Conference: Prototype of Terahertz Communications at 300 GHz: Devices, Packages

HO-JIN-SONG_Pohang_University_of_Science_and_Technology-POSTECH

Dr. HO-JIN SONG, Pohang University of Science and Technology (POSTECH)

Tuesday 5 April at 10.30 am

Conference 10:30
Anfiteather - IEMN-LCI Institut d'Electronique, de Microélectronique et de Nanotechnologie U.M.R C.N.R.S 8520 - Laboratoire Central - Cité Scientifique - Avenue Poincaré - CS 60069 - 59652 VILLENEUVE D'ASCQ CEDEX

Speakers

Pohang-University-of-Science-and-Technology_logo

Thanks to the significant advances made in wireless communications technologies over the last couple of decades, radio communications systems are now being used to deliver not only simple text or voice messages but also multimedia information and real-time streaming of video through the internet anytime and anywhere. However, the steady progress cannot fulfill the recent needs from both industry and end-users. Many leaders of industry are expecting new applications, such as virtual reality, a tactile internet, connected cars, remote surgery, and the internet of everything, that would cause a paradigm shift in key industries. The requirements for such applications include higher throughputs to deliver or collect huge amounts of information from all intelligent things, low latency to maintain mission critical even through wireless networks, and the capability of massive connectivity. The most straightforward way to satisfy these requirements is to provide more spectral bandwidth, which is the most fundamental resource in wireless communications. In recent discussions of the 5G system, there has been a strong consensus among the parties to deploy millimeter-wave radio access technology, which is expected to offer an order of magnitude larger bandwidth at minimum. For further future applications, such as terabit connectivity or terabit wireless, even higher frequencies, in particular those above 275 GHz, which have never been discussed for any commercial use yet, are attracting increasing interest because of the huge spectral area. The available bandwidth in the THz region is definitely much wider than the entire spectral resources utilized for all wireless systems on this planet.
Recent progress in semiconductor devices on compound semiconductor or silicon substrates has made it possible to produce more power and receive a signal with less noise at THz frequencies. Various integrated circuits for the THz radio front-end functional blocks, including power and low-noise amplifiers, modulators and demodulators, and oscillators, have been demonstrated in the last decade. In the first experimental demonstration conducted in 2004, bulky instruments originally developed for THz spectroscopy were used to transmit pulsed THz signals carrying a 7-kHz bandwidth audio signal across a short free space. However, recently, there have been several successful demonstrations of multi-Gbps data transmissions at THz frequencies with state-of-the art devices and components.

In this talk, the first prototype of a THz wireless communications system designed under the 'touch-and-go' scenario will be presented. I clarify the concept of the KIOSK data downloading system, cover some considerations in this work, and present a brief link-budget plan. We will then overview technologies for implementing THz components operating at 300 GHz and their performance, followed by preliminary investigation of the channel responses and the experimental demonstration results.

Innovation Tuesdays: The global challenge of energy storage for the future of the Internet of Things, alternative energies and mobility

Tuesday 20th March 2018

Welcome 18:00 - Conference 18:30 - 20:30
CNRS, 3 rue Michel-Ange, 75016 Paris

Energy storage technologies are at the heart of a major global challenge. The future of many innovations is linked to major advances in compact storage capacity and rapid battery recharging (cars and all other forms of mobility, including smartphones). As the major alternative energies (wind and solar) are not continuous, their effectiveness in future networks is also linked to improvements in electricity storage. As for the gigantic world of connected objects in the offing, this will require miniaturised batteries with very long lifetimes without recharging. While lithium is currently the leading material, with a wide range of combinations, other materials and alternative technologies such as fuel cells are making rapid progress. A journey to the heart of global competition, from advanced research into battery efficiency and recycling to access to materials, leading to a global industrial battle currently dominated by Asia.

Speakers

  • François BARSACQCEO, EasyLi, designer and manufacturer of energy storage solutions
  • Patrice SIMONElectrochemical Energy Storage Network, RS2E
  • Christophe LETHIENInstitute of Electronics, Microelectronics and Nanotechnology , IEMNUniversity of Lille, CNRS
  • Nicolas LECLERE, Head of the Electric Powertrain Innovation Division, PSA Group