Frequency Dependence of an Electromagnetic Absorption Coefficient in Magnetic Fluid
- Authors: Gareev K.G.1, Luchinin V.V.1, Sevost’yanov E.N.1, Testov I.O.1, Testov O.A.1
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Affiliations:
- St. Petersburg Electrotechnical University
- Issue: Vol 64, No 6 (2019)
- Pages: 893-896
- Section: Radiophysics
- URL: https://journals.rcsi.science/1063-7842/article/view/203645
- DOI: https://doi.org/10.1134/S1063784219060069
- ID: 203645
Cite item
Abstract
The samples of water-based magnetic fluid, which contain Fe3O4–SiO2 particles with a spherical shape and sizes less than 100 nm, have been obtained. The method based on using a transmission line has been applied to measure the electromagnetic absorption coefficient in the frequency range from 0.1 to 18.0 GHz using a measuring setup based on horn antennas and the cell based on a coplanar transmission line. It has been found that magnetic fluids can be used to produce electromagnetic shields and electromagnetic wave absorbers as well as means to carry out local hyperthermia at electromagnetic radiation frequencies higher than 7 GHz.
About the authors
K. G. Gareev
St. Petersburg Electrotechnical University
Author for correspondence.
Email: kggareev@yandex.ru
Russian Federation, St. Petersburg, 197376
V. V. Luchinin
St. Petersburg Electrotechnical University
Email: kggareev@yandex.ru
Russian Federation, St. Petersburg, 197376
E. N. Sevost’yanov
St. Petersburg Electrotechnical University
Email: kggareev@yandex.ru
Russian Federation, St. Petersburg, 197376
I. O. Testov
St. Petersburg Electrotechnical University
Email: kggareev@yandex.ru
Russian Federation, St. Petersburg, 197376
O. A. Testov
St. Petersburg Electrotechnical University
Email: kggareev@yandex.ru
Russian Federation, St. Petersburg, 197376