A novel fabrication technique developed by a University of Connecticut engineering professor could provide the breakthrough technology scientists have been looking for to vastly improve the efficiency ...

Researchers built a small, flexible device that harvests wi-fi, bluetooth and cellular signals, and turns them into DC electricity. Christopher Intagliata reports. One of the biggest drawbacks to ...

The upper part of the structure suspends an array of dishes that acts as a surrogate satellite, focusing sunlight, converting it to energy and sending it down to the ground, where a rectenna dish ...

How did a Georgia Tech team overcome certain limitations to develop an antenna that harvest energy in the 28-GHz band? The key role played by the Rotman lens in making it all happen. Test results ...

Rectifying antennas – "rectennas" – are used as parasitic power capture devices that absorb radio frequency (RF) energy and convert it into usable electrical power. Constructing such devices to absorb ...

Engineers at the Georgia Institute of Technology have developed a new form of technology that combines two well-established technologies — a rectifier and an antenna — to create a device capable of ...

The efficiency of optical rectennas made from carbon nanotube diode arrays can be improved by adding a double insulator layer to them. Doing this also makes the devices stable in air for the first ...

Developed by engineers at the Georgia Institute of Technology, optical rectennas use carbon nanotubes that act as antennas to capture light from the sun or other sources. As the waves of light hit the ...

Scientists are using a novel fabrication process to create ultra-efficient solar energy rectennas capable of harvesting more than 70 percent of the sun's electromagnetic radiation and simultaneously ...