S.G. Vesnin1, S.V. Agasieva2, М.К. Sedankin3, V.Yu. Leushin4, I.A. Sidorov5, I.О. Porokhov6, G.А. Gudkov7

1–4,6 Peoples’ Friendship University of Russia (Moscow, Russia)

5,7 Bauman Moscow State Technological University (Moscow, Russia)

To measure the self-radiation of brain tissues in the microwave range, it is necessary to develop antennas that have good contact with the tissues of the head and a high measurement depth, since the skull bones, skin, fat layer and muscles are located between the brain tissues and the antenna aperture. Conformal flexible printed antennas with a high measurement depth can solve this problem and allow the development of medical devices for measuring the self- radiation of the brain using microwave radiometry.

Purpose – to consider the possibility of creating conformal flexible printed antennas with a high measurement depth for conducting brain examination using microwave radiometry.

Mathematical modeling of the self-electromagnetic radiation of brain tissues was carried out based on the numerical solution of the Maxwell equation. The efficiency of the antenna, which characterizes the share of power that enters the antenna from the brain tissues, in relation to the total power that enters the antenna, is estimated. It is shown that the considered flexible antenna has a significantly higher efficiency compared to the well-known log-spiral antenna.

The conducted studies have demonstrated the possibility of creating flexible conformal antennas with a high measurement depth, which allow receiving a noise signal from brain tissues. This opens up the possibility of creating medical devices for measuring the intrinsic electromagnetic radiation of brain tissues, for monitoring brain temperature, and for functional diagnostics of various brain diseases.

Vesnin S.G., Agasieva S.V., Sedankin M.K., Leushin V.Yu., Sidorov I.A., Porokhov I.O., Gudkov G.A. Construction of flexible conformal antennas for measuring of the brain’s self-radiation. Nanotechnology: the development, application – XXI Century. 2022. V. 14.
№ 4. Р. 5-18. DOI: https://doi.org/10.18127/j22250980-202204-01 (In Russian).

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