 |  |  |  |  |
Passive WiFi On Microwatts
| |||||||||
|
Passive WiFi On Microwatts
| | |||||||
 |
 |
| | Thread Tools |
29th February 2016, 06:44
| #1 |
| [M] Reviewer  Join Date: May 2010 Location: Romania
Posts: 153,541
 |  Passive WiFi On Microwatts A lot of you use WiFi for your Internet of Things devices, but that pretty much rules out a battery-powered deployment because WiFi devices use a lot of juice. Until now. Researchers at the University of Washington have developed a passive WiFi implementation that uses only microwatts per device. Working essentially like backscatter RFID tags do, each node has a WiFi antenna that can be switched to either reflect or absorb 2.4 GHz radiation. Your cell phone, or any other WiFi device, responds to this backscattered signal. All that’s missing is a nice steady signal to reflect. http://hackaday.com/2016/02/26/passi...on-microwatts/ |
|  |
|
Similar Threads | ||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| Eminent WiFi Travel Reader and WiFi Travel Router review | Stefan Mileschin | WebNews | 0 | 17th April 2013 10:49 |
| Apple's iPad WiFi + 4G renamed 'iPad WiFi + Cellular' across many of its stores | Stefan Mileschin | WebNews | 0 | 14th May 2012 09:26 |
| ASRock P43R1600Twins-WiFi & P45R2000-WiFi | Massman | WebNews | 0 | 21st September 2008 21:26 |
| ASRock P43R1600Twins-WiFi & P45R2000-WiFi Launched | jmke | WebNews | 0 | 30th May 2008 13:11 |
| MSI 8600GT Passive Cooled | jmke | WebNews | 0 | 11th June 2007 11:35 |
| XFX passive 7950 GT | piotke | WebNews | 0 | 17th September 2006 15:24 |
| Sapphire X550 Passive PCI-E 256 | Sidney | WebNews | 0 | 10th September 2005 17:35 |
| Passive PSU 7-way Roundup | jmke | WebNews | 0 | 28th June 2004 11:04 |
| passive h²o cooling | RichBa5tard | Hardware Overclocking and Case Modding | 17 | 5th August 2003 18:49 |
| Thread Tools | |
| |
