Measurement of Electromagnetic Field Attenuation by Building Walls in the Mobile Phone and Satellite Navigation Frequency Bands


The electromagnetic (EM) wave attenuation by building walls is experimentally investigated, that specialize in the frequency range 700 MHz–5 GHz. The results of this research will be utilized in the look of the indoor radio coverage of wireless access networks like 2G, 3G, 4G, WiFi, and future 5G portable systems, in the study of satellite navigation applications, and within the evaluation of the resident population exposure to electromagnetic fields emitted by the radio base stations (RBSs) of the transportable radio access network (RAN). Measurements are obtained using a moveable vector network analyzer (VNA) connected to two lightweight Vivaldi antennas. Time-domain ways are used to cut back errors caused by multiple methods. Measurements of EM building wall attenuation are allotted in the town of Rome, Italy, in different buildings topologies: historical buildings from the Roman Empire up to middle nineteenth-century and trendy reinforced concrete buildings. Measurements of EM shielding effectiveness (SE) show values even larger than 80 dB.

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