Optimized radiation control of electromagnetic band-gap resonator antennas using single-layer near-zero refractive index metasurface

Mohammad Nasrat Zaqumi; Fatima Ghulam Kakepoto; Syed Muzahir Abbas; Mohsen Asadnia; Subhas Mukhopadhyay

doi:10.1109/AP-S/CNC-USNC-URSI55537.2025.11265975

Optimized radiation control of electromagnetic band-gap resonator antennas using single-layer near-zero refractive index metasurface

Mohammad Nasrat Zaqumi, Fatima Ghulam Kakepoto, Syed Muzahir Abbas, Mohsen Asadnia, Subhas Mukhopadhyay

School of Engineering

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

Abstract

This study explores the integration of a near-zero refractive index (NZRI) metasurface to enhance the performance of an electromagnetic band-gap (EBG) resonator antenna, with a specific emphasis on improving radiation directivity in the main lobe direction. A single-unit-cell split-ring resonator is designed to achieve a homogeneous NZRI at an operational frequency of 11 GHz. The engineered refractive index, approaching zero, facilitates precise phase alignment and effective radiation focusing, optimizing the EBG resonator antenna's performance. Numerical simulations reveal a significant enhancement in directivity, achieving a peak value of approximately 17 dBi, alongside an improved aperture efficiency of 29%. These results underscore the potential of NZRI metasurfaces in advancing high-directivity antenna designs, positioning them as promising solutions for next-generation electromagnetic systems and applications requiring focused and efficient radiation.

Original language	English
Title of host publication	2025 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting (AP-S/CNC-USNC-URSI)
Subtitle of host publication	proceedings
Place of Publication	Piscataway, NJ
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
Pages	2001-2004
Number of pages	4
ISBN (Electronic)	9798331523671
ISBN (Print)	9798331523688
DOIs	https://doi.org/10.1109/AP-S/CNC-USNC-URSI55537.2025.11265975
Publication status	Published - 2025
Event	2025 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, AP-S/CNC-USNC-URSI 2025 - Ottawa, Canada Duration: 13 Jul 2025 → 18 Jul 2025

Publication series

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

Conference

Conference	2025 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, AP-S/CNC-USNC-URSI 2025
Country/Territory	Canada
City	Ottawa
Period	13/07/25 → 18/07/25

Keywords

near-zero refractive index (NZRI)
metasurface
electromagnetic-band gap (EBG) resonator antenna
peak directivity
near-field phase distribution

Access to Document

10.1109/AP-S/CNC-USNC-URSI55537.2025.11265975

Cite this

Zaqumi, M. N., Kakepoto, F. G., Abbas, S. M., Asadnia, M., & Mukhopadhyay, S. (2025). Optimized radiation control of electromagnetic band-gap resonator antennas using single-layer near-zero refractive index metasurface. In 2025 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting (AP-S/CNC-USNC-URSI): proceedings (pp. 2001-2004). Institute of Electrical and Electronics Engineers (IEEE). https://doi.org/10.1109/AP-S/CNC-USNC-URSI55537.2025.11265975

Zaqumi, Mohammad Nasrat ; Kakepoto, Fatima Ghulam ; Abbas, Syed Muzahir et al. / Optimized radiation control of electromagnetic band-gap resonator antennas using single-layer near-zero refractive index metasurface. 2025 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting (AP-S/CNC-USNC-URSI): proceedings. Piscataway, NJ : Institute of Electrical and Electronics Engineers (IEEE), 2025. pp. 2001-2004

@inproceedings{a881aa4be446443b9e3354f4b5a52675,

title = "Optimized radiation control of electromagnetic band-gap resonator antennas using single-layer near-zero refractive index metasurface",

abstract = "This study explores the integration of a near-zero refractive index (NZRI) metasurface to enhance the performance of an electromagnetic band-gap (EBG) resonator antenna, with a specific emphasis on improving radiation directivity in the main lobe direction. A single-unit-cell split-ring resonator is designed to achieve a homogeneous NZRI at an operational frequency of 11 GHz. The engineered refractive index, approaching zero, facilitates precise phase alignment and effective radiation focusing, optimizing the EBG resonator antenna's performance. Numerical simulations reveal a significant enhancement in directivity, achieving a peak value of approximately 17 dBi, alongside an improved aperture efficiency of 29\%. These results underscore the potential of NZRI metasurfaces in advancing high-directivity antenna designs, positioning them as promising solutions for next-generation electromagnetic systems and applications requiring focused and efficient radiation.",

keywords = "near-zero refractive index (NZRI), metasurface, electromagnetic-band gap (EBG) resonator antenna, peak directivity, near-field phase distribution",

author = "Zaqumi, \{Mohammad Nasrat\} and Kakepoto, \{Fatima Ghulam\} and Abbas, \{Syed Muzahir\} and Mohsen Asadnia and Subhas Mukhopadhyay",

year = "2025",

doi = "10.1109/AP-S/CNC-USNC-URSI55537.2025.11265975",

language = "English",

isbn = "9798331523688",

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

pages = "2001--2004",

booktitle = "2025 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting (AP-S/CNC-USNC-URSI)",

address = "United States",

note = "2025 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, AP-S/CNC-USNC-URSI 2025 ; Conference date: 13-07-2025 Through 18-07-2025",

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Zaqumi, MN, Kakepoto, FG, Abbas, SM , Asadnia, M & Mukhopadhyay, S 2025, Optimized radiation control of electromagnetic band-gap resonator antennas using single-layer near-zero refractive index metasurface. in 2025 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting (AP-S/CNC-USNC-URSI): proceedings. Institute of Electrical and Electronics Engineers (IEEE), Piscataway, NJ, pp. 2001-2004, 2025 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, AP-S/CNC-USNC-URSI 2025, Ottawa, Canada, 13/07/25. https://doi.org/10.1109/AP-S/CNC-USNC-URSI55537.2025.11265975

Optimized radiation control of electromagnetic band-gap resonator antennas using single-layer near-zero refractive index metasurface. / Zaqumi, Mohammad Nasrat; Kakepoto, Fatima Ghulam; Abbas, Syed Muzahir et al.
2025 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting (AP-S/CNC-USNC-URSI): proceedings. Piscataway, NJ: Institute of Electrical and Electronics Engineers (IEEE), 2025. p. 2001-2004.

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

TY - GEN

T1 - Optimized radiation control of electromagnetic band-gap resonator antennas using single-layer near-zero refractive index metasurface

AU - Zaqumi, Mohammad Nasrat

AU - Kakepoto, Fatima Ghulam

AU - Abbas, Syed Muzahir

AU - Asadnia, Mohsen

AU - Mukhopadhyay, Subhas

PY - 2025

Y1 - 2025

N2 - This study explores the integration of a near-zero refractive index (NZRI) metasurface to enhance the performance of an electromagnetic band-gap (EBG) resonator antenna, with a specific emphasis on improving radiation directivity in the main lobe direction. A single-unit-cell split-ring resonator is designed to achieve a homogeneous NZRI at an operational frequency of 11 GHz. The engineered refractive index, approaching zero, facilitates precise phase alignment and effective radiation focusing, optimizing the EBG resonator antenna's performance. Numerical simulations reveal a significant enhancement in directivity, achieving a peak value of approximately 17 dBi, alongside an improved aperture efficiency of 29%. These results underscore the potential of NZRI metasurfaces in advancing high-directivity antenna designs, positioning them as promising solutions for next-generation electromagnetic systems and applications requiring focused and efficient radiation.

AB - This study explores the integration of a near-zero refractive index (NZRI) metasurface to enhance the performance of an electromagnetic band-gap (EBG) resonator antenna, with a specific emphasis on improving radiation directivity in the main lobe direction. A single-unit-cell split-ring resonator is designed to achieve a homogeneous NZRI at an operational frequency of 11 GHz. The engineered refractive index, approaching zero, facilitates precise phase alignment and effective radiation focusing, optimizing the EBG resonator antenna's performance. Numerical simulations reveal a significant enhancement in directivity, achieving a peak value of approximately 17 dBi, alongside an improved aperture efficiency of 29%. These results underscore the potential of NZRI metasurfaces in advancing high-directivity antenna designs, positioning them as promising solutions for next-generation electromagnetic systems and applications requiring focused and efficient radiation.

KW - near-zero refractive index (NZRI)

KW - metasurface

KW - electromagnetic-band gap (EBG) resonator antenna

KW - peak directivity

KW - near-field phase distribution

UR - https://www.scopus.com/pages/publications/105030827336

U2 - 10.1109/AP-S/CNC-USNC-URSI55537.2025.11265975

DO - 10.1109/AP-S/CNC-USNC-URSI55537.2025.11265975

M3 - Conference proceeding contribution

AN - SCOPUS:105030827336

SN - 9798331523688

SP - 2001

EP - 2004

BT - 2025 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting (AP-S/CNC-USNC-URSI)

PB - Institute of Electrical and Electronics Engineers (IEEE)

CY - Piscataway, NJ

T2 - 2025 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, AP-S/CNC-USNC-URSI 2025

Y2 - 13 July 2025 through 18 July 2025

ER -

Zaqumi MN, Kakepoto FG, Abbas SM , Asadnia M , Mukhopadhyay S. Optimized radiation control of electromagnetic band-gap resonator antennas using single-layer near-zero refractive index metasurface. In 2025 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting (AP-S/CNC-USNC-URSI): proceedings. Piscataway, NJ: Institute of Electrical and Electronics Engineers (IEEE). 2025. p. 2001-2004 doi: 10.1109/AP-S/CNC-USNC-URSI55537.2025.11265975

Optimized radiation control of electromagnetic band-gap resonator antennas using single-layer near-zero refractive index metasurface

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Keywords

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