Navigation Links
Researchers devise new, stretchable antenna for wearable health monitoring
Date:3/18/2014

Researchers from North Carolina State University have developed a new, stretchable antenna that can be incorporated into wearable technologies, such as health monitoring devices.

"Many researchers including our lab have developed prototype sensors for wearable health systems, but there was a clear need to develop antennas that can be easily incorporated into those systems to transmit data from the sensors, so that patients can be monitored or diagnosed," says Dr. Yong Zhu, an associate professor of mechanical and aerospace engineering at NC State and senior author of a paper describing the work.

The researchers wanted to develop an antenna that could be stretched, rolled or twisted and always return to its original shape, because wearable systems can be subject to a variety of stresses as patients move around.

To create an appropriately resilient, effective antenna, the researchers used a stencil to apply silver nanowires in a specific pattern and then poured a liquid polymer over the nanowires. When the polymer sets, it forms an elastic composite material that has the nanowires embedded in the desired pattern.

This patterned material forms the radiating element of a microstrip patch antenna. By manipulating the shape and dimensions of the radiating element, the researchers can control the frequency at which the antenna sends and receives signals. The radiating layer is then bonded to a "ground" layer, which is made of the same composite, except it has a continuous layer of silver nanowires embedded.

The researchers also learned that, while the antenna's frequency does change as it is stretched (since that changes its dimensions), the frequency stays within a defined bandwidth. "This means it will still communicate effectively with remote equipment while being stretched," Adams says. "In addition, it returns to its original shape and continues to work even after it has been significantly deformed, bent, twisted or rolled." As the frequency changes almost linearly with the strain, the antenna can be used a wireless strain sensor as well.

"Other researchers have developed stretchable sensors, using liquid metal, for example," Zhu says. "Our technique is relatively simple, can be integrated directly into the sensors themselves, and would be fairly easy to scale up."

The work on the new, stretchable antenna builds on previous research from Zhu's lab to create elastic conductors and multifunctional sensors using silver nanowires.


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

Related biology news :

1. Researchers find high acceptability of 3-colored raspberry jelly
2. Motion and muscles dont always work in lockstep, researchers find in surprising new study
3. New bilateral pilot opportunity will fund collaborations between US and UK bioscience researchers
4. Bucking conventional wisdom, researchers find black sea bass tougher than expected
5. Researchers reveal gap in carbon capture and sequestration education
6. Researchers show that bold baboons learn to solve tasks from other baboons
7. A tale of 2 data sets: New DNA analysis strategy helps researchers cut through the dirt
8. Penn researchers model a key breaking point involved in traumatic brain injury
9. Promising news for solar fuels from Berkeley Lab researchers at JCAP
10. Researchers capture most complete picture of gene expression in cancer cell cycle
11. Scripps Wellderly Genome Resource now available to researchers
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Researchers devise new, stretchable antenna for wearable health monitoring
(Date:4/6/2017)... LONDON , April 6, 2017 ... Control, RFID, ANPR, Document Readers, by End-Use (Transportation & ... Energy Facility, Oil, Gas & Fossil Generation Facility, Nuclear ... Healthcare, Educational, Other) Are you looking for ... Authentication sector? ...
(Date:4/4/2017)... --  EyeLock LLC , a leader of iris-based identity ... and Trademark Office (USPTO) has issued U.S. Patent No. ... iris image with a face image acquired in sequence ... th issued patent. "The issuance ... multi-modal biometric capabilities that have recently come to market ...
(Date:3/30/2017)... , March 30, 2017 Trends, opportunities and ... and behavioral), by technology (fingerprint, AFIS, iris recognition, facial ... and others), by end use industry (government and law ... financial and banking, and others), and by region ( ... , Asia Pacific , and the ...
Breaking Biology News(10 mins):
(Date:10/11/2017)... , ... October 11, 2017 , ... ... the implantation and pregnancy rates in frozen and fresh in vitro fertilization ... progesterone and maternal age to IVF success. , After comparing the results from ...
(Date:10/10/2017)... , ... October 10, 2017 , ... San Diego-based team ... its corporate rebranding initiative announced today. The bold new look is part of ... the company moves into a significant growth period. , It will also expand its ...
(Date:10/10/2017)... ... October 10, 2017 , ... For ... has won a US2020 STEM Mentoring Award. Representatives of the FirstHand program travelled ... Volunteer Experience from US2020. , US2020’s mission is to change the trajectory of ...
(Date:10/10/2017)... research firm Parks Associates announced today that Tom Kerber ... Annual Meeting , October 11 in Scottsdale, Arizona . ... how smart safety and security products impact the competitive landscape. ... Parks Associates: Smart Home Devices: Main Purchase Driver ... "The residential security market has experienced continued growth, and the ...
Breaking Biology Technology: