»T-KOS« – Terahertz Technologies for Communication and Sensor Technology

BMBF Project »T-KOS«: Terahertz Technology for Reliable Communication

Taking part in a virtual meeting while traveling by train – no problem if there are no gaps in the mobile network. Working remotely underscores the importance of stable data connections. This applies equally to industrial production, which is relying more and more on networked components.  The project is funded by the German Federal Ministry of Education and Research (BMBF).

The »T-KOS« project of the Forschungsfabrik Mikroelektronik Deutschland (FMD) is now opening up terahertz technology synergetically for the first time in the fields of communication and sensor technology for industry. Innovative system solutions in both areas make a decisive contribution to the successful implementation of future social issues such as digitalization, Industry 4.0 or resource efficiency.

Our team from the department »Materials Characterization and Testing« department is significantly involved in the »T-KOS« development goals of component and system design, data acquisition and evaluation, and their integration into the demonstrators for terahertz imaging testing.

In Cooperation to Compact System Concepts

»T-KOS« is a joint project of Forschungsfabrik Mikroelektronik Deutschland and Fraunhofer ITWM. It bundles the commitment of ten cooperation partners. The researchers are developing demonstrators for wireless communication with high bit rates and industrial measurement technology based on high-frequency electronics and terahertz photonics. One promising way to increase data capacity at carrier frequencies above 100 GHz is terahertz radio technology. The higher the carrier frequency, the greater the usable bandwidth and thus the data capacity. This means that smaller antenna elements are needed and compact radio systems can be implemented with a large number of active antennas. This is an advantage that also benefits industrial terahertz measurement technology, which is used for imaging inspection.

Demonstrators for Imaging Terahertz Testing

»Electronic and photonic system concepts in the terahertz range are conceptually close to each other,« says Dr. Fabian Friederich, coordinator of the T-KOS activities at Fraunhofer ITWM. »Thanks to our expertise and our good laboratory equipment, we can realize demonstrators for both technology branches in Kaiserslautern for imaging terahertz testing in production processes.« While the fully electronic demonstrator aims at industrially suitable inline measurement technology with millimeter resolution at the production line, the photonic concept serves as a research platform for future developments towards higher frequencies and improved resolution.

Goals of the Project

  • Building a German value chain for new 6G terahertz wireless solutions with user transmission rates of at least 100 Gbit/s.
  • Inline monitoring of production processes with AI-based, real-time imaging processing for resource-efficient production
  • Combination of scalable electronic and photonic concepts for industrial-grade solutions
A terahertz hand-held scanner.
© Fraunhofer ITWM
A terahertz hand-held scanner.

Exploit Synergies to Enable Innovations

In the joint project »T-KOS«, which started on May 1, 2021, a total of nine cooperation partners of FMD are working together with Fraunhofer ITWM to synergistically develop terahertz technology for wireless radio transmission, non-destructive testing technology, spectroscopy, and non-contact inline measurement technology. For this purpose, the technological competences for communication and sensor technology distributed in the FMD will be combined and extended by know-how in the field of signal processing in order to be able to offer innovative system solutions to industrial customers. During the one-year project period, various demonstrators will be developed that address the future fields of high-frequency electronics, terahertz photonics and wireless, high-bit-rate communication.

Dr. Dirk Nüßler, project leader and deputy institute director of Fraunhofer FHR, explains, »The overall project goals are to establish a German value chain to terahertz wireless links, e.g., for high-bit-rate communication in industrial production, inline monitoring of production processes with AI-based, real-time imaging processing for resource-efficient production, and first-of-its-kind industrial-grade terahertz communication and sensor technology by combining scalable electronic and photonic concepts.«

To achieve these project goals, the project is organized along three parallel development strands that are interconnected at key points. »For the development strands terahertz photonics, terahertz line scan camera and terahertz communication, various demonstrators can be realized within the comparatively short project duration of 12 months that go far beyond the current state of the art,« explains Prof. Björn Globisch, group leader at Fraunhofer HHI and professor for »Terahertz Sensor Technology« at the Technical University of Berlin. Dr. Andreas Grimm, Technology Park Manager for Compound Semiconductors at FMD concludes: »The existing collaboration within FMD has been the basis for the project development, so we are delighted that the BMBF funding will give us the opportunity for the first time to leverage the synergies of terahertz technology and make an offer to industry for various applications.«

Goals of the Project

  • Establishment of a German value chain for new 6G terahertz radio solutions with user transmission rates of at least 100 Gbit/s
  • Inline monitoring of production processes with AI-based, real-time imaging processing for resource-efficient production
  • Combination of scalable electronic and photonic concepts for industrial-grade solutions

Project Duration and Funding:

The project is scheduled to run for 15 months (05.2021 to 08.2022) and is funded by the German Federal Ministry of Education and Research (BMBF). The total project volume is 29 million euros (87.1 percent is funded by the BMBF).