Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

  • Congratulations SDETERS on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Recent content by post355

  1. post355

    How reputable is it to use RF for wireless charging?

    In the US, the FCC regulates the power emissions of antennas. From my understanding, the power limits were set at a time where interference was a huge issue since the communications protocols being used were still nascent. Therefore the FCC restricted the power limits to be low in order to limit...
  2. post355

    How reputable is it to use RF for wireless charging?

    Where is the 23W coming from? Why did you multiply 1.5W by 15?
  3. post355

    How reputable is it to use RF for wireless charging?

    @IRstuff Their antennas aren't omnidirectional. They're directional patch antennas. So the loss for the reception at a single point using directional power transfer is much lower than the loss associated with omnidirectional transmission. I'm curious, is this directionality enough to provide...
  4. post355

    How reputable is it to use RF for wireless charging?

    I came across Energous, a company that claims to be using RF at 5.8GHz to transmit enough power to charge 12 phones from 15ft away. They have no product on the market yet they still managed to IPO, which sounds like a scam. It looks like they are using patch antennas to directionally transmit...

Part and Inventory Search