What is an antenna nanotrubiny?

carbon nanotubes are small cylindrical carbon tubes, the structure of which is as a small length of graphite (monomolecular carbon layer) has been horizontally rolled and smoothly sealed. In their volumetric properties, much stronger than graphite can be 100 times stronger than steel and ten times lighter. Chemical links between atoms in nanotubesis are similar to the graphite bonds that are the strongest in nature. They have a number of interesting properties - excellent electron transporters, efficient heat conductors and extraordinary strength and flexibility.

One of the many possible applications for the nanotubes researched is the possibility of nanotruby antenna. Antenna is an object that can pick up electromagnetic waves and convert them to electrical signals or vice versa. The antenna is the most important part of any wireless transmission or receiving device - it cannot work without one.

We can see progress in the development of antennas by looking at the approximate size of the smallest radio. In 1931, he foldedThe dawn of the radio era, people used vacuum tubes. You fit on a table or table. In 1954, people started using transistor radios that could be held in the palm. For many decades it was about as small as radios got. In 2002, there was an experimental step forward with radio "intelligent dust" of sensors. They were a few millimeters wide. Then, in 2007, Berkeley developed the antenna and nanotubičky radio, only a micrometer long and several dozen nanometers wide.

Since the carbon nanotubes were first paid to the main attention in the early 90s. Scientists have been calculating how they could be used for nanotubes antenna. These calculations became a reality at the beginning of 2000, when scientists created nanotubery antennas or nanotubička, which could serve as an antenna nanotubic for light, microwaves and radio. Changing the dimensions of nanotubic or nanotubic fields can scientists make antennas that pick up noBo transmits a wide range of electromagnetic signals.

Although carbon nanotubes have not yet been introduced as active elements in any electronic devices, nanotruby antennas could find their way to mobile phones and radios in the near future. Their extremely small size helps along with the process of miniaturization and their own strength is resistant to shock damage. In the longer term, nanotubular antennas can be useful for providing signals distributed to nanobotes, perhaps even medical nanobotes that have rooted the human body.