Navigation Links
Shape shifters: Researchers create new breed of antennas
Date:12/1/2009

Antennas aren't just for listening to the radio anymore. They're used in everything from cell phones to GPS devices. Research from North Carolina State University is revolutionizing the field of antenna design creating shape-shifting antennas that open the door to a host of new uses in fields ranging from public safety to military deployment.

Modern antennas are made from copper or other metals, but there are limitations to how far they can be bent and how often before they break completely. NC State scientists have created antennas using an alloy that "can be bent, stretched, cut and twisted and will return to its original shape," says Dr. Michael Dickey, assistant professor of chemical and biomolecular engineering at NC State and co-author of the research.

The researchers make the new antennas by injecting an alloy made up of the metals gallium and indium, which remains in liquid form at room temperature, into very small channels the width of a human hair. The channels are hollow, like a straw, with openings at either end but can be any shape. Once the alloy has filled the channel, the surface of the alloy oxidizes, creating a "skin" that holds the alloy in place while allowing it to retain its liquid properties.

"Because the alloy remains a liquid," Dickey says, "it takes on the mechanical properties of the material encasing it." For example, the researchers injected the alloy into elastic silicone channels, creating wirelike antennas that are incredibly resilient and that can be manipulated into a variety of shapes. "This flexibility is particularly attractive for antennas because the frequency of an antenna is determined by its shape," says Dickey. "So you can tune these antennas by stretching them."

While the alloy makes an effective antenna that could be used in a variety of existing electronic devices, its durability and flexibility also open the door to a host of new applications. For example, an antenna in a flexible silicone shell could be used to monitor civil construction, such as bridges. As the bridge expands and contracts, it would stretch the antenna changing the frequency of the antenna, and providing civil engineers information wirelessly about the condition of the bridge.

Flexibility and durability are also ideal characteristics for military equipment, since the antenna could be folded or rolled up into a small package for deployment and then unfolded again without any impact on its function. Dickey thinks these new applications are the most likely uses for the new antennas, since the alloy is more expensive than the copper typically used in most consumer electronics that contain antennas.


'/>"/>

Contact: Matt Shipman
matt_shipman@ncsu.edu
919-515-6386
North Carolina State University
Source:Eurekalert  

Related biology news :

1. The cause behind the characteristic shape of a long leaf revealed
2. Slipper-shaped blood cells
3. Study shows how disruption of spectrin-actin network causes lens cells in the eye to lose shape
4. Worlds largest ocean observatory takes shape
5. Shape matters in the case of cobalt nanoparticles
6. New species of phallus-shaped mushroom named after California Academy of Sciences scientist
7. Geography and history shape genetic differences in humans
8. Breastfeeding duration and weaning diet may shape childs body composition
9. West Nile virus studies show how star-shaped brain cells cope with infection
10. Scripps research scientists watch as individual alpha-synuclein proteins change shape
11. RNA research strategy for Europe takes shape
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Shape shifters: Researchers create new breed of antennas
(Date:10/4/2017)... -- GCE Solutions, a global clinical research organization (CRO), announces the launch ... October 4, 2017. Shadow is designed to assist medical writers and ... of the European Medicines Agency (EMA) in meeting the requirements for ... ... ...
(Date:6/30/2017)... ARLINGTON, Va. , June 30, 2017 /PRNewswire-USNewswire/ ... a leading developer and supplier of face and ... the ATA Featured Product provider program. ... created an innovative way to monitor a driver,s ... benefit greatly from being able to detect fatigue ...
(Date:5/16/2017)... May 16, 2017  Veratad Technologies, LLC ( www.veratad.com ... age and identity verification solutions, announced today they will ... 2017, May 15 thru May 17, 2017, in ... International Trade Center. Identity impacts the ... in today,s quickly evolving digital world, defining identity is ...
Breaking Biology News(10 mins):
(Date:10/12/2017)... ... 12, 2017 , ... The Blavatnik Family Foundation and the ... of the 2017 Blavatnik Regional Awards for Young Scientists. Established in 2007, ... the New York Academy of Sciences to honor the excellence of outstanding postdoctoral ...
(Date:10/12/2017)... ... October 12, 2017 , ... RPS ... clinical study that demonstrates the accuracy of the FebriDx® test, a commercially-ready, ... acute bacterial and viral respiratory tract infections by testing the body’s immune ...
(Date:10/12/2017)... , ... October 12, 2017 , ... ... with the pharmaceutical and biotechnology industries to improve patient outcomes and quality of ... trends in analytical testing are being attributed to new regulatory requirements for all ...
(Date:10/11/2017)... ... October 11, 2017 , ... At its national board meeting ... I. Sheikh, the co-founder, CEO and chief research scientist of Minnesota-based Advanced Space ... membership in ARCS Alumni Hall of Fame . ASTER Labs is a ...
Breaking Biology Technology: