REVERBERATION CHAMBER WITH IMPROVED ELECTROMAGNETIC FIELD UNIFORMITY

摘要

The reverberation chamber comprises a shielded enclosure (10) made up of a floor (11), side walls (13 to 16), and a ceiling (12), together with an antenna (2) for emitting radiofrequency waves in order to generate radiation inside the enclosure (10) at a lowest usable frequency. The chamber also comprises, inside the enclosure (10), a set (5, 6) of passive and selective elements for absorbing radiofrequencies in a defined frequency band.

主权项

1. A reverberation chamber with improved electromagnetic field uniformity, the chamber comprising a shielded enclosure made up of a floor, side walls, and a ceiling, together with an antenna for emitting radiofrequency waves in order to generate radiation inside the enclosure at a lowest usable frequency, the chamber being characterized in that it also comprises inside the enclosure a set of passive and selective elements for absorbing radiofrequencies in a defined frequency band having an upper boundary that is said minimum lowest usable frequency of the reverberation chamber, and in that the passive and selective elements for radiofrequency absorption are arranged at a distance from the side walls of the enclosure that is not less than half the wavelength corresponding to said lowest usable frequency of the reverberation chamber.