An existing shielded room was transformed into a low-Q reverberation chamber in order to perform EMC tests in an aircraft-like electromagnetic environment. An aluminum stirrer and a stepping motor were installed in the existing chamber to provide an appropriate mechanical stirring of the EM field. The performances of the chamber were characterized by means of calibration and Q-factor calculations. The Q-factor was intentionally lowered to reproduce the typical electromagnetic environment aboard aircraft. The performance of the chamber was evaluated when an amplitude modulated signal excites the cavity. The developed set-up was aimed to test the response of a sensor for the detection of portable electronic devices, which is sensitive only to GSM-modulated signals.
Low-Q Reverberation Chamber to Reproduce Aircraft-like EM Environment / Greco, Sandra; Sarto, Maria Sabrina. - STAMPA. - (2006), pp. 502-507. (Intervento presentato al convegno EMC Europe 2006 tenutosi a Barcellona, Spagna nel 4-8 Settembre 2006).
Low-Q Reverberation Chamber to Reproduce Aircraft-like EM Environment
GRECO, SANDRA;SARTO, Maria Sabrina
2006
Abstract
An existing shielded room was transformed into a low-Q reverberation chamber in order to perform EMC tests in an aircraft-like electromagnetic environment. An aluminum stirrer and a stepping motor were installed in the existing chamber to provide an appropriate mechanical stirring of the EM field. The performances of the chamber were characterized by means of calibration and Q-factor calculations. The Q-factor was intentionally lowered to reproduce the typical electromagnetic environment aboard aircraft. The performance of the chamber was evaluated when an amplitude modulated signal excites the cavity. The developed set-up was aimed to test the response of a sensor for the detection of portable electronic devices, which is sensitive only to GSM-modulated signals.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
