A TEM cell designed to operate at 900 MHz for exposing small-restrained animals (e.g. mice) has been theoretically, numerically and experimentally characterized at 2.45 GHz, which is the central frequency of the WiFi protocol. This study aims at evaluating the influence of higher order modes on the field homogeneity. The results demonstrate the superposition of a tolerable standing wave, due to reflections at the cell terminations, and a slight beat wave due to the interference between different modes. Nevertheless, the final outcome is that the system can still be efficiently used to expose small animals in specific WiFi channels, provided they are properly placed in correspondence to the maxima of the electric field along the guide length.

An Over-Moded TEM Cell System for in Vivo Exposure at 2.45 GHz / Paffi, Alessandra; Caterina, Merla; Liberti, Micaela; Fabio, Fratta; Rosanna, Pinto; Giorgio A., Lovisolo; Apollonio, Francesca. - In: JOURNAL OF ELECTROMAGNETIC ANALYSIS AND APPLICATIONS. - ISSN 1942-0730. - ELETTRONICO. - 4:Number 9(2012), pp. 345-352. [10.4236/jemaa.2012.49048]

An Over-Moded TEM Cell System for in Vivo Exposure at 2.45 GHz

PAFFI, ALESSANDRA;LIBERTI, Micaela;APOLLONIO, Francesca
2012

Abstract

A TEM cell designed to operate at 900 MHz for exposing small-restrained animals (e.g. mice) has been theoretically, numerically and experimentally characterized at 2.45 GHz, which is the central frequency of the WiFi protocol. This study aims at evaluating the influence of higher order modes on the field homogeneity. The results demonstrate the superposition of a tolerable standing wave, due to reflections at the cell terminations, and a slight beat wave due to the interference between different modes. Nevertheless, the final outcome is that the system can still be efficiently used to expose small animals in specific WiFi channels, provided they are properly placed in correspondence to the maxima of the electric field along the guide length.
2012
in vivo experiments; tem cell; wifi signal; exposure system
01 Pubblicazione su rivista::01a Articolo in rivista
An Over-Moded TEM Cell System for in Vivo Exposure at 2.45 GHz / Paffi, Alessandra; Caterina, Merla; Liberti, Micaela; Fabio, Fratta; Rosanna, Pinto; Giorgio A., Lovisolo; Apollonio, Francesca. - In: JOURNAL OF ELECTROMAGNETIC ANALYSIS AND APPLICATIONS. - ISSN 1942-0730. - ELETTRONICO. - 4:Number 9(2012), pp. 345-352. [10.4236/jemaa.2012.49048]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/501853
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