Szukana fraza: [Abstrakt = "The aim of the article is detailed analyze the influence of a wall made of ordinary concrete on the values of the electric field intensity. Two variants of walls of different thickness were considered. The analysis includes the variability of electrical parameters of concrete \(relative electrical permittivity and conductivity\), which are used in the available literature. The values of the electric field intensity were determined at two frequencies used in wireless communication system \(f=2.4 GHz and f=5 GHz\). The differences in the intensity of the electric field resulting from the double increase in the wall thickness obtained at the same frequency have been described using the coefficient st1. For the analysis all cases, the finite difference time domain method \(FDTD\) was used."]

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