A shield capable of attenuating wireless signals on demand has been
created using a conductive member, such as a metal mesh or perforated
metal sheet, which is either coupled to ground or subjected to an
electron flow. A metal enshrouded signal isolation chamber was built and
a wireless router was placed inside it. With the top of the chamber open,
a plurality of conductive assemblies were evaluated by placing each
conductive assembly on top of the open chamber, one at a time, and
measuring the resulting signal attenuation.