5G – NECTEC : National Electronics and Computer Technology Center

Technical Seminar Series: 5G and Beyond | Reflectarrays: A good candidate for advance antennas in mmWave 5G networks and beyond

Sasiwipar Hasuk — Fri, 21 Jan 2022 04:07:14 +0000

Abstract

The new generations of mobile systems (5G, Beyond 5G and 6G) are boosting the use of higher frequency bands at the millimeter-wave spectrum to provide broadband wireless access in cellular networks and satisfy the growing demand for high-speed data transmission. One of the challenges of millimeter-wave communications is related to signal propagation conditions, which are more adverse than in the traditional sub-6 GHz bands. Reflectarray technology has a great potential to be applied to the design of advance antennas and intelligent reflective surfaces to improve connectivity in millimeter-wave 5G networks, solving the coverage problems caused by millimeter-wave propagation.

A reflectarray antenna consists of a planar array of reflecting cells, typically implemented in printed circuit technology, which are illuminated by a primary feed. Reflectarrays do not require feeding or beamforming networks, so they achieve a significant reduction in ohmic losses, fabrication complexity and cost with respect to array antennas. Compared to conventional metallic reflectors, reflectarrays are able to provide independent operation at different frequency bands, to generate independent beams in orthogonal polarizations, and to implement beam reconfigurability when switching devices (PIN diodes, varactors, etc.) are integrated in their cells.

About Speaker

Eduardo Martinez-de-Rioja received the M.Sc. and Ph.D. degrees in Telecommunications Engineering from the Polytechnic University of Madrid (UPM), Spain, in 2014 and 2018, respectively. He developed his PhD thesis within the Applied Electromagnetics Group at UPM, under the supervision of Prof. Jose A. Encinar. In 2016, he was a visiting PhD student at the Electrical and Computer Engineering Department, University of Toronto, Canada. Since 2019, he is an Assistant Professor at the Universidad Rey Juan Carlos (Madrid, Spain). His research interests are related to the design of reflectarrays, frequency selective surfaces and other planar periodic structures for dual-band, dual-polarization and multibeam antennas, with application to satellite communications and millimeter-wave 5G.

Technical Seminar Series: 5G and Beyond | Reflectarrays: A good candidate for advance antennas in mmWave 5G networks and beyond

Venue: Virtual
Date: Thu 27th Jan 2022
Time: 15.00-16.00
Registration: https://bit.ly/EMartinezdeRioja

NECTEC partners with Daisin and DTAC to supercharge the auto parts industry using 5G technology

Sasiwipar Hasuk — Wed, 22 Dec 2021 05:50:15 +0000

December 22, 2021 – Daisin is one of Thailand’s leading publicly-held aluminum vehicle parts manufacturers and in the Top Ten of production capacity in Thailand. With a sales volume of approximately THB 6 billion per year, 52% of Daisin’s income comes from the motorcycle parts industry, 36% from the auto parts industry, and another 8% from parts production for other industries such as agricultural engines, and multipurpose engines.

For more than 42 years, Daisin has manufactured parts essential to both domestic and overseas customers, creating stability for the Thailand industrial sector by championing international quality standards.

Mr. Thanin Leegomonchai, President of Daisin Co., Ltd. stated, “As a manufacturer of auto parts for over 42 years leading up to the current COVID-19 crisis, we’ve now seen the importance of technology and automation that has led us to adapt with ‘Smart’ factories.”

“This cooperation between NECTEC NSTDA and DTAC is our first step in utilizing 5G to eliminate pain points in the manufacturing process. AGVs (Automated Guided Vehicles), can deliver parts during the production process, but cannot be accurately controlled. Specifically, keeping track of their location manually by staffs causes a loss of production time. This presents extra costs in transporting parts within the factory. It’s important to work this out because it can also present a danger from improper transportation”, Mr. Thanin said.

At the heart of the production process, Daisin has AGVs, or part transportation, that can be routed, then stopped by magnetic strips, but are limited to this activity. It has an adverse effect on production targets. If you want a real-time tracking system which increases map routing accuracy in delivery, the traditional AGV can no longer meet these production process requirements. This is especially true in the era of high competition with the need to reduce production-to-market times. Innovation will reduce costs, especially with accelerated production during the epidemic crisis when we need to make use the most of digital platforms and 5G.

Therefore, a 5G solution that can transmit and receive accurate data in real-time will meet the needs of smart factories with automatic controls and sensors using the Internet of Things (IoT) format. This can be developed to communicate with other IoTs and can send data to the cloud to provide data analytics, fully supporting Big Data in a digital environment. Daisin’s AGVs will have a DTAC SIM installed to transmit 5G signals to the platform, precisely conveying parts to each production process. No time is wasted on surveillance tracking.

The location-tracking system used in this collaboration is the result of the LAI (Automatic Identification and Indication System) research team of NECTEC’s NSTDA, also known as the “UNAI”, or “Where are You” platform. This has been incorporated to send AGV’s current location and status information through DTAC’s 5G network to the platform’s servers. An Internet of Things (IoT) network uses AGV electronic devices to link or transmit data via 5G. This enables the Daisin team to optimize the use of AGVs and to use the data to determine the number of cycles running in the production process via DTAC’s 5G network.

Dr. Panita Pongpaibool, Deputy Executive Director at the National Electronics and Computer Technology Centre (NECTEC NSTDA) said, “We recognize the importance of 5G network technology as a potential tool to drive Thai industry to be more competitive. We see the country’s industrial sector as needing to adapt to the Industrial Age 4.0. Otherwise, it will not be possible to compete on the world stage. Digital technologies such as 5G, the Internet of Things, Big Data, and Artificial Intelligence must be introduced at the very beginning.”

“Entrepreneurs may not be confident in investing in technology, so NECTEC NSTDA joins with partners such as dtac to support operations to demonstrate the benefits and value of investing in technology. Hopefully, this will have an impact on factories in similar industries. For budgets used in conducting 5G use case trials for a smart factory, NECTEC NSTDA is supported by the Broadcasting and Telecommunications Research and Development Fund for Public Interest.”

Mr. Krit Prapatsakdi, Head of Enterprise Sales Division at Total Access Communication PLC or DTAC said that according to data from Krungsri Research, in 2021-2022 domestic automotive production is expected to recover with an average increase of 3-4% per year, in line with the global automotive manufacturing industry.

This partnership with Daisin and NECTEC NSTDA is to further 5G technology to go beyond leveraging the use of existing production machinery systems through network leadership to using real-time data and developing it through the use of artificial intelligence. With the use of 5G technology to help manage huge amounts of data in analytics, this leads to innovation in business and economic development like never before. In this 5G use case, dtac has the opportunity to work with Daisin and NECTEC NSTDA in developing a prototype smart factory to facilitate the continued development of other factories in Thailand.

Technical Seminar Series: 5G and Beyond | THz communications for Beyond 5G

Walailak Kongprajan — Tue, 30 Nov 2021 16:09:21 +0000

Abstract

5G mobile networks can offer high-speed data transmission, low-latency data transfer and effective connection to many terminals, by the use of wideband radio spectra. Various types of transmission media including optical fibers, millimeter-wave links and THz links will be required to provide high-speed and low-latency wireless transmission for many terminals. To mitigate congestion of radio spectrum, traffic over microwave bands should be minimized by using seamless networks where waveforms for radio services to connect end-users are transferred over optical fibers, millimeter-waves, THz-waves, etc. This presentation describes recent research trends on the seamless networks comprised of high-speed wireless and wired links, as well as on sensing applications such as high-resolution radars for airport surveillance.

Speaker

Prof. Tetsuya Kawanishi, IEEE Fellow
Affiliation: NICT and Waseda University

Tetsuya Kawanishi received the B.E., M.E., and Ph.D. degrees in electronics from Kyoto University, Kyoto, Japan, in 1992, 1994, and 1997, respectively. From 1994 to 1995, he was with the Production Engineering Laboratory of Panasonic. During 1997, he was with the Venture Business Laboratory, Kyoto University, Kyoto, Japan, where he was engaged in research on electromagnetic scattering and near-field optics. In 1998, he joined the Communications Research Laboratory, Ministry of Posts and Telecommunications (now the National Institute of Information and Communications Technology), Tokyo, Japan. During 2004, he was a Visiting Scholar with the Department of Electrical and Computer Engineering, University of California at San Diego, San Diego, CA, USA. Since April 2015, he has been a Professor with Waseda University, Tokyo, Japan. His current research interests include high-speed optical modulators and RF photonics. He is the TG-FWS (task group on fixed wireless systems) in AWG (Asia Pacific telecommunity wireless group).

Technical Seminar Series: 5G and Beyond THz communications for Beyond 5G

Venue: Virtual

Date: Wed 8th Dec 2021

Time: 11.00-12.00

Registration: bit.ly/3rbZ0NG