Electromagnetic modeling, optimization and on-site verification of electromagnetic fields exposure from high power RF sources
DOI:
https://doi.org/10.1109/ICATT.2007.4425192Keywords:
BF antennas, electromagnetic radiation effects, modeling, pollution measurementAbstract
Human hazard consequent to electromagnetic exposure is identified and controlled by civil and military recommendations and laws. When the exposure impact is due to high average power electromagnetic sources, it is mandatory to approach the siting evaluation and installation together with the human hazard aspect. Main steps are: development of a state-of-the-art electromagnetic model of the sources, embedded on the surrounding structures with details of materials and geometry; development of an optimization procedure aimed to maintain adequate Quality of Service and minimize the exposure; on-site test of the source, aimed to confirm the applied hypothesis and to certify the status of the area. The details of these steps are described, based on innovative modeling and measurement experiences on a large number of new high power multimedia telecommunication systems.References
International Commission on Non-Ionizing Radiation Protection (ICNIRP) 1998. Guidelines for limiting exposure to time-varying electric, magnetic, electromagnetic fields up to 300 GHz.
Russian National Committee on non-ionizing radiation protection (RNCNIRP). Opinion about the question of biological effects of the electromagnetic fields of cell phones.
MOULDER, J.E.; FOSTER, K.R. Biological effects of power frequency fields as they relate to cancerogenesis. Proc. of the Society for Experimental Biology and Medicine, doi: http://dx.doi.org/10.3181/00379727-209-43905A.
NATO Stanag 2345, 2003. Evaluation and control of personnel exposure to radio frequency fields.
HARRINGTON, R.F. Field Computation by Moment Methods. Macmillan Company, 1968.
HESS, G.C. Handbook of Land-Mobile Radio System Coverage. Artech House, 1998.
LEE, S.-W.; ZARRILLO, G.; LAW, C.-L. Simple formulas for transmission through periodic metal grids or plates. IEEE Trans. Antennas Propag., Sep. 1982, v.30, n.5, p.904-909, doi: http://dx.doi.org/10.1109/TAP.1982.1142923.
FOGED, L.J.; MIOC, F.; ROSA, A.R. Applicability investigation of holographic back-propagation of spherical near field measured data. Proc. of 1st European Conf. on Antennas and Propagation, EuCAP 2006, 6-10 Nov. 2006, Nice. IEEE, 2006, p.1-6, doi: http://dx.doi.org/10.1109/EUCAP.2006.4584680.
KELLER, H. Standardized personal safety measurements in the RF and Microwave range. Application Note Wandel&Goltermann, 1996.
