electromagnetic radiation

A team of Hanyang University researchers in South Korea have developed flexible, electromagnetic metamaterial absorbers to reduce radiation from electronic devices. These absorbers resemble tiny “snake-shaped” unit cells and have unique properties not found in nature.

Federal and commercial companies are being asked to relinquish as much space as they can of the electromagnetic radiation frequency spectrum for the Department of Defense. The part of the spectrum that is needed for the current fleet of the U.S. military drones and the next generation of F-35 stealth jets is also being used by cellphone users.

A research team at The Hong Kong Polytechnic University has developed a chip that can be placed on any sensing point – such as electrical cables, conductors, junctions – to detect electrical currents. This revolutionary chip does not use power supplies and signal conditioners that are traditionally used with current sensors.