Wireless communication

12 Jun 23

New Nano-Tattoos Don’t Need Batteries or Wires

Computer & Information Technology

Researchers at two institutions in Istanbul have created nano-tattoos capable of passive wireless communications with nearby devices, without the need for external power sources such as batteries. The advance could lead to numerous bio-sensing technologies that have, up until now, been stymied by relying on a bulky external power source…

17 Apr 23

Time Crystals May Improve Lasers and Enable 6G Wireless

Electrical, Electronics & Instrumentation

A novel kind of time crystal can amplify light, potentially leading to significantly better lasers and next-generation wireless communications, a new study finds.A normal crystal is a structure of many atoms organized into a regular pattern in space. However, in 2012, Nobel laureate Frank Wilczek conceived of time crystals, in…

22 Mar 23

This Mirror Reverses How Light Travels in Time

Computer & Information Technology

Light can reflect off mirrors, and sounds off surfaces. However, scientists have long theorized about time reflections, where a signal passing through a time “interface” would act like it was traveling backward in time. Now a new study for the first time demonstrates time reflections with light waves. This discovery…

23 Feb 23

Ultrafast Terahertz Tech Via Electronic Metadevices

Computer & Information Technology

Ultraquick telecommunications at terahertz frequencies are now possible using “electronic metadevices,” which may set the stage for the next generation of speedy gadgets. The way in which these novel devices control electric fields is similar to how invisibility cloaks manipulate light, heat, and sound, a new study finds.As electronics shrink,…

30 Jan 23

New Faraday Cages Can Be Switched Off and On

Electrical, Electronics & Instrumentation

Advanced new Faraday cages—the metal mesh enclosures that can block wireless signals—can also be switched on and off for reversible protection against noise, a new study finds.In addition, these new shields can be easily fabricated through a technique akin to spray-painting, which could help them find use in electronics, researchers…

30 Jan 23

Evolution and Impact of Wi-Fi Technology

Electrical, Electronics & Instrumentation

The importance of Wi-Fi as the most popular carrier of wireless IP traffic in the emerging era of IoT and 5G continues its legacy, and Wi-Fi standards are continually evolving to help implement next generation applications in the cyberspace for positioning, human computer interfacing, motion, and gesture detection, as well…