Electric textile lights a lamp when stretched

Researchers at Chalmers University of Technology have developed a fabric that converts kinetic energy into electric power. The greater the load applied to the textile and the wetter it becomes, the more electricity it generates. ...

Power amplifiers for 5G made of gallium nitride

The wireless data transmission via mobile communication is reliable and affordable. However, data volume per user is rising exponentially. Causes are not only the continuously growing number of smartphones, but also trends ...

Wirelessly supplying power to brain

Human and animal movements generate slight neural signals from their brain cells. These signals obtained using a neural interface are essential for realizing brain-machine interfaces (BMI). Such neural recording systems using ...

A new measure for wireless power transfer

Wireless power transfer has many promising applications, such as contactless powering, electric vehicles, and energy harvesting. To construct a wireless power-transfer system, a "wireless transfer coupler" is necessary to ...

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