Featured Research

from universities, journals, and other organizations

Scientists create perfect solution to iron out kinks in surfaces

Date:
November 20, 2013
Source:
Queen Mary, University of London
Summary:
A new technique that allows curved surfaces to appear flat to electromagnetic waves has been developed. The discovery could hail a step-change in how antennas are tailored to each platform, which could be useful to a number of industries that rely on high performance antennas for reliable and efficient wireless communications.

A new technique that allows curved surfaces to appear flat to electromagnetic waves has been developed by scientists at Queen Mary University of London.

Related Articles


The discovery could hail a step-change in how antennas are tailored to each platform, which could be useful to a number of industries that rely on high performance antennas for reliable and efficient wireless communications.

The researchers coated a curved surface with a medium where the refractive index -- a measure of how light passes through substances -- varies depending on the position of the wave. Although the coating is only a fraction of a wavelength thick, it can make the curvature appear invisible to surface waves.

The coating can be used as a cloak because the space created underneath the bumpy surface can shelter an object that would ordinarily have caused the wave to be scattered.

Professor of Antennas and Electromagnetics and study lead Yang Hao, said: "The design is based upon transformation optics, a concept behind the idea of the invisibility cloak. While the cloak is yet to be demonstrated 'perfect' in the free space, we have proved that it is possible for surface waves."

The underlying theory developed in this study has had a wide impact on the antennas and aerospace industry, which UK has strong presence internationally.

"With the demands of telecommunications systems in airborne and ground-based vehicles growing year by year, it is necessary to create antennas with ever increasing efficiency, yet keeping the weight and volume as low as possible," said co-author Dr Rhiannon Mitchell-Thomas from Queen Mary's School of Electronic Engineering and Computer Science.

"When electromagnetic waves encounter a bump in the surface, this alters their characteristics and decreases the efficiency of the antenna. Using this new technique, a bespoke surface wave antenna can be designed to fit the precise shape of the platform."

Co-author Oscar Quevedo-Teruel also from Queen Mary's School of Electronic Engineering and Computer Science added: "This type of integrated antenna system can be applied for any frequency band from microwave to optics, leading to ultra-fast wireless communication over the surface in the near future."


Story Source:

The above story is based on materials provided by Queen Mary, University of London. Note: Materials may be edited for content and length.


Journal Reference:

  1. R. C. Mitchell-Thomas, T. M. Mcmanus, O. Quevedo-Teruel, S. A. R. Horsley, and Y. Hao. Perfect Surface Wave Cloaks. Physical Review Letters, 2013 DOI: 10.1103/PhysRevLett.111.213901

Cite This Page:

Queen Mary, University of London. "Scientists create perfect solution to iron out kinks in surfaces." ScienceDaily. ScienceDaily, 20 November 2013. <www.sciencedaily.com/releases/2013/11/131120100627.htm>.
Queen Mary, University of London. (2013, November 20). Scientists create perfect solution to iron out kinks in surfaces. ScienceDaily. Retrieved April 21, 2015 from www.sciencedaily.com/releases/2013/11/131120100627.htm
Queen Mary, University of London. "Scientists create perfect solution to iron out kinks in surfaces." ScienceDaily. www.sciencedaily.com/releases/2013/11/131120100627.htm (accessed April 21, 2015).

Share This


More From ScienceDaily



More Matter & Energy News

Tuesday, April 21, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Raw: Maine Storm Surge Sparks Power Explosions

Raw: Maine Storm Surge Sparks Power Explosions

AP (Apr. 21, 2015) Police dash cam video shows a series of explosions along the beach in Maine as heavy storm surge soaked electrical transformers. (April 21) Video provided by AP
Powered by NewsLook.com
Japan's Maglev Train Breaks New World Speed Record

Japan's Maglev Train Breaks New World Speed Record

AFP (Apr. 21, 2015) Japan&apos;s state-of-the-art maglev train clocks a new world speed record in a test run near Mount Fuji, smashing through the 600 kilometre (373 miles) per hour mark, as Tokyo races to sell the technology abroad. Video provided by AFP
Powered by NewsLook.com
Free Home Heating Offered by E-Radiators

Free Home Heating Offered by E-Radiators

Reuters - Innovations Video Online (Apr. 21, 2015) A revolutionary new radiator design offers Dutch home-owners the chance to get free heating. The e-Radiator is a computer server modified so that the heat it generates can warm a room inside a house. Jim Drury has more. Video provided by Reuters
Powered by NewsLook.com
Solar Plane Completes 6th Leg of Quest to Circumnavigate Globe

Solar Plane Completes 6th Leg of Quest to Circumnavigate Globe

AFP (Apr. 21, 2015) Solar Impulse 2 lands in the Chinese city of Nanjing, finishing the sixth stage of its landmark 12-leg quest to circumnavigate the globe powered only by the sun. Duration: 00:42 Video provided by AFP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins