G.F. Zargano1, A.V. Kharlanov2

1 Southern Federal University (Rostov-on-Don, Russia)

2 Volgograd State Technical University (Volgograd, Russia)

1 gfzargano@sfedu.ru, 2 harlanov_av@mail.ru

Recently, the task of finding sources of microwave radiation that carry information not only about the sources, but also about the environment has become increasingly urgent. Sources of particular interest are those of organic origin. This can be useful in medical diagnostics. Also of great interest are the issues of interaction of living organisms and their components through electromagnetic and other types of waves. Oscillating thin films can be considered one of such sources. A phospholipid layer can be considered as such a film. When placed in water, they form a spherical bilayer. The use of such a film as an object of research is relevant, since the phospholipid bilayer, despite the fact that it can be created artificially, is also the basis of the membranes of most biological cells. Such thin films usually exist in groups, so the purpose of this article is to calculate the fields generated by the oscillations of groups of such films. Charges of different signs are located on the inner and outer sides of the film and the thickness of the film changes during oscillations. If an elementary pad is mentally cut out on the surface of the film, then such an object will be an electric dipole, the moment of which will change in time with the frequency of acoustic oscillations. By adding up first the fields created by each elementary dipole on the surface of the film, and then the fields created by each film, you can get the field generated by their group. The higher the mode of acoustic oscillations of thin films, the faster the amplitude of fluctuations of the electric field intensity decreased at a distance. For organic thin films, the process of their depolarization under the action of an external stimulus is known. When modeling this process, there was a dip in the amplitude of oscillations of some components of the electric field strength and an increase in other components, which also depend on the distance to the observation point. Since the parameters of the generated signal depend on the state of the thin film and its environment, measurements of this signal can be useful for determining the parameters of media.

Zargano G.F., Kharlanov A.V. Calculation of electromagnetic fields generated by a group of oscillating charged thin films. Electromagnetic waves and electronic systems. 2025. V. 30. № 2. P. 36−42. DOI: https://doi.org/10.18127/j15604128-202502-04 (in Russian)

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