EXPERIMENTAL STUDY OF THE EM FIELD RADIATION CHARACTERISTICS IN THE LABORATORY ENVIRONMENT

2025;
: 105-113
Received: September 03, 2025
Revised: September 11, 2025
Accepted: September 15, 2025
1
Lviv Polytechnic National University
2
Tbilisi State University, Georgia

In process of conducting experimental work related to the use of sources of electromagnetic (EM) radiation in the MHz and GHz frequency ranges, the question arises of assessing the impact of such radiation on the human body, since researchers are exposed to it for a significant period. As a rule, generators of high-frequency radiation in the MHz and lower GHz frequency ranges do not always provide adequate protection for engineering personnel from the effects of the EM fields generated. Therefore, the assessment of the quantitative characteristics of the EM power emitted during the operation of these generators is quite important, since this makes it possible to further determine its impact within the generally accepted parameters of radiofrequency dosimetry. In this work, the quantitative characteristics of the radiation of the SA6 generator, which generates EM radiation in the range up to 6.2 GHz, were measured; the experimental equipment includes a USB-SA44B spectrum analyzer with appropriate software that allows conducting research in a wide range of the lower GHz frequency spectrum.

[1]  N.Kuster N., Q. Balzano, and J. C. Lin, Mobile Communications Safety (Telecommunications Technology & Applications Series). First ed. London: Springer, 1997.

[2] G. J. Hyland. Physics and biology of mobile telephony, Lancet. 2000 Nov 25;356(9244):1833-6. https://doi.org/10.1016/s0140-6736(00)03243-8.

[3] T. Ishihara, K. Yamazaki, A. Araki, at al. Exposure to Radiofrequency Electromagnetic Field in the High-Frequency Band and Cognitive Function in Children and Adolescents: A Literature Reviewю Int. J. Environ. Res. Public Health, 2020; vol. 17, no. 24, # 9179. https://doi.org/10.3390/ijerph17249179.

[4] P. Liang, Z. Li, J. Li, at allю Impacts of complex electromagnetic radiation and low-frequency noise exposure conditions on the cognitive function of operatorsю Front. Public Health, 2023, vol. 11, # 1138118. https://doi.org/10.3389/fpubh.2023.1138118.

[5] International Commission on Non-Ionizing Radiation Protection. Guidelines for limiting exposure to time-varying electric, magnetic, and electromagnetic fields (up to300GHz). Health Phys. 1998; vol. 74, pp. 494–522.

[6] Y. Zhu, F. Gao, X. Yang, et. al. The effect of microwave emission from mobile phones on neuron survival in rat central nervous system. Prog. Electromagn. Res., 2008, vol. 82, pp. 287–98.

[7] R. M. Hepacholi, Low-level exposure to radiofrequency electromagnetic fields: health effects and research needs. Bioelectromagnetics, 1998, vol. 19, pp. 1–19.

[8] R. Nylund, D. Leszczynski. Proteomics analysis of human endothelial cell line EA.hy926 after exposure to GS M900 radiationю Proteomics. 2004, vol. 4, no. 5, pp. 1359–1365. https://doi.org/10.1002/pmic.200300773.

[9] R. Sarimov, L. O. G. Malmgren, E. Markova, at all. Nonthermal GSM microwaves affect chromatin conformation in human lymphocytes similar to heat shock. IEEE Transactions on Plasma Science, 2004, vol. 32, no. 4, pp. 1600-1608. https://doi.org/10.1109/TPS.2004.832613.

[10] M. Buttiglione, L. Roca, E. Montemurno, at all. Radiofrequency radiation (900MHz) induces Egr-1 gene expression and affects cell-cycle control in human neuro blastoma cells. J. Cell Physiol., 2007, vol. 213, no. 3, pp. 759–767. https://doi.org/10.1002/jcp.21146.

[11] Y. M. Moustafa, R. M. Moustafa, A. Belacy, at all. Effects of acute exposure to the radiofrequency fields of cellular phones on plasma lipid peroxide and antioxidase activities in human erythrocytes. J. Pharm. Biomed. Anal., 2001, vol. 26, no. 4, pp. 605–608. https://doi.org/10.1016/s0731-7085(01)00492-7.

[12] K. A Hossmann, D. M. Hermann. Effects of Electromagnetic Radiation of Mobile Phones on the Central Nervous System. Bioelectromagnetics, 2003, vol. 24, pp. 49-62. https://doi.org/10.1002/bem.10068.

[13] J. E. Tattersall, I. R. Scott, S. J. Wood, et al. Effects of low intensity radiofrequency electromagnetic fields on electrical activity in rat hippocampal slices. Brain Res., 2001, vol. 904, no.1, pp. 43–53. https://doi.org/10.1016/s0006-8993(01)02434-9.

[14] R.C. Beason, P. Semm. Responses of neurons to an amplitude modulated microwave stimulus. Neurosci. Lett., 2002, vol. 333, no. 3, pp. 175–178. https://doi.org/10.1016/S0304-3940(02)00903-5.

[15] 5G, 4G, 3G Small Cell Tower Radiation Health Effects Science -https://ehtrust.org/5g-4g-3g-small-cell-tower-radiation-health-effects-science/

[16] G Betta, D Capriglione, G Cerro, et al. Measurements of Human Exposure to EMF from 4G systems: some experimental issues in urban environments. IOP Conf. Series: Materials Science and Engineering, 2022, vol. 1254, # 012014. https://doi.org/10.1088/1757-899X/1254/1/012014.

[17] B. Levitt, H. Lai, A. Manville. Effects of non-ionizing electromagnetic fields on flora and fauna, part 1. Rising ambient EMF levels in the environment. Reviews on Environmental Health. Walter de Gruyter GmbH, 2021, vol. 37, no. 1, pp. 81–122. https://doi.org/10.1515/reveh-2021-0026.

[18] D. B. Deaconescu, A. M. Buda, D. Vatamanu, and S. Miclaus. The Dynamics of the Radiated Field Near a Mobile Phone Connected to a 4G or 5G Network. Engineering, Technology & Applied Science Research, vol. 12, no. 1, pp. 8101–8106, Feb. 2022. https://doi.org/10.48084/etasr.4670.

[19] S. Miclaus, P. Bechet. Non-Stationary Statistics with Amplitude Probability Density Function for Exposure and Energy Density Reporting Near a Mobile Phone Running 4G Applications. Progress in Electromagnetics Research M, 2020, vol. 89, pp. 151-159, https://doi.org/10.2528/PIERM19110706.

[20] B.Kibret, A. K.Teshome, and D. T. H. Lai. Analysis of the whole-body averaged specific absorption rate (SAR) for far-field exposure of an isolated human body using cylindrical antenna theory. Prog. Electromagn. Res. M  2014, vol. 38, pp. 103-112. https://doi.org/10.2528/PIERM14072201.

[21] B. Kibret, A. K. Teshome, and D. T. H. Lai. () Characterizing the human body as a monopole antenna," IEEE Trans. Antennas Propag.  2015, vol. 63 (10), pp. 4384-5392. https://www.researchgate.net/publication/280093681.

[22] P. Dimbylow. Resonance behaviour of whole-body averaged specific energy absorption rate (SAR) in the female voxel model, NAOMI. Phys. Med. Biol., 2005, vol. 50 (17), #4053. https://doi.org/10.1088/0031-9155/50/17/009.

[23] M. Andriychuk, and T. Nazarovets. Calculation of the Average Specific Absorption Rate of the Human Body Based on the Cylindrical Antenna Model. Journal of Applied Mathematics and Physics, 2025, vol. 13, pp. 2217-2233. https://doi.org/10.4236/jamp.2025.137126.

[24]  T. Nazarovets. Rozrakhunok userednenoi pytomoi shvydkosti pohlynannia liudskoho orhanizmu na osnovi modeli tsylindrychnoi anteny. Computer Design Systems. Theory and Practice. 2025, vol. 7, no. 1, s. 213-220. https://doi.org/10.23939/cds2025.01.213.