Compact Exposimeter Device for the Characterization and Recording of Electromagnetic Fields from 78 MHz to 6 GHz with Several Narrow Bands (300 kHz)
Marco Xavier Rivera González,
Nazario Félix González,
Isabel López,
Juan Sebastián Ochoa Zambrano,
Andrés Miranda Martínez,
Ceferino Maestú Unturbe
Affiliations
Marco Xavier Rivera González
Center for Biomedical Technology (CTB), Escuela Tecnica Superior de Ingenieros de Telecomunicaciones (ETSIT), Universidad Politécnica de Madrid (UPM), 28040 Madrid, Spain
Nazario Félix González
Center for Biomedical Technology (CTB), Escuela Tecnica Superior de Ingenieros de Telecomunicaciones (ETSIT), Universidad Politécnica de Madrid (UPM), 28040 Madrid, Spain
Isabel López
Center for Biomedical Technology (CTB), Escuela Tecnica Superior de Ingenieros de Telecomunicaciones (ETSIT), Universidad Politécnica de Madrid (UPM), 28040 Madrid, Spain
Juan Sebastián Ochoa Zambrano
School of Computer Systems Engineering (ETSISI), Universidad Politécnica de Madrid (UPM), 28040 Madrid, Spain
Andrés Miranda Martínez
Center for Biomedical Technology (CTB), Escuela Tecnica Superior de Ingenieros de Telecomunicaciones (ETSIT), Universidad Politécnica de Madrid (UPM), 28040 Madrid, Spain
Ceferino Maestú Unturbe
Center for Biomedical Technology (CTB), Escuela Tecnica Superior de Ingenieros de Telecomunicaciones (ETSIT), Universidad Politécnica de Madrid (UPM), 28040 Madrid, Spain
A novel compact device with spectrum analyzer characteristics has been designed, which allows the measuring of the maximum power received in multiple narrow frequency bands of 300 kHz, recording the entire spectrum from 78 MHz to 6 GHz; the device is capable of measuring the entire communications spectrum and detecting multiple sources of electromagnetic fields using the same communications band. The proposed device permits the evaluation of the cross-talk effect that, in conventional exposimeters, generates a mistake estimation of electromagnetic fields. The device was calibrated in an anechoic chamber for far-fields and was validated against a portable spectrum analyzer in a residential area. A strong correlation between the two devices with a confidence higher than 95% was obtained; indicating that the device could be considered as an important tool for electromagnetic field studies.