Investigation of reflection in the foamed structures

Abstract

The purpose of this paper is to investigate the coefücients of reflection of foam structures as a function of the foaming ratio of foams, the thicknesses of the foamed layers under investigation, and their combination with quasi-homogeneous layers. The investigations were carried out in the open space in the frequency range of 8–12 GHz. Reflection of this range for foams with a foaming ratio of 30, 60 and 170 and for the thickness of the foam samples: 10, 47 and 84 mm. It has been shown that foam layers, both alone and in combination with quasi-homogeneous layers, may be of some interest for the development and fabrication of electromagnetic wave absorbers of a given range for appropriate applications.