#technology #internet #wifi

#technology #internet #wifi

Originally shared by Lacerant Plainer

Wireless internet - cost effective, high speed and everywhere : Sounds like a dream? Well that's what researchers at University of Lancaster are working on. Using the W-band or the millimeter band , seems to be the way to go, promising cost effective and high speed data transfers. The system is yet to be tested in a real operating environment, but indications are favourable.

What is W-band wireless? : The ground-breaking £2.8 million TWEETHER project, funded by Horizon 2020, the biggest EU research and innovation programme ever, will set an important milestone in 'millimeter wave technology' for high speed wireless mobile and fixed point Internet.Millimeter waves - extremely high frequency waves found in the spectrum between microwaves and infrared waves - are deemed to be the most promising and cost effective solution for the future.

Promising : The TWEETHER project will result in a powerful and compact transmission hub, based on a novel travelling wave tube power amplifier and an advanced chipset in a compact terminal, with performance far outweighing any other technology. After three years of design and development, the system will be tested in a real operating environment.

New idea : Professor Paoloni said the answer was the exploitation of unused portions of the spectrum but at higher frequencies. The recent outstanding advancements in the field of vacuum electron devices and solid state electronics using millimetre wave frequencies opens the route for the breakthrough in wireless high speed data communications.

References and Sources

Phys.org: http://phys.org/news/2014-12-fastest-outdoor-wireless-internet-world.html

http://www.science20.com/news_articles/wband_wireless_high_speed_internet_outdoors_and_everywhere-151636

Related paper in IEEE : http://goo.gl/gi6K5L

Related paper in Optics Express: http://goo.gl/YIu969

Viasat site on next-gen satellites : https://www.viasat.com/broadband-satellite-networks/high-capacity-satellite-system

Related paper in Researchgate: http://goo.gl/bY8igq

Pics courtesy: Utexas, Science20 and sympatico.ca. (Pics for illustration only).

#internet #wireless #millimeterband  

#technology #wirelesspower

#technology   #wirelesspower  

Originally shared by Lacerant Plainer

When will wireless power reach the tipping point?

If you’re waiting to see when wireless power will hit the mass market, then you’re not alone. Delivering power wirelessly is perhaps one of the most hyped, long anticipated changes to the way we design and use products and machinery since the invention of electricity itself. But if you’ve been watching this space, you’ll know these solutions have been slow in coming to market and are anything but commonplace.

Why is that? What’s it going to take for this technology to hit the mainstream? Over the past two years we have witnessed first generation implementations of wireless power, mostly in the smartphone after-market. These come in the form of sleeves and charging pads but are rarely sighted amongst early adopters. Each claims to be supporting the best technology — the one that will lead the world in becoming completely unplugged. Yet, in my view, what we have seen and heard so far are a combination of impossible claims and poor end-user functionality.

WiTricity CEO Eric Giler imagines a future where power devices are embedded in the walls and carpets of homes, making for a truly wire-free household. He says with a big enough power supply and small wireless repeaters, one could even power a grocery store or office building. Conventional charging devices such as the cord for a cell phone use electromagnetic induction to transmit power. Through electromagnetic induction, an electric current is sent through a magnetic field generated by a power conductor to a smaller magnetic field generated by a receiving device. (See related quiz: "What You Don't Know About Electricity")

Eric Giler demo: Eric Giler demos wireless electricity

Article Link: http://venturebeat.com/2013/04/05/when-will-wireless-power-reach-the-tipping-point/

Natgeo article: http://news.nationalgeographic.co.in/news/energy/2012/12/121228-wireless-power/

WiTricity website: http://www.witricity.com/index.html (MIT commercial venture).

Thanks to James Brine  and Jonah Miller for mentioning Tesla.... well it got me thinking and researching!

#science #scienceeveryday #sciencesunday #electricity #wireless #wirelesscharging #wirelesselectricity