Progress In Electromagnetics Research
ISSN: 1070-4698, E-ISSN: 1559-8985
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By P. F. Biagi, L. Castellana, T. Maggipinto, G. Maggipinto, T. Ligonzo, L. Schiavulli, D. Loiacono, A. Ermini, M. Lasalvia, G. Perna, and V. Capozzi

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A system generating 1.8 GHz electromagnetic fields for bio-medical and behavioral study on laboratory animals was designed and implemented. The system is based on a reverberation chamber. An input power up to 5 W can be sent to an indoor transmitting antenna and an electric field strength (E) more than 90 V/m can be reached inside the chamber. The system was characterized at different input powers measuring E in different points by means of a miniature sensor. Then, boxes with 300 cc of physiological liquid inside were realized as simple phantoms simulating laboratory animals (rats) and E inside the liquid was measured, performing several simulations by moving the phantoms (1,2) in the chamber and/or putting them still in different positions. On the basis of these measurements, the SAR (Specific Absorption Rate) and the Pe (power efficiency = SAR/input power) were determined at different powers. The actual system is characterized by a low power efficiency with respect to the "in vivo" exposition systems based on transversal electromagnetic (TEM) cells. Its advantage is to have inside the chamber a habitat similar to the usual one for the laboratory animals.

P. F. Biagi, L. Castellana, T. Maggipinto, G. Maggipinto, T. Ligonzo, L. Schiavulli, D. Loiacono, A. Ermini, M. Lasalvia, G. Perna, and V. Capozzi, "A reverberation chamber to investigate the possible effects of "in vivo" exposure of rats to 1.8 GHz electromagnetic fields: a preliminary study," Progress In Electromagnetics Research, Vol. 94, 133-152, 2009.

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