Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

A nanosecond to make a decision

04.10.2002


The scientists at A.F. Ioffe Physical Technical Institute, Russian Academy of Sciences, decided to restore the production of semi-conductor devices for pulse radiotechniques which was interrupted at the beginning of the 1990s. These devices have recently found wide application in different areas of technology: in ultra broadband apparatuses of communication, geopositioning and following, radars where a signal of high power should be generated for short time intervals. The idea of creating the devices belongs to a group of scientists under the supervision of Kardo-Sysoev.



It is possible to transfer information using very short electrical pulses with the duration less than one nanosecond. The pause between the adjacent pulses is also very short and therefore the volume of information can be enormous. However, powerful transmitters are necessary to send these signals for distances more than 10-15 kilometers. The task has been solved at the laboratory of fast processes at A.F. Ioffe Physical Technical Institute, Russian Academy of Sciences, where a new class of diodes and transistors has been developed. Their combination in the scheme gives the necessary transmitter, the source of ultra short signals in ultra broadband range.

Industrial production of these devices does not exist anywhere in the world for a while but the appropriate market with a turnover of several billion dollars should appear very soon. Russian scientists have a great advantage over their partners from other countries because a significant and unique experience has been accumulated in Russia for many years. "Of course, our western colleagues will catch up with us but at the moment our technologies are more advanced and it pays to buy the devices for ultra broadband systems in Russia. - says Kardo-Sysoev - All the air ultra broadband radars of super high resolution in the USA use our devices."


In addition to the application in the sphere of communications St. Petersburg technology has other interesting uses. The devices can work in the locators with broad sphere of application because it covers broad radio range and if one frequency can not get through a material another one will be able to do it. Such a locator can work inside a building and see through the walls or define correctly the position and condition of underground communications. According to this principle ultra sensitive censors for security systems and the systems of determining coordinates and distances within the accuracy of a centimeter can be designed. The devices can also find an application in the systems for cleaning gases with pulse discharges where the voltage of tens of kilovolts and the electrical power of tens of megawatts are demanded.

Tatiana Pitchugina | Informnauka
Further information:
http://www.informnauka.ru/eng/2002/2002-10-03-02_218_e.htm

More articles from Physics and Astronomy:

nachricht A special elemental magic
28.05.2020 | Kyoto University

nachricht Elucidation of nanostructures in practical heterogeneous catalysts
28.05.2020 | Japan Advanced Institute of Science and Technology

All articles from Physics and Astronomy >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Biotechnology: Triggered by light, a novel way to switch on an enzyme

In living cells, enzymes drive biochemical metabolic processes enabling reactions to take place efficiently. It is this very ability which allows them to be used as catalysts in biotechnology, for example to create chemical products such as pharmaceutics. Researchers now identified an enzyme that, when illuminated with blue light, becomes catalytically active and initiates a reaction that was previously unknown in enzymatics. The study was published in "Nature Communications".

Enzymes: they are the central drivers for biochemical metabolic processes in every living cell, enabling reactions to take place efficiently. It is this very...

Im Focus: New double-contrast technique picks up small tumors on MRI

Early detection of tumors is extremely important in treating cancer. A new technique developed by researchers at the University of California, Davis offers a significant advance in using magnetic resonance imaging to pick out even very small tumors from normal tissue. The work is published May 25 in the journal Nature Nanotechnology.

researchers at the University of California, Davis offers a significant advance in using magnetic resonance imaging to pick out even very small tumors from...

Im Focus: I-call - When microimplants communicate with each other / Innovation driver digitization - "Smart Health“

Microelectronics as a key technology enables numerous innovations in the field of intelligent medical technology. The Fraunhofer Institute for Biomedical Engineering IBMT coordinates the BMBF cooperative project "I-call" realizing the first electronic system for ultrasound-based, safe and interference-resistant data transmission between implants in the human body.

When microelectronic systems are used for medical applications, they have to meet high requirements in terms of biocompatibility, reliability, energy...

Im Focus: When predictions of theoretical chemists become reality

Thomas Heine, Professor of Theoretical Chemistry at TU Dresden, together with his team, first predicted a topological 2D polymer in 2019. Only one year later, an international team led by Italian researchers was able to synthesize these materials and experimentally prove their topological properties. For the renowned journal Nature Materials, this was the occasion to invite Thomas Heine to a News and Views article, which was published this week. Under the title "Making 2D Topological Polymers a reality" Prof. Heine describes how his theory became a reality.

Ultrathin materials are extremely interesting as building blocks for next generation nano electronic devices, as it is much easier to make circuits and other...

Im Focus: Rolling into the deep

Scientists took a leukocyte as the blueprint and developed a microrobot that has the size, shape and moving capabilities of a white blood cell. Simulating a blood vessel in a laboratory setting, they succeeded in magnetically navigating the ball-shaped microroller through this dynamic and dense environment. The drug-delivery vehicle withstood the simulated blood flow, pushing the developments in targeted drug delivery a step further: inside the body, there is no better access route to all tissues and organs than the circulatory system. A robot that could actually travel through this finely woven web would revolutionize the minimally-invasive treatment of illnesses.

A team of scientists from the Max Planck Institute for Intelligent Systems (MPI-IS) in Stuttgart invented a tiny microrobot that resembles a white blood cell...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Dresden Nexus Conference 2020: Same Time, Virtual Format, Registration Opened

19.05.2020 | Event News

Aachen Machine Tool Colloquium AWK'21 will take place on June 10 and 11, 2021

07.04.2020 | Event News

International Coral Reef Symposium in Bremen Postponed by a Year

06.04.2020 | Event News

 
Latest News

German-British Research project for even more climate protection in the rail industry

28.05.2020 | Transportation and Logistics

A special elemental magic

28.05.2020 | Physics and Astronomy

Skoltech scientists get a sneak peek of a key process in battery 'life'

28.05.2020 | Power and Electrical Engineering

VideoLinks
Science & Research
Overview of more VideoLinks >>>