Smallest FM Radio Transmitter

Monday, November 18, 2013

Nano-Transmitter

Scientists from Columbia University have used graphene to create the world’s smallest system that can produce FM (Frequency Modulated) signals.

During the study, the team made use of graphene’s high mechanical ‘stretchability’ to tune the output frequency of their custom made oscillator to create a nanomechanical version of an electronic component known as a voltage controlled oscillator, which makes it easy to generate FM signal. The frequency of the signal was about 100 megahertz, which is right in between the standard 87.7-108 MHz.

Researchers used low frequency musical signals to modulate the 100 MHz carrier signal from the graphene and then retrieved the same using an ordinary FM radio receiver. Although, the nanomechanical system wouldn’t replace conventional radio systems, the use of graphene, the strongest material known to man, with electrical properties superior to the silicon would reduce chips’ size can and increase its strength.

 


The most wonderful and precious element of universe is the human life which can only be guided by the right knowledge and right attitude. So, here is an ocean of knowledge, both in English and Hindi encompassing every detail and each facet of human life which ‘one must know’ in order to grow and attain the summits of success. A team of around 200 dedicated members is working ceaselessly to turn such a colossal dream into reality. We are confident that this portal will help bring change in people across the world.

Content creation, research, development and execution done in-house at Aatman Innovations.