science Meeting (AP-S/INC-USNC-URSI). IEEE, pp. 1177-1178, 2024 IEEE International Symposium on Antennas and Propagation and INC/USNC‐URSI Radio Science Meeting (AP-S/INC-USNC-URSI), Firenze, Italy, 14/07/24. https://doi.org/10.1109/AP-S/INC-USNC-URSI52054.2024.10685974

A Modified 1-Bit Unit-Cell for mmWave RIS Optimized at Extreme Incident Angle. / Goncalves Machado, Gabriel; McKernan, Adrian; Gu, Chao et al.
2024 IEEE International Symposium on Antennas and Propagation and INC/USNC‐URSI Radio Science Meeting (AP-S/INC-USNC-URSI). IEEE, 2024. p. 1177-1178.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - A Modified 1-Bit Unit-Cell for mmWave RIS Optimized at Extreme Incident Angle

AU - Goncalves Machado, Gabriel

AU - McKernan, Adrian

AU - Gu, Chao

AU - Zelenchuk, Dmitry

AU - Saikia, Mondeep

AU - Yurduseven, Okan

AU - Cotton, Simon

AU - Abbasi, Muhammad Ali Babar

PY - 2024/9/30

Y1 - 2024/9/30

N2 - This paper presents a modified wideband reflective unit-cell for Reconfigurable Intelligent Surface (RIS) operating at millimeter-wave (mmWave) n257 band. The unit cell is specifically optimized at extreme incident angles and utilizes dual-polarization reflection with p-i-n diodes for a 1-bit RIS control. The design exhibits superior reflective phase difference close to 180° across most of the 3 GHz bandwidth (26.50-29.45 GHz) and reflects over 74% of the energy even at extreme angle of incidence as high as 70° from the RIS boresight. The enhanced reflectivity minimizes losses, and precise phase control improves beam pointing accuracy crucial for low-complexity 1-bit RIS. Full-wave electromagnetic simulations confirm effective performance. The unit cell is compared with the current state-of-the-art unit cells, in terms of bandwidth, polarization, phase accuracy and operation in extreme angles of incidence.

AB - This paper presents a modified wideband reflective unit-cell for Reconfigurable Intelligent Surface (RIS) operating at millimeter-wave (mmWave) n257 band. The unit cell is specifically optimized at extreme incident angles and utilizes dual-polarization reflection with p-i-n diodes for a 1-bit RIS control. The design exhibits superior reflective phase difference close to 180° across most of the 3 GHz bandwidth (26.50-29.45 GHz) and reflects over 74% of the energy even at extreme angle of incidence as high as 70° from the RIS boresight. The enhanced reflectivity minimizes losses, and precise phase control improves beam pointing accuracy crucial for low-complexity 1-bit RIS. Full-wave electromagnetic simulations confirm effective performance. The unit cell is compared with the current state-of-the-art unit cells, in terms of bandwidth, polarization, phase accuracy and operation in extreme angles of incidence.

KW - modified 1-bit unit-cell

KW - mmWave RIS optimized

KW - extreme incident angle

KW - reconfigurable intelligent surface

U2 - 10.1109/AP-S/INC-USNC-URSI52054.2024.10685974

DO - 10.1109/AP-S/INC-USNC-URSI52054.2024.10685974

M3 - Conference contribution

SN - 979-8-3503-6991-5

SP - 1177

EP - 1178

BT - 2024 IEEE International Symposium on Antennas and Propagation and INC/USNC‐URSI Radio Science Meeting (AP-S/INC-USNC-URSI)

PB - IEEE

T2 - 2024 IEEE International Symposium on Antennas and Propagation and INC/USNC‐URSI Radio Science Meeting (AP-S/INC-USNC-URSI)

Y2 - 14 July 2024 through 19 July 2024

ER -

Goncalves Machado G, McKernan A, Gu C, Zelenchuk D, Saikia M, Yurduseven O et al. A Modified 1-Bit Unit-Cell for mmWave RIS Optimized at Extreme Incident Angle. In 2024 IEEE International Symposium on Antennas and Propagation and INC/USNC‐URSI Radio Science Meeting (AP-S/INC-USNC-URSI). IEEE. 2024. p. 1177-1178 Epub 2024 Sept 30. doi: 10.1109/AP-S/INC-USNC-URSI52054.2024.10685974

A Modified 1-Bit Unit-Cell for mmWave RIS Optimized at Extreme Incident Angle

Abstract

Publication series

Conference

UN SDGs

Keywords

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