Mylar “space blankets”, sold to survivalists for their ability to reflect heat, have been found by a radio hobbyist to be equally effective at reflecting radio signals.
Using a small sheet of the metalised fabric, the amateur was able to significantly boost the signal from his antenna.
The mirror effect of the foil was used to create a larger virtual antenna by reflecting the Radio waves from the ground.
While the experiment only really works at higher radio frequencies, it could provide an effective and cheaper solution for certain radio applications such as data links and forming pre-reflective zones for satellite communication.
Similar metalised fabrics have been used by scientists to create antenna arrays that can be used to trap or repel objects in orbit by manipulating the electromagnetic fields.
