Navigation Links
3-D printing method advances electrically small antenna design
Date:3/16/2011

a with a Q that very closely approaches the fundamental limit dictated by physics (known as the Chu limit).

Conformal printing allows the antenna's meander lines to be printed on the outside or inside of hemispherical substrates, adding to its flexibility.

"Unlike planar substrates, the surface normal is constantly changing on curvilinear surfaces, which presents added fabrication challenges," Lewis noted. To conformally print features on hemispherical substrates, the silver ink must strongly wet the surface to facilitate patterning even when the deposition nozzle (100 μm diameter) is perpendicular to the printing surface.

To fabricate an antenna that can withstand mechanical handling, for example, the silver nanoparticle ink is printed on the interior surface of glass hemispheres. Other non-spherical ESAs can be designed and printed using a similar approach to enable integration of low Q antennas on, for example, the inside of a cell phone case or the wing of an unmanned aerial vehicle. The antenna's operating frequency is determined primarily by the printed conductor cross-section and the spacing (or pitch) between meander lines within each arm.

According to the researchers, their design can be rapidly adapted to new specifications, including other operating frequencies, device sizes, or encapsulated designs that offer enhanced mechanical robustness.

"This conformal printing technique can be extended other potential applications, including flexible, implantable, and wearable antennas, electronics, and sensors," Lewis said.


'/>"/>

Contact: Jennifer A. Lewis
jalewis@illinois.edu
217-244-4973
University of Illinois College of Engineering
Source:Eurekalert  

Page: 1 2

Related biology technology :

1. Printing New Organs: Foundation Funds Medical Technology That Replicates Human Tissue
2. Protein-printing technique gives snapshots of immune system defense
3. Cellular Dynamics International Scientists Report on Efficient Method to Produce Footprint-Free Induced Pluripotent Stem Cells (iPSCs) Under Feeder-Free Conditions
4. Penn physicists develop scalable method for making graphene
5. Stretched rubber offers simpler method for assembling nanowires
6. Quanterix Announces Publication of Novel Method Expanding Single Molecule Detection Capability
7. BD Expands Industrial Microbiology Rapid Methods Portfolio
8. Leading Scientific Laboratory Offers New Methods for Metals Testing
9. New Method of Nutrition to Permanently Protect Brain Cells from Genetic Damage
10. Robust methods for GMO detection ready at hand
11. New methods detect subtleties in human genomes repetitive landscapes
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
3-D printing method advances electrically small antenna design
(Date:7/25/2014)... -- Trillions of bacteria live in each person,s digestive ... digest food and stave off harmful infections, but their ... To help shed light on the role of these ... professor Eric Alm recently tracked fluctuations in the bacterial ... The findings, described in the July 25 issue of ...
(Date:7/25/2014)... July 25, 2014 The Conferee Networking ... Topics for Conferee Networking. These two-hour sessions provide a ... meet and resolve problems, discuss new techniques, or brainstorm ... to submit a topic for consideration is August 31, ... . The Conferee Networking committee will review the topics, ...
(Date:7/25/2014)... Sinovac Biotech Ltd. (Nasdaq: SVA ), ... , today announced that it will release its unaudited ... after market close on Thursday, August 14, 2014 EDT. The ... opening on Friday, August 15, 2014, at 8:00 a.m. EDT ... to review the Company,s financial results and provide an update ...
(Date:7/24/2014)... 2014  Asterias Biotherapeutics, Inc. (OTCBB: ASTYV), a ... regenerative medicine, announced today that it will host ... on Tuesday, July 29, 2014, at 4:30 p.m. ... an overview of Asterias, business strategy and product ... http://www.ustream.tv/channel/asterias-biotherapeutics at least 15 minutes before the ...
Breaking Biology Technology:Monitoring the rise and fall of the microbiome 2Monitoring the rise and fall of the microbiome 3Pittcon 2015 Announces Call for Topics for Conferee Networking Sessions 2Sinovac to Host Conference Call to Report Second Quarter 2014 Unaudited Financial Results 2Asterias Biotherapeutics Announces Live Investor Webcast 2Asterias Biotherapeutics Announces Live Investor Webcast 3Asterias Biotherapeutics Announces Live Investor Webcast 4
...  Amgen (NASDAQ: AMGN ) today announced that it ... results on Thursday, Jan. 26, 2012 after the close of ... conference call with the investment community at 2:00 p.m. Pacific ... Kevin Sharer, chairman and chief executive officer, and other members ...
... SPO Medical Inc. ( SPOM ), a ... in portable monitoring devices, announced today an update to ... strategy for fiscal 2012 primarily based on the completion ... consumer wellness devices. SPO currently has three ...
... team have shown that they can prevent, or even reverse, ... dogs. The disease in humans and dogs is caused ... severe and progressive vision loss. It is one of the ... "Every single abnormal feature that defines the disease in ...
Cached Biology Technology:Amgen Announces Webcast of 2011 Fourth Quarter and Full Year Financial Results 2SPO Updates Shareholders on 2012 Corporate Strategy 2SPO Updates Shareholders on 2012 Corporate Strategy 3Gene therapy research from Penn Vet & Scheie Eye Inst. cures retinitis pigmentosa in dogs 2Gene therapy research from Penn Vet & Scheie Eye Inst. cures retinitis pigmentosa in dogs 3
(Date:7/27/2014)... -- Microorganisms like bacteria and fungi can evade treatment ... or antifungal drugs. These permanent mutations were once thought ... evolve. Now a new study has shown that microorganisms ... known as epimutations -- to gain the benefits of ... mechanism was discovered in a fungus called Mucor circinelloides, ...
(Date:7/27/2014)... data from over 18,000 patients, scientists have identified ... in Parkinson,s disease, including six that had not ... Nature Genetics , was partially funded by the ... scientists working in NIH laboratories. , "Unraveling the ... the multiple mechanisms involved in this complex disease, ...
(Date:7/25/2014)... and some of the smoke from those fires is drifting ... the Moderate Resolution Imaging Spectroradiometer (MODIS) aboard the Aqua satellite ... over the Great Lakes region of the United States. ... 23, 2014 (first image feature highlighted below) clearly shows the ... In the image, it is over Manitoba and parts ...
Breaking Biology News(10 mins):Scientists discover new, noncommittal mechanism of drug resistance 2Scientists discover new, noncommittal mechanism of drug resistance 3NIH scientists find 6 new genetic risk factors for Parkinson's 2
... relatively new phenomenon in shopping, digital coupons show great ... and usability of a specific type of electronic coupon ... team has found some interesting and important preliminary findings ... used them, why they used them and what problems ...
... of Pennsylvania say that species are still accumulating on ... past. In the study, published in the journal ... computational approach to infer the dynamics of species diversification ... nine patterns of diversification as alternative models, they examined ...
... This release is available in Spanish . ... known as hardening of the arteries, according to results ... with laboratory mice. The research provides the first direct ... lesions, symptomatic of atherosclerosis, from increasing in size in ...
Cached Biology News:Impending death for paper coupons? 2Impending death for paper coupons? 3Penn biologists say species accumulate on Earth at slower rates than in the past 2Blueberries help fight artery hardening, lab animal study indicates 2
... N. Fernandez and G. Butcher (1998). ... subject of much research in the immunology ... structure of MHC proteins and in their ... are now faced with the prospect of ...
DALT GRADIENT MAKER,230V, 1 EA. Category: 2D DALT Systems....
actin from rabbit muscle Cell Biology Cytoskeletal Probes Actin and Actin Probes...
Rat whole blood (Sprague-Dawley, averaging 7-8 weeks of age, either sex) is collected at the time of slaughter and refrigerated within 6 hours, and processed and frozen within 24 hours. The serum is ...
Biology Products: