Scientists use Graphene to build world’s smallest FM radio transmitter
Zee Media Bureau
New Delhi: Graphene has been used by US researchers to create the world’s smallest FM radio transmitter, a nano-mechanical system that can create FM signals.
Taking advantage of graphene’s special properties ( its mechanical strength and electrical conduction ) researchers from Columbia University led by James Hone have achieved this feat.
“This work is significant in that it demonstrates an application of graphene that cannot be achieved using conventional materials,” Prof. Hone said.
He further added “And it’s an important first step in advancing wireless signal processing and designing ultrathin, efficient cell phones. Our devices are much smaller than any other sources of radio signals, and can be put on the same chip that’s used for data processing,” Prof. Hone added.
The team used graphene’s mechanical ‘stretchability’ to tune the output frequency of their custom oscillator, creating a nano-mechanical version of an electronic component known as a voltage controlled oscillator that is used to create a FM signal. They again used it to make a NEMS device with a frequency of about 100 Mhz (FM radio uses 87.7 to 108 Mhz). Low-frequency music signals from an iPhone were used to module the carrier signal.
“This device is by far the smallest system that can create such FM signals,” said Prof. Hone.
- NHRC issues notice to Rajasthan government over death of 11 children in home
- Delhi: 10-year-old boy dies due to overdose of Vitamin D
- Haryana: Groom injured in celebratory firing at wedding in Hissar
- Phase V of West Bengal Assembly polls starts today
- Discussion over Mamata Banerjee's close aide Firhad Hakim's 'mini Pakistan' comment
- Telangana SSC class 10th Results 2016 is likely to be declared on May 5
- West Bengal Assembly Elections: Polling begins in crucial fifth phase, 680 central forces companies deployed
- Severe heat wave condition in West Bengal
- Kerela HSE (Class 12) Result 2016 is likely to be declared by second week of May
- No instances of incursions by Chinese troops into Indian territory: Manohar Parrikar