Anti-Reflection Coating Effects on Beam Performance of Spiral-Fed Silicon Lens Antennas for THz Communication

A. K. M. Zakir Hossain; Mohamad Zoinol Abidin Bin Abd. Aziz; S. M. Kayser Azam; Mohd. Khanapiah Bin Nor; Muhammad Ibn Ibrahimy; Jasim Uddin

doi:10.1109/rfm67034.2025.11284365

Anti-Reflection Coating Effects on Beam Performance of Spiral-Fed Silicon Lens Antennas for THz Communication

A. K. M. Zakir Hossain
, Mohamad Zoinol Abidin Bin Abd. Aziz
, S. M. Kayser Azam
, Mohd. Khanapiah Bin Nor
, Muhammad Ibn Ibrahimy
, Jasim Uddin

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

Abstract

This paper presents a numerical investigation of anti-reflection coating (ARC) effects on the beam performance of a spiral-fed half-hemispherical silicon lens antenna for terahertz (THz) communication up to 3.5 THz. Four single-layer ARC materials - SU-8, PTFE, HDPE, and polystyrene - are compared against the non-coated (NC) case. Key metrics including directivity, sidelobe level (SLL), back lobe level (BLL), and front-to-back ratio (FBR) are investigated. Results show SU-8 achieving the highest performance, with directivity of 26.6 dBi, SLL of −17.8 dB, and FBR of 25.32 dB at 3.5 THz. These findings provide valuable design guidelines for optimizing ARC selection in high-performance THz lens antennas for communication and sensing applications

Original language	English
Title of host publication	Conference Proceedings - 10th IEEE International RF and Microwave Conference, RFM 2025
Editors	Noor Asniza Murad
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
Pages	1-4
Number of pages	4
ISBN (Electronic)	9798331585211
ISBN (Print)	9798331585228
DOIs	https://doi.org/10.1109/rfm67034.2025.11284365
Publication status	Published - 16 Dec 2025
Event	10th IEEE International RF and Microwave Conference, RFM 2025 - Penang, Malaysia Duration: 17 Sept 2025 → 19 Sept 2025

Publication series

Name	2025 IEEE International RF and Microwave Conference (RFM)
Publisher	IEEE Computer Society
ISSN (Print)	2472-1549
ISSN (Electronic)	2996-6787

Conference

Conference	10th IEEE International RF and Microwave Conference, RFM 2025
Country/Territory	Malaysia
City	Penang
Period	17/09/25 → 19/09/25

Keywords

anti-reflection coating
beam performance
silicon lens antenna
spiral-fed antenna
terahertz communication

Access to Document

10.1109/rfm67034.2025.11284365

Cite this

Hossain, A. K. M. Z., Bin Abd. Aziz, M. Z. A., Azam, S. M. K., Bin Nor, M. K., Ibn Ibrahimy, M., & Uddin, J. (2025). Anti-Reflection Coating Effects on Beam Performance of Spiral-Fed Silicon Lens Antennas for THz Communication. In N. A. Murad (Ed.), Conference Proceedings - 10th IEEE International RF and Microwave Conference, RFM 2025 (pp. 1-4). (2025 IEEE International RF and Microwave Conference (RFM)). Institute of Electrical and Electronics Engineers (IEEE). https://doi.org/10.1109/rfm67034.2025.11284365

Hossain, A. K. M. Zakir ; Bin Abd. Aziz, Mohamad Zoinol Abidin ; Azam, S. M. Kayser et al. / Anti-Reflection Coating Effects on Beam Performance of Spiral-Fed Silicon Lens Antennas for THz Communication. Conference Proceedings - 10th IEEE International RF and Microwave Conference, RFM 2025. editor / Noor Asniza Murad. Institute of Electrical and Electronics Engineers (IEEE), 2025. pp. 1-4 (2025 IEEE International RF and Microwave Conference (RFM)).

@inproceedings{25b31d4451104bdba472f39416123b0b,

title = "Anti-Reflection Coating Effects on Beam Performance of Spiral-Fed Silicon Lens Antennas for THz Communication",

abstract = "This paper presents a numerical investigation of anti-reflection coating (ARC) effects on the beam performance of a spiral-fed half-hemispherical silicon lens antenna for terahertz (THz) communication up to 3.5 THz. Four single-layer ARC materials - SU-8, PTFE, HDPE, and polystyrene - are compared against the non-coated (NC) case. Key metrics including directivity, sidelobe level (SLL), back lobe level (BLL), and front-to-back ratio (FBR) are investigated. Results show SU-8 achieving the highest performance, with directivity of 26.6 dBi, SLL of −17.8 dB, and FBR of 25.32 dB at 3.5 THz. These findings provide valuable design guidelines for optimizing ARC selection in high-performance THz lens antennas for communication and sensing applications",

keywords = "anti-reflection coating, beam performance, silicon lens antenna, spiral-fed antenna, terahertz communication",

author = "Hossain, \{A. K. M. Zakir\} and \{Bin Abd. Aziz\}, \{Mohamad Zoinol Abidin\} and Azam, \{S. M. Kayser\} and \{Bin Nor\}, \{Mohd. Khanapiah\} and \{Ibn Ibrahimy\}, Muhammad and Jasim Uddin",

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year = "2025",

month = dec,

day = "16",

doi = "10.1109/rfm67034.2025.11284365",

language = "English",

isbn = "9798331585228",

series = "2025 IEEE International RF and Microwave Conference (RFM)",

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

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Hossain, AKMZ, Bin Abd. Aziz, MZA, Azam, SMK, Bin Nor, MK, Ibn Ibrahimy, M & Uddin, J 2025, Anti-Reflection Coating Effects on Beam Performance of Spiral-Fed Silicon Lens Antennas for THz Communication. in NA Murad (ed.), Conference Proceedings - 10th IEEE International RF and Microwave Conference, RFM 2025. 2025 IEEE International RF and Microwave Conference (RFM), Institute of Electrical and Electronics Engineers (IEEE), pp. 1-4, 10th IEEE International RF and Microwave Conference, RFM 2025, Penang, Malaysia, 17/09/25. https://doi.org/10.1109/rfm67034.2025.11284365

Anti-Reflection Coating Effects on Beam Performance of Spiral-Fed Silicon Lens Antennas for THz Communication. / Hossain, A. K. M. Zakir; Bin Abd. Aziz, Mohamad Zoinol Abidin; Azam, S. M. Kayser et al.
Conference Proceedings - 10th IEEE International RF and Microwave Conference, RFM 2025. ed. / Noor Asniza Murad. Institute of Electrical and Electronics Engineers (IEEE), 2025. p. 1-4 (2025 IEEE International RF and Microwave Conference (RFM)).

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

TY - GEN

T1 - Anti-Reflection Coating Effects on Beam Performance of Spiral-Fed Silicon Lens Antennas for THz Communication

AU - Hossain, A. K. M. Zakir

AU - Bin Abd. Aziz, Mohamad Zoinol Abidin

AU - Azam, S. M. Kayser

AU - Bin Nor, Mohd. Khanapiah

AU - Ibn Ibrahimy, Muhammad

AU - Uddin, Jasim

PY - 2025/12/16

Y1 - 2025/12/16

N2 - This paper presents a numerical investigation of anti-reflection coating (ARC) effects on the beam performance of a spiral-fed half-hemispherical silicon lens antenna for terahertz (THz) communication up to 3.5 THz. Four single-layer ARC materials - SU-8, PTFE, HDPE, and polystyrene - are compared against the non-coated (NC) case. Key metrics including directivity, sidelobe level (SLL), back lobe level (BLL), and front-to-back ratio (FBR) are investigated. Results show SU-8 achieving the highest performance, with directivity of 26.6 dBi, SLL of −17.8 dB, and FBR of 25.32 dB at 3.5 THz. These findings provide valuable design guidelines for optimizing ARC selection in high-performance THz lens antennas for communication and sensing applications

AB - This paper presents a numerical investigation of anti-reflection coating (ARC) effects on the beam performance of a spiral-fed half-hemispherical silicon lens antenna for terahertz (THz) communication up to 3.5 THz. Four single-layer ARC materials - SU-8, PTFE, HDPE, and polystyrene - are compared against the non-coated (NC) case. Key metrics including directivity, sidelobe level (SLL), back lobe level (BLL), and front-to-back ratio (FBR) are investigated. Results show SU-8 achieving the highest performance, with directivity of 26.6 dBi, SLL of −17.8 dB, and FBR of 25.32 dB at 3.5 THz. These findings provide valuable design guidelines for optimizing ARC selection in high-performance THz lens antennas for communication and sensing applications

KW - anti-reflection coating

KW - beam performance

KW - silicon lens antenna

KW - spiral-fed antenna

KW - terahertz communication

UR - https://www.scopus.com/pages/publications/105031755260

U2 - 10.1109/rfm67034.2025.11284365

DO - 10.1109/rfm67034.2025.11284365

M3 - Conference contribution

SN - 9798331585228

T3 - 2025 IEEE International RF and Microwave Conference (RFM)

SP - 1

EP - 4

BT - Conference Proceedings - 10th IEEE International RF and Microwave Conference, RFM 2025

A2 - Murad, Noor Asniza

PB - Institute of Electrical and Electronics Engineers (IEEE)

T2 - 10th IEEE International RF and Microwave Conference, RFM 2025

Y2 - 17 September 2025 through 19 September 2025

ER -

Hossain AKMZ, Bin Abd. Aziz MZA, Azam SMK, Bin Nor MK, Ibn Ibrahimy M, Uddin J. Anti-Reflection Coating Effects on Beam Performance of Spiral-Fed Silicon Lens Antennas for THz Communication. In Murad NA, editor, Conference Proceedings - 10th IEEE International RF and Microwave Conference, RFM 2025. Institute of Electrical and Electronics Engineers (IEEE). 2025. p. 1-4. (2025 IEEE International RF and Microwave Conference (RFM)). doi: 10.1109/rfm67034.2025.11284365

Anti-Reflection Coating Effects on Beam Performance of Spiral-Fed Silicon Lens Antennas for THz Communication

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