Graphene-based terahertz antenna with enhanced backscatter sensitivity for early breast cancer localization

Al Gburi, Ahmed Jamal Abdullah and Gupta, Anupma and Bansal, Shonak and Kumar, Vipan and Garg, Sonu Bala (2025) Graphene-based terahertz antenna with enhanced backscatter sensitivity for early breast cancer localization. Nano Trends, 12. pp. 1-12. ISSN 2666-9781

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Abstract

Terahertz (THz) imaging is emerging as a promising technique for early breast cancer detection due to its high sensitivity to tissue property variations. This paper presents a compact graphene-based patch antenna designed for broadband operation, occupying only 18 µm × 23 µm. The antenna achieves a wide bandwidth of 5.9 THz (3.1–9 THz) and a peak gain of 6.47 dBi without tissue loading, enabled by a full ground plane that ensures unidirectional radiation. To evaluate its performance for cancer detection, numerical breast phantoms with and without tumors were modeled. A significant S11 deviation of up to 16 dB was observed between healthy and cancerous tissue, indicating strong sensitivity to dielectric changes. Additionally, tumor localization was achieved by analyzing the spatial variation of the backscattered signal along the X and Y axes. The results confirm that the proposed antenna can detect minute tumors (∼10 µm radius) and effectively differentiate between malignant and healthy tissues, highlighting its potential for early-stage breast cancer screening.

Item Type:	Article
Uncontrolled Keywords:	Backscattered signal, Breast tumour detection, Graphene-based patch, Sensitivity, Terahertz imaging
Divisions:	Faculty Of Electronics And Computer Technology And Engineering
Depositing User:	Sabariah Ismail
Date Deposited:	30 Dec 2025 07:22
Last Modified:	30 Dec 2025 07:22
URI:	http://eprints.utem.edu.my/id/eprint/29362
Statistic Details:	View Download Statistic

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