MIT Research Team Develops Model for Wireless Power
November 16, 2006 1:56 AM
comment(s) - last by
Marin Soljacic says he has the answer to wireless power, at least up to 5 meters - Image courtesy MIT
The idea of wireless energy transfer has been around for a number of years, but now MIT believes it can be done inside the lab
Massachusetts Institute of Technology (MIT) researchers
have created a system that is theoretically able to power electronic devices
wirelessly. Assistant Professor Marin Soljacic of the Department of Physics and Research Laboratory of Electronics, along with MIT graduate students Aristeidis Karalis and John Joannopoulos, are working on the "evanescent coupling" technology.
The primary downfall of other power-over-air technologies is the fact that they are extremely directional or extremely dangerous. The first roadblock in wireless power is traditionally solved by simply increasing the power and using omni-directional antennas. This unfortunately gives rise to the second downfall; enough of an increase in power to make omni-directional useful traditionally results in so much energy trasmitted that it is no longer safe for humans to stand near the device.
Soljacic's team attempts to solve this problem by building an antennas that create electromagnetic fields that resonate at particular frequencies and loop back into the device rather than completely emit out into the atmosphere. When two of these antennas operating at the same frequency have resonance loops that collide, one large loop closes between the devices and high power transmission can begin over the new electromagnetic loop.
The technology, at least in theory, should work at distances of up to five meters. Unfortunately, the team has not yet constructed or tested the system -- even though computer simulations and theoretical calculations both suggest that it should work.
This article is over a month old, voting and posting comments is disabled
Electric car on grid?
11/16/2006 9:33:40 AM
When I was a kid in Chicago, there were public(CTA) buses which ran on electrical wires up above the street albeit by direct contact using a pole. I had always wondered if electric cars could run and recharge their batteries through some kind of induction system set in certain high volume streets and freeway segments. I leave the feasibility up to the scientists, but I long ago stopped my dreaming of such a system actually being implemented in my lifetime.
"It's okay. The scenarios aren't that clear. But it's good looking. [Steve Jobs] does good design, and [the iPad] is absolutely a good example of that." -- Bill Gates on the Apple iPad
Temple University Researchers Hit the Delete Button on HIV, Remove it from Human Cells
July 22, 2014, 7:39 AM
Airbus Shows Off All-Electric E-Fan 2.0 Airplane, Plans Production in 2017
July 21, 2014, 9:29 AM
Buzz Aldrin Says First Astronauts to Set Foot on Mars Should Never Return Home
July 9, 2014, 9:46 AM
Women May Soon Be Able to Control Their Fertility via Remote Control
July 7, 2014, 10:14 AM
Tiny "Bio-bots" Powered by Muscle Cells, Electrical Pulses
July 3, 2014, 7:00 PM
Boston Using Solar-Powered Benches as Phone Charging Stations
July 1, 2014, 1:09 PM
Most Popular Articles
Microsoft Kills Entertainment Unit, May Shelve Flagship Lumia "McLaren"
July 18, 2014, 7:40 PM
JJ Abrams Unveils X-Wing Starfighter for New "Star Wars" Movie
July 21, 2014, 12:24 PM
Boeing 777 Malaysian Airlines Flight 17 Crashes in Ukraine
July 17, 2014, 1:00 PM
Ford Details ’15 F-150’s 325hp, 2.7L EcoBoost V6; Demonstrates 732-lb Weight Loss
July 22, 2014, 6:55 PM
Toyota Scientist: Autonomous Vehicles May Lead to Increased Fuel Consumption, Pollution
July 18, 2014, 2:42 PM
Latest Blog Posts
Space Terrorism is a Looming Threat For the United States
Apr 23, 2014, 7:47 PM
Facebook Aims to Provide Internet to "Every Person in the World" with Drones, Satellites
Apr 1, 2014, 10:20 AM
Retail Mobile Sites Experience Outages in Light of Simplexity's Bankruptcy
Mar 14, 2014, 8:48 AM
Tesla vs. BMW: Who Has the Safer EV?
Feb 1, 2014, 2:56 PM
Justice Leaks Details of Next HTC One Two Flagship Phone
Dec 5, 2013, 4:04 PM
More Blog Posts
Copyright 2014 DailyTech LLC. -
Terms, Conditions & Privacy Information