Attenuation of electromagnetic waves in liquid foams in the frequency range of 1 – 1250 MHz

Authors

  • O. O. Drobakhin Oles Honchar Dnipro National University, Dnipro, Ukraine
  • L. A. Filins’kyy Oles Honchar Dnipro National University, Dnipro, Ukraine

DOI:

https://doi.org/10.15421/332318

Keywords:

attenuation, multi-frequency measurements, foam, foam structure, liquid foam

Abstract

The purpose of this work is to study the attenuation of electromagnetic waves in the megahertz range (1 – 1250 MHz) in liquid foam structures. We consider issues related to shielding electromagnetic sources and reducing the visibility of metal objects from radar detection and tracking in this range, since such problem is poorly researched. A method of measuring the attenuation of foam structures in segments of strip lines of this range is proposed. Measurements are carried out using an experimental setup based on a
vector meter and an original strip cell of samples of foam structures with different foaming ratios in the ranges of 13 – 15, 28 – 30, and 50 – 51 units for different foaming agents. The dependencies of foam attenuation on frequency and the dependence on salt additives with concentrations of 1%, 4%, and 6% are found.

Downloads

Published

29-12-2023

Issue

Vol. 31 No. 2 (2023)

Section

Articles