Navigation Links
Columbia engineers make world's smallest FM radio transmitter
Date:11/18/2013

'stretchability' to tune the output frequency of their custom oscillator, creating a nanomechanical version of an electronic component known as a voltage controlled oscillator (VCO). With a VCO, explains Hone, it is easy to generate a frequency-modulated (FM) signal, exactly what is used for FM radio broadcasting. The team built a graphene NEMS whose frequency was about 100 megahertz, which lies right in the middle of the FM radio band (87.7 to 108 MHz). They used low-frequency musical signals (both pure tones and songs from an iPhone) to modulate the 100 MHz carrier signal from the graphene, and then retrieved the musical signals again using an ordinary FM radio receiver.

"This device is by far the smallest system that can create such FM signals," says Hone.

While graphene NEMS will not be used to replace conventional radio transmitters, they have many applications in wireless signal processing. Explains Shepard, "Due to the continuous shrinking of electrical circuits known as 'Moore's Law', today's cell phones have more computing power than systems that used to occupy entire rooms. However, some types of devices, particularly those involved in creating and processing radio-frequency signals, are much harder to miniaturize. These 'off-chip' components take up a lot of space and electrical power. In addition, most of these components cannot be easily tuned in frequency, requiring multiple copies to cover the range of frequencies used for wireless communication."

Graphene NEMS can address both problems: they are very compact and easily integrated with other types of electronics, and their frequency can be tuned over a wide range because of graphene's tremendous mechanical strength.

"There is a long way to go toward actual applications in this area," notes Hone, "but this work is an important first step. We are excited to have demonstrated successfully how this wonder material can be used to achieve a practical technologi
'/>"/>

Contact: Holly Evarts
holly.evarts@columbia.edu
347-453-7408
Columbia University
Source:Eurekalert

Page: 1 2 3

Related biology technology :

1. Genia Technologies, Columbia University, and Harvard University Awarded $5.25 Million Grant from NIH to Accelerate the Development of NanoTag DNA Sequencing Technology
2. Dr. Szczepan Baran will be Presenting at the International Microsurgical Simulation Society at Columbia University in New York
3. Columbias Nursing School Launches "Keep It Clean for Kids" (KICK)
4. IEEE-USA & DuPont Will Lead 2014 U.S. Engineers Week Activities
5. Wayne State receives National Science Foundation grant for training future nanoengineers
6. Engineers fine-tune the sensitivity of nano-chemical sensor
7. Forget about leprechauns, engineers are catching rainbows
8. Cornell bioengineers discover the natural switch that controls spread of breast cancer cells
9. UT Arlington engineers working to prevent heat buildup within 3D integrated circuits
10. UCLA engineers develop new energy-efficient computer memory using magnetic materials
11. Engineers achieve longstanding goal of stable nanocrystalline metals
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/30/2014)... CA (PRWEB) October 30, 2014 ... today that they have manually curated public data source ... non profit customers. the data is now available ... curates and unifies public and internal data sources for ... and knowledge out of the data that becomes more ...
(Date:10/30/2014)... (PRWEB) October 30, 2014 Spartan Bioscience ... Spartan RX CYP2C19 System . It detects CYP2C19 genetic ... cheek swab. , The Spartan RX CYP2C19 System is ... has been approved in Canada. Due to the system’s ... may be used by healthcare professionals such as doctors, ...
(Date:10/30/2014)... Avure Technologies celebrates a year of success and ... its fleet of high volume High Pressure Processing (HPP) systems. ... return to PackExpo this year, which is where we first ... Jeff Williams, CEO at Avure. “Sales of the new Avure ... meeting the challenges of market demand for higher throughput. We ...
(Date:10/30/2014)... 2014 Isis Pharmaceuticals, Inc. (NASDAQ: ISIS ... will present a company overview at the Nomura Biotechnology Conference ... Boston, MA. A live ... & Media" section of the Company,s website, www.isispharm.com .  ... 48 hours and will be archived for a limited time. ...
Breaking Biology Technology:Rancho BioSciences Manually Curated TCGA Data Sets Available 2Health Canada approves first near-patient DNA test for personalized medicine 2Health Canada approves first near-patient DNA test for personalized medicine 3In High Demand: New High Pressure Processing (HPP) System with Maximum Throughput Drives Strong Sales 2In High Demand: New High Pressure Processing (HPP) System with Maximum Throughput Drives Strong Sales 3Isis Pharmaceuticals to Present at the Nomura Biotechnology Conference 2
... BRUNSWICK, N.J. and NANJING, China, Sept. 3 ,Acesys ... combining the drug discovery expertise and project management,capabilities ... chemistry resources and,favorable cost structure of Acesys in ... alliance will encompass all,aspects of medicinal chemistry for ...
... strategic planner for an organization in the filter industry? ... Are you part of a filter company looking ... the growth segments in the filter and filtration markets. ... Place in Charlotte, NC, the American Filtration and Separations ...
... HOBOKEN, N.J. - Dr. Yong Shi of Stevens ... grant for his project titled "MEMS Umbrella-Shaped Actuator ... was approved on scientific/technical merit for three years ... the research is to design, fabricate and test ...
Cached Biology Technology:Acesys and Provid Announce Alliance for Medicinal Chemistry Services 2Filter Markets - Discover the Growth Segments 2Filter Markets - Discover the Growth Segments 3Dr. Yong Shi awarded NSF grant 2
(Date:10/31/2014)... Bugnyar and his team have been studying the ... Northern Austrian Alps for years. They observed that ... as grooming and playing. However, they also observed ... a third individual. Although in about 50 % ... broke up the two affiliating ravens, intervening can ...
(Date:10/30/2014)... When most animals begin life, cells immediately begin accepting ... organ. However, mammals, including humans, are special. The cells ... choice – to become the protective placenta or to ... critical first step that research from Michigan State University ... current issue of PLOS Genetics , ...
(Date:10/30/2014)... developed a suite of technologies that can be used ... applications in everything from search and rescue to service ... platform for computer-mediated communication between humans and dogs that ... behavioral signals and sending them clear and unambiguous cues ... of computer science at NC State and co-lead author ...
Breaking Biology News(10 mins):Identifying the source of stem cells 2New tech aims to improve communication between dogs and humans 2
... release is available in Spanish . ... However, human nutrition researchers agree that many questions remain about ... Studies led by Agricultural Research Service (ARS) molecular biologist Daniel ... Certain kinds of inflammation can increase risk of cancer ...
... is available in Spanish . Researchers ... the Clinical Hospital San Cecilio and the University Rey Juan ... patients with tension headache improves within 24 hours after receiving ... an increasing incidence in the population. This type of disorder ...
... The ,Geographic Chemicals in Groundwaters and Soils, event ... Marie Curie Research Training Network. This network, coordinated ... to highlight the environmental effect including the effect ... in groundwater and soils. Held today and tomorrow ...
Cached Biology News:Luteolin stars in study of healthful plant compounds 2University of Manchester academics at international conference on geographic chemicals 2
...
Mouse monoclonal antibody raised against a partial recombinant ZNF155. NCBI Entrez Gene ID = ZNF155...
... are macroporous polystyrene beads for hydrophobic interaction ... for adsorbing organics of molecular weight less ... are useful for the adsorption of nonpolar ... the removal of detergents such as Triton ...
... Immunogen : Fusion protein corresponding ... of human Mi-2 Formulation: 0.7M ... 0.035% sodium azide, containing 30% ... by immunoblot on Hela nuclear ...
Biology Products: