Electromagnetic study of the breast for biomedical applications

Slimi, Marwa; Mendes, Paulo; Jmai, Bassem; Gharsallah, Ali

doi:10.1109/atsip.2018.8364478

Cited by 2 publications

(2 citation statements)

References 8 publications

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“…When using radiofrequency signals for biomedical applications, the specific absorption rate ( SAR ), a measure of the energy absorbed per unit mass of tissue (W/kg) by the human body, must be kept under predefined levels to ensure patient safety. The SAR can be calculated from the following physical quantities: the electric field E , the current density J , or the temperature rise dT/dt in the tissues, as demonstrated in Equations (8)–(10) [ 20 ].

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Section: Antenna Designmentioning

confidence: 99%

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Metamaterial Vivaldi Antenna Array for Breast Cancer Detection

Slimi

Jmai

Dinis

et al. 2022

Sensors

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The objective of this work is the design and validation of a directional Vivaldi antenna to detect tumor cells’ electromagnetic waves with a frequency of around 5 GHz. The proposed antenna is 33% smaller than a traditional Vivaldi antenna due to the use of metamaterials in its design. It has an excellent return loss of 25 dB at 5 GHz and adequate radiation characteristics as its gain is 6.2 dB at 5 GHz. The unit cell size of the proposed metamaterial is 0.058λ × 0.054λ at the operation frequency of 5 GHz. The proposed antenna was designed and optimized in CST microwave software, and the measured and simulated results were in good agreement. The experimental study demonstrates that an array composed with the presented antennas can detect the existence of tumors in a liquid breast phantom with positional accuracy through the analysis of the minimum amplitude of Sii.

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Section: Antenna Designmentioning

confidence: 99%

“…The breast phantom was based on the databases of tissue electrical properties, from the IT’IS Foundation [ 22 ], for the different layers. The breast model uses geometric properties of the “model I” from the paper [ 20 ]: the skin is 2 mm, the fat is 8 mm, the blood is 2 mm is and the gland is 116 mm.…”

Section: Antenna Designmentioning

confidence: 99%