Featured Research

from universities, journals, and other organizations

New Mobile Phone Aerial Cuts Radiation Passing Through User's Head By 97% And Doubles Phone Battery Power

Date:
December 21, 2000
Source:
University Of Warwick
Summary:
Mobile telephones are likely to be one of the most popular gifts this Christmas - but an revolutionary invention, by a Professor in the Engineering Department of the University of Warwick, means we could all soon be rushing to buy a significantly safer and more efficient mobile phone next year. Professor Roger Green's invention will cut the energy passing through a user's head by 97% while also doubling battery life, or halving the size of the battery needed making mobiles even smaller.

Mobile telephones are likely to be one of the most popular gifts this Christmas - but an revolutionary invention, by a Professor in the Engineering Department of the University of Warwick, means we could all soon be rushing to buy a significantly safer and more efficient mobile phone next year. Professor Roger Green's invention will cut the energy passing through a user's head by 97% while also doubling battery life, or halving the size of the battery needed making mobiles even smaller.

Professor Green noticed that antennas for mobiles tend to be based on well-established simple structures (usually "quarter wave dipoles"). Because of their need to be compact, there is no room for more sophistication using conventional techniques. However their very simplicity, and the fact they broadcast radiation in every direction including the users head, has led some to be concerned about possible health hazards. Even if the radiation does not cause a health hazard from a technical point of view, the power being transmitted into a user's head is wasted, even if a "hands-free" kit is used.

Professor Green has designed a new antenna based on the combination of three elements, "a diffraction antenna" an "dielectric antenna", and a "contoured electric field structure" so that radiation that would move to the user's head is redirected away, by a factor of up to 30 times, in comparison to radiation levels from most current mobile phones.

The effect of all these design elements is to produce a compact antenna which not only reduces radiation passing through a users head by up to 30 times - it can also double the amount of radiation broadcast away from the head of the user in comparison to that from a standard antenna. This increased strength signal means that for mobile phones, battery life is extended, or batteries can be smaller for the same effective range of transmission. The reduced battery size coupled with the reduced antenna size that results from this technology can thus produce even smaller mobile phones.

The increased efficiency that generates that doubling of signal power could be used instead to halve the radiation output of the phone overall generating the same signal strength as current phones but doubling the reduction of radiation broadcast through the users head. This would mean 60 times, less radaition being broadcast through a users head reducing even more any possible health hazards.

Professor Green is now seeking interest from Mobile telephone companies to develop commercial models of this technology.


Story Source:

The above story is based on materials provided by University Of Warwick. Note: Materials may be edited for content and length.


Cite This Page:

University Of Warwick. "New Mobile Phone Aerial Cuts Radiation Passing Through User's Head By 97% And Doubles Phone Battery Power." ScienceDaily. ScienceDaily, 21 December 2000. <www.sciencedaily.com/releases/2000/12/001221072907.htm>.
University Of Warwick. (2000, December 21). New Mobile Phone Aerial Cuts Radiation Passing Through User's Head By 97% And Doubles Phone Battery Power. ScienceDaily. Retrieved August 28, 2014 from www.sciencedaily.com/releases/2000/12/001221072907.htm
University Of Warwick. "New Mobile Phone Aerial Cuts Radiation Passing Through User's Head By 97% And Doubles Phone Battery Power." ScienceDaily. www.sciencedaily.com/releases/2000/12/001221072907.htm (accessed August 28, 2014).

Share This




More Matter & Energy News

Thursday, August 28, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Australian Airlines Relax Phone Ban Too

Australian Airlines Relax Phone Ban Too

Reuters - Business Video Online (Aug. 26, 2014) Qantas and Virgin say passengers can use their smartphones and tablets throughout flights after a regulator relaxed a ban on electronic devices during take-off and landing. As Hayley Platt reports the move comes as the two domestic rivals are expected to post annual net losses later this week. Video provided by Reuters
Powered by NewsLook.com
Hurricane Marie Brings Big Waves to California Coast

Hurricane Marie Brings Big Waves to California Coast

Reuters - US Online Video (Aug. 26, 2014) Huge waves generated by Hurricane Marie hit the Southern California coast. Rough Cut (no reporter narration). Video provided by Reuters
Powered by NewsLook.com
Chinese Researchers Might Be Creating Supersonic Submarine

Chinese Researchers Might Be Creating Supersonic Submarine

Newsy (Aug. 26, 2014) Chinese researchers have expanded on Cold War-era tech and are closer to building a submarine that could reach the speed of sound. Video provided by Newsy
Powered by NewsLook.com
Breakingviews: India Coal Strained by Supreme Court Ruling

Breakingviews: India Coal Strained by Supreme Court Ruling

Reuters - Business Video Online (Aug. 26, 2014) An acute coal shortage is likely to be aggravated as India's supreme court declared government coal allocations illegal, says Breakingviews' Peter Thal Larsen. Video provided by Reuters
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:
from the past week

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