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Feasibility Study of Enhancing Microwave Brain Imaging Using Metamaterials

Research output: Contribution to journalArticle

Original languageEnglish
Article number5472
Number of pages17
JournalSENSORS
Volume19
Issue number24
Early online date12 Dec 2019
DOIs
Publication statusPublished - 12 Dec 2019

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King's Authors

Abstract

We present an approach to enhance microwave brain imaging with an innovative metamaterial (MM) planar design based on a cross-shaped split-ring resonator (SRR-CS). The proposed metasurface is incorporated in different setups, and its interaction with EM waves is studied both experimentally and by using CST Microwave Studio® and is compared to a “no MM” case scenario. We show that the MM can enhance the penetration of the transmitted signals into the human head when placed in contact with skin tissue, acting as an impedance-matching layer. In addition, we show that the MM can improve the transceivers’ ability to detect useful “weak” signals when incorporated in a headband scanner for brain imaging by increasing the signal difference from a blood-like dielectric target introduced into the brain volume. Our results suggest that the proposed MM film can be a powerful hardware advance towards the development of scanners for brain haemorrhage detection and monitoring.

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