Radiofrequency transmission through rectangular apertures in perimetrally uncoated low emissivity windows

Abstract

Abstract Perimetrally uncoated windows can be a simple and low cost solution to the problem of radio frequency (RF) transmission in low-e glass when the requirements are not too demanding. However, this kind of non-uniform and relatively large structures are difficult to characterize experimentally. The aim of this work is to develop and experimentally verify a method for the simulation of the RF transmission of perimetrally uncoated windows. We propose to study these windows as a composition of four rectangular apertures in a metallic sheet. Using numerical simulations, we are able to obtain the transmission coefficient of these apertures. Then, a multilayer model based on transmission line theory is used to consider the effect of the different glazings and cameras which can be part of a window. Finally, the results of this study are compared to the measurements of complete windows in the 1000 MHz–6000 MHz frequency range.