Abstract
We analyze the possibility of determining three parameters of a magnetic fluid (permittivity, volume fraction of the solid phase, and diameter of magnetic fluid particles) simultaneously from the temperature dependence of the reflection spectrum of microwave radiation. The reflected signal is detected using a microwave interferometer in a magnetic field, and the microwave interferometer is loaded with a layer of a magnetic fluid. Analysis of the spectral dependence of the reflection coefficient and its temperature dependence makes it possible to get information on the properties of the magnetic fluid under investigation, to refine the value of the permittivity of the magnetic fluid, and to obtain the effective permittivity of nanosize magnetic particles.
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