The electromagnetic wave (EM) attenuation by building walls is experimentally investigated, focusing on the frequency range 700 MHz - 5 GHz. The results of this research can be used in the planning of the in-door radio coverage of wireless access networks like 2G, 3G, 4G, WiFi, and future 5G mobile phone systems, in the study of satellite navigation applications and in the evaluation of the resident population exposure to electromagnetic fields emitted by the radio base stations (RBS) of the mobile phone radio access network (RAN). Measurements are obtained using a portable vector network analyzer (VNA) connected to two light Vivaldi antennas. Time domain methods are used to reduce errors caused by multiple paths. Measurements of EM building wall attenuation have been carried out in the city of Rome in different buildings topologies: historical buildings from Roman Empire up to meddle 1900th century and modern reinforced concrete buildings. Measurements of EM shielding effectiveness (SE) show values even greater than 80 dB.
Measurement of electromagnetic field attenuation by building walls in the mobile phone and satellite navigation frequency bands / Micheli, Davide; Delfini, Andrea; Santoni, Fabio; Volpini, Fabrizio; Marchetti, Mario. - In: IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS. - ISSN 1536-1225. - STAMPA. - 14:(2014), pp. 698-702. [10.1109/LAWP.2014.2376811]
Measurement of electromagnetic field attenuation by building walls in the mobile phone and satellite navigation frequency bands
MICHELI, DAVIDE;DELFINI, ANDREA;SANTONI, Fabio;VOLPINI, Fabrizio;MARCHETTI, Mario
2014
Abstract
The electromagnetic wave (EM) attenuation by building walls is experimentally investigated, focusing on the frequency range 700 MHz - 5 GHz. The results of this research can be used in the planning of the in-door radio coverage of wireless access networks like 2G, 3G, 4G, WiFi, and future 5G mobile phone systems, in the study of satellite navigation applications and in the evaluation of the resident population exposure to electromagnetic fields emitted by the radio base stations (RBS) of the mobile phone radio access network (RAN). Measurements are obtained using a portable vector network analyzer (VNA) connected to two light Vivaldi antennas. Time domain methods are used to reduce errors caused by multiple paths. Measurements of EM building wall attenuation have been carried out in the city of Rome in different buildings topologies: historical buildings from Roman Empire up to meddle 1900th century and modern reinforced concrete buildings. Measurements of EM shielding effectiveness (SE) show values even greater than 80 dB.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
