Ultra-Compact Flexible Intraocular Antenna for Implantable Retinal Prosthesis Applications

Md Ahsan Halimi; Ibraheem Al-Naib; Abdulrahman S.M. Alqadami; Hussein Attia

doi:10.1109/AP-S/CNC-USNC-URSI55537.2025.11266149

Ultra-Compact Flexible Intraocular Antenna for Implantable Retinal Prosthesis Applications

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

Abstract

This paper introduces an ultra-compact intraocular antenna for efficient visual data and power reception inside the human eyes. The antenna is optimized to meet the stringent size and performance constraints. Notably, the proposed antenna is exceptionally compact, with a volume of just 0.35 mm³, measuring 1.5 mm radius, and only 0.05 mm height. This miniaturization makes it suitable for integration into small-scale biomedical implants inside the eyeball, where space is critical. The proposed antenna covers two industrial, scientific, and medical (ISM) bands of 915 MHz and 2.45 GHz. The second band has sufficient bandwidth to cover the Medical Body Area Network System (MBANS) band. This compact structure is achieved by strategically utilizing shorting pins, which effectively modify the current distribution within the antenna. The antenna attains a peak gain of -30.15 dBi at 0.9 GHz and -30.33 dBi at 2.45 GHz. This achievement is particularly noteworthy, highlighting the antenna's suitability for retinal prosthesis application.

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 2025 - Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	2201-2203
Number of pages	3
ISBN (Electronic)	9798331523671
DOIs	https://doi.org/10.1109/AP-S/CNC-USNC-URSI55537.2025.11266149
State	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	IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
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

Bibliographical note

Publisher Copyright:
© 2025 IEEE.

ASJC Scopus subject areas

Electrical and Electronic Engineering

Access to Document

10.1109/AP-S/CNC-USNC-URSI55537.2025.11266149

Cite this

Halimi, M. A., Al-Naib, I., Alqadami, A. S. M., & Attia, H. (2025). Ultra-Compact Flexible Intraocular Antenna for Implantable Retinal Prosthesis Applications. In 2025 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, AP-S/CNC-USNC-URSI 2025 - Proceedings (pp. 2201-2203). (IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/AP-S/CNC-USNC-URSI55537.2025.11266149

Halimi, Md Ahsan ; Al-Naib, Ibraheem ; Alqadami, Abdulrahman S.M. et al. / Ultra-Compact Flexible Intraocular Antenna for Implantable Retinal Prosthesis Applications. 2025 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, AP-S/CNC-USNC-URSI 2025 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2025. pp. 2201-2203 (IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)).

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abstract = "This paper introduces an ultra-compact intraocular antenna for efficient visual data and power reception inside the human eyes. The antenna is optimized to meet the stringent size and performance constraints. Notably, the proposed antenna is exceptionally compact, with a volume of just 0.35 mm3, measuring 1.5 mm radius, and only 0.05 mm height. This miniaturization makes it suitable for integration into small-scale biomedical implants inside the eyeball, where space is critical. The proposed antenna covers two industrial, scientific, and medical (ISM) bands of 915 MHz and 2.45 GHz. The second band has sufficient bandwidth to cover the Medical Body Area Network System (MBANS) band. This compact structure is achieved by strategically utilizing shorting pins, which effectively modify the current distribution within the antenna. The antenna attains a peak gain of -30.15 dBi at 0.9 GHz and -30.33 dBi at 2.45 GHz. This achievement is particularly noteworthy, highlighting the antenna's suitability for retinal prosthesis application.",

author = "Halimi, \{Md Ahsan\} and Ibraheem Al-Naib and Alqadami, \{Abdulrahman S.M.\} and Hussein Attia",

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Halimi, MA , Al-Naib, I , Alqadami, ASM & Attia, H 2025, Ultra-Compact Flexible Intraocular Antenna for Implantable Retinal Prosthesis Applications. in 2025 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, AP-S/CNC-USNC-URSI 2025 - Proceedings. IEEE Antennas and Propagation Society, AP-S International Symposium (Digest), Institute of Electrical and Electronics Engineers Inc., pp. 2201-2203, 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-URSI55537.2025.11266149

Ultra-Compact Flexible Intraocular Antenna for Implantable Retinal Prosthesis Applications. / Halimi, Md Ahsan ; Al-Naib, Ibraheem ; Alqadami, Abdulrahman S.M. et al.
2025 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, AP-S/CNC-USNC-URSI 2025 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2025. p. 2201-2203 (IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)).

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

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T1 - Ultra-Compact Flexible Intraocular Antenna for Implantable Retinal Prosthesis Applications

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AU - Al-Naib, Ibraheem

AU - Alqadami, Abdulrahman S.M.

AU - Attia, Hussein

PY - 2025

Y1 - 2025

N2 - This paper introduces an ultra-compact intraocular antenna for efficient visual data and power reception inside the human eyes. The antenna is optimized to meet the stringent size and performance constraints. Notably, the proposed antenna is exceptionally compact, with a volume of just 0.35 mm3, measuring 1.5 mm radius, and only 0.05 mm height. This miniaturization makes it suitable for integration into small-scale biomedical implants inside the eyeball, where space is critical. The proposed antenna covers two industrial, scientific, and medical (ISM) bands of 915 MHz and 2.45 GHz. The second band has sufficient bandwidth to cover the Medical Body Area Network System (MBANS) band. This compact structure is achieved by strategically utilizing shorting pins, which effectively modify the current distribution within the antenna. The antenna attains a peak gain of -30.15 dBi at 0.9 GHz and -30.33 dBi at 2.45 GHz. This achievement is particularly noteworthy, highlighting the antenna's suitability for retinal prosthesis application.

AB - This paper introduces an ultra-compact intraocular antenna for efficient visual data and power reception inside the human eyes. The antenna is optimized to meet the stringent size and performance constraints. Notably, the proposed antenna is exceptionally compact, with a volume of just 0.35 mm3, measuring 1.5 mm radius, and only 0.05 mm height. This miniaturization makes it suitable for integration into small-scale biomedical implants inside the eyeball, where space is critical. The proposed antenna covers two industrial, scientific, and medical (ISM) bands of 915 MHz and 2.45 GHz. The second band has sufficient bandwidth to cover the Medical Body Area Network System (MBANS) band. This compact structure is achieved by strategically utilizing shorting pins, which effectively modify the current distribution within the antenna. The antenna attains a peak gain of -30.15 dBi at 0.9 GHz and -30.33 dBi at 2.45 GHz. This achievement is particularly noteworthy, highlighting the antenna's suitability for retinal prosthesis application.

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M3 - Conference contribution

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PB - Institute of Electrical and Electronics Engineers Inc.

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Y2 - 13 July 2025 through 18 July 2025

ER -

Halimi MA , Al-Naib I , Alqadami ASM , Attia H. Ultra-Compact Flexible Intraocular Antenna for Implantable Retinal Prosthesis Applications. In 2025 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, AP-S/CNC-USNC-URSI 2025 - Proceedings. Institute of Electrical and Electronics Engineers Inc. 2025. p. 2201-2203. (IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)). doi: 10.1109/AP-S/CNC-USNC-URSI55537.2025.11266149

Ultra-Compact Flexible Intraocular Antenna for Implantable Retinal Prosthesis Applications

Abstract

Publication series

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Bibliographical note

ASJC Scopus subject areas

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