Email this article Antenna applicator for medical diagnostics in a multilayer brain tissue
- Authors: Sadykov A.R.1
-
Affiliations:
- Kazan National Research Technical University named after A.N.Tupolev-KAI
- Issue: No 3 (2024)
- Pages: 25-34
- Section: Telecommunication and radio engineering
- URL: https://journals.rcsi.science/2306-2819/article/view/276332
- DOI: https://doi.org/10.25686/2306-2819.2024.3.25
- EDN: https://elibrary.ru/CYOYLQ
- ID: 276332
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Abstract
Introduction. Radiothermography is a promising medical diagnostic technique that detects the body's natural radio emissions. Variations in physiological properties, such as temperature and electrophysical characteristics, alter the noise temperature of tissues, signaling potential abnormalities. The efficiency of microwave thermometry increases with focusing, which can be achieved using antenna arrays. However, in the context of human diagnostics, the compactness of array elements is critical due to the limited space within the body.
This study aims at assessing the performance of a developed antenna applicator for use in a multilayer model of brain tissue and proving its functionality in experiments. Electrodynamic modeling was performed using CST STUDIO, a software suite for designing, simulating, and optimizing 3D electromagnetic systems. To evaluate the antenna's performance, a tissue phantom was created to replicate the dielectric properties of real human tissues.
Findings. A compact antenna-sensor for contact radiothermometry was developed, operating at a frequency of 3.85 GHz with a 50 MHz bandwidth. The design addresses the challenge of fitting array elements into a small volume. The experimental results correlated with the electrodynamic model, confirming the functionality of the antenna applicator. Its performance was optimized for a multilayer structure of brain tissue using a below-cutoff waveguide design.
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About the authors
Adel R. Sadykov
Kazan National Research Technical University named after A.N.Tupolev-KAI
Author for correspondence.
Email: pro3452000@gmail.com
SPIN-code: 7038-4180
PhD student, assistant at the Department for Radio-Electronic and Telecommunication Systems. Research interests – microwave thermal imaging, body screening, internal tissue analysis, brain research, and compact, flush-mounted weakly directional antennas. The author of 30 scientific publications.
Russian Federation, 10, K. Marx st., Kazan, 420111References
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