Welcome to the Slashdot Beta site -- learn more here. Use the link in the footer or click here to return to the Classic version of Slashdot.

Thank you!

Before you choose to head back to the Classic look of the site, we'd appreciate it if you share your thoughts on the Beta; your feedback is what drives our ongoing development.

Beta is different and we value you taking the time to try it out. Please take a look at the changes we've made in Beta and  learn more about it. Thanks for reading, and for making the site better!

Harness electromagnetic wave for energy

zorazora (2421200) writes | more than 2 years ago

Wireless Networking 2

zorazora (2421200) writes "A team of researchers at Georgia Tech has found a way to harness electromagnetic wave for energy.
"Tentzeris and his team of researchers, including IEEE members Rushi Vyas and Vasileios Lakafosis, have created a self-powered sensor that relies on an ultrawideband antenna to capture energy from the 100 megahertz and greater frequencies generated by all those systems. The scavenged energy is converted from AC to DC, and then stored in a capacitor that gradually fills until the sensor is fully charged. The team has used the antenna to power a number of sensors, including sensors that detect heat and humidity, as well as biosensors that monitor physiological changes in humans. And Tentzeris says that as the technology advances, it has the potential to charge other devices.""

Link to Original Source

cancel ×


Sorry! There are no comments related to the filter you selected.

100 Mhz is the bottom end of the radio spectrum (1)

cjcurrie (2494010) | more than 2 years ago | (#37843086)

They said, "... relies on an ultrawideband antenna to capture energy from the 100 megahertz and greater frequencies." 100 Mhz is the bottom end of the radio spectrum. And the radio spectrum (wireless devices) is at the bottom end of the electromagnetic spectrum, even below microwaves (more wireless devices and heating rays) and infrared rays (more heating rays, from the sun or a fire), which is below the visible light. And so on, up through the radiation spectrums. That's a lot of potential energy sources.

Re:100 Mhz is the bottom end of the radio spectrum (1)

zorazora (2421200) | more than 2 years ago | (#37853340)

Their study is very interesting and may have some value. What is lacking in the report is first of all the initiative - Why electromagnetic spectrum given that there are so many energy sources out there to be harnessed; and secondly thorough analysis on its potential interruption on the communication channel.
Check for New Comments
Slashdot Login

Need an Account?

Forgot your password?

Submission Text Formatting Tips

We support a small subset of HTML, namely these tags:

  • b
  • i
  • p
  • br
  • a
  • ol
  • ul
  • li
  • dl
  • dt
  • dd
  • em
  • strong
  • tt
  • blockquote
  • div
  • quote
  • ecode

"ecode" can be used for code snippets, for example:

<ecode>    while(1) { do_something(); } </ecode>