Towards Energy-Efficient Tbps Wireless Links

About

TeraGreen is an innovative Horizon Europe project focusing on energy-efficient wireless communications launched in January 2024 under the Smart Networks and Services Joint Undertaking (SNS JU). 

The project is coordinated by Technische Universiteit Delft in the Netherlands.

The project brings together experts from universities:

  • Delft University of Technology (Netherlands),
  • Chalmers University of Technology (Sweden),
  • Dresden University of Technology (Germany);

 

and from industry:

  • Infineon Technologies (Germany),
  • Ericsson (Sweden),
  • Hellenic Telecommunications Organisation (Greece).

Partners

Renowned for its engineering, technology, and applied sciences programs. It is a leader in innovative research, including sustainability and smart cities initiatives.

Renowned for its engineering, technology, and natural sciences programs. It is involved in cutting-edge research initiatives like the Swedish quantum computer and the Graphene Flagship project.

One of Germany’s largest technical universities, known for its strong research in engineering, natural sciences, and humanities.

Germany’s largest semiconductor manufacturer, specializing in automotive, industrial, and security solutions.

Leading Swedish multinational company providing mobile and fixed broadband networks, and is a pioneer in 5G technology.

Largest telecommunications provider in Greece, offering a full range of services including broadband, fixed and mobile telephony, and digital television.

Consortium

Advisory board

Delft University of Technology (TUDelft)

The Delft University of Technology has a dual role in the TeraGreen project. One on hand, TUDelft bring in technology and knowledge necessary to develop integrated antennas and quasi-optical systems at 300GHz. The TeraGreen projected will be hosted in The THz Sensing (TS) Group (http://terahertz.tudelft.nl/), located in the microelectronics department. The TS group develops cutting-edge technology for active and passive THz imaging systems in the area of space and security applications, as well as sub-THz technology for wireless communications. TUDelft will aslo provide access to the Earl McCune laboratory (https://terahertz.tudelft.nl/Facilities/) with state of the art measurement facilities up to 500GHz.

On the other hand, TUDelft as the project coordinator, is responsible for effective implementation of the SNS JU-funded research initiative. This comes down to overlooking the project progress and ensuring that activities are executed in line with the Description of Action, both from the scientific/technical perspective, and the non-scientist perspective (financial, legal, administrative, organisational).

Nuria Llombart

TUDelft

Scientific Coordinator

Marta Kluba

TUDelft

Project Coordinator

Maria Alonso-delPino

TUDelft

WP4 Leader

Marco SPIRITO

TUDelft

DEMO1 Leader

Daniele Cavallo

TUDelft

Associate Professor

Alexandros BECHRAKIS TRIANTAFYLLOS

TUDelft

PhD Candidate

Huasheng Zhang 

TUDelft

PhD Candidate

Chalmers University of Technology (CHALMERS)

CHALMERS contributes to TeraGreen with a long-standing expertise on design of sub-THz integrated circuits and subsystems. CHALMERS have demonstrated several links above 100Gbps in D-band (110-170 GHz) over a single lane in previous projects. In this project, CHALMERS will build on this expertise to design the TeraGreen front-end circuits.

CHALMERS also hosts Kollberg Laboratory—(https://www.chalmers.se/en/infrastructure/kollberg-laboratory/) — one of Europe’s most well-equipped academic labs for characterization of active components and circuits at THz frequencies—where the THz circuits and subsystems will be characterized under realistic operating conditions.

Herbert ZIRATH

CHALMESR

WP3 Leader

Frida Strömbeck

CHALMESR

Postdoc Researcher

Gregor LASSER

CHALMESR

Associate Professor

Vessen VASSILEV

CHALMESR

Reseracher

Marzieh Mollaalipouramiri

CHALMESR

PhD Candidate

Infineon Technologies (IFAG)

Infineon contributes to TeraGreen with one of the most advanced silicon processes in the world, their SiGe-BiCMOS technology node, with maximum oscillation frequency exceeding 500GHz and copper metallization for mm-wave analog and mixed signal applications. The further improvement of the design environment like PDK for the SiGe-BiCMOS technology will be assisted by feedback from circuit design and measurements for TeraGreen.

A further key feature in the TeraGreen project is a novel eWLB (embedded Wafer Level Ballgrid-array) packaging technology that exploits IFAG’s standard eWLB package. For TeraGreen the eWLB packaging technology will be seamlessly integrated with Infineon’s SiGe-BiCMOS PDK’s so that the design engineers can address the design challenges in a holistic approach, i.e. the circuit design will incorporate package parasitic as well as all external microwave passive components implemented in the package. IFAG is already investigating key elements implemented in THz packaging technologies based on eWLB, which are a valuable stepping stone for TeraGreen.

Infineon is the technology provider in WP3 and is manufacturing the chips, is updating the PDK based on inputs from circuit design measurements and is providing bare dice and packaged samples to the partners. 

As Work Package Lead of WP7, Infineon plays a crucial role in coordinating TeraGreen’s communication, dissemination and standardization activities.

Franz Dielacher

IFAG

Technical Coordinator

Iris DRUCKENBROD

IFAG

WP7 Leader

Klaus AUFINGER

IFAG

Senior Researcher

Maciej WOJNOWSKI

IFAG

Researcher

Mustafa DOGAN

IFAG

Researcher

Walter HARTNER

IFAG

Lead Principal Engineer

Anna LACKNER

IFAG

C&D Advisor

Ericsson (EAB)

As Work Package lead of WP6, Ericsson plays a central role in coordinating TeraGreen’s integration and demonstration activities, ensuring the project’s advanced THz research remains anchored in real-world communication system realities. Drawing on their deep expertise in baseband technologies, link budget analysis, and hands-on experience with point-to-point radio links, Ericsson monitors system-level design progress and helps identify and mitigate risks early, keeping demonstration activities aligned with practical deployment requirements for future 6G backhaul networks.

Ericsson contributes to defining relevant use cases for THz communication, providing the operational context that shapes the project’s demonstration targets and system design choices. Their link budget expertise is instrumental in assessing the feasibility of medium-range THz links, flagging potential design risks across the TX and RX chain before they impact demonstration outcomes.

Within Task 6.2, Ericsson co-hosts the outdoor point-to-point demonstration at 300 GHz at their facilities, supporting the validation of key performance metrics including EVM, BER, and SNR. By bridging cutting-edge academic research and deployable network solutions, Ericsson ensures TeraGreen’s innovations are shaped with scalability, energy efficiency, and real-world operability firmly in mind.

Sining AN

Ericsson

WP6 Leader

Martin Myhr

Ericsson

Lead Researcher

Dresden University of Technology

TU Dresden is responsible for the baseband design of the quasi-optical communication link. To circumvent the power consumption bottleneck of the analog-to-digital conversion (ADC) in wideband systems, TUD considers the use of receivers with temporally oversampled 1-bit quantization. Efficient communication using such receivers requires a suitable modulation scheme, a so called zero-crossing modulation. In this regard, TUD studies the design of optimized zero-crossing modulation schemes. Moreover, using 1-bit ADC requires a redesign of channel estimation and synchronization algorithms, which for the quasi-optical multiple-input multiple-output (MIMO) channel is pursued by TUD.

Meik DÖRPINGHAUS

TUDresedn

WP5 Leader

Gerhard FETTWEIS

TUDresden

Scientific Lead

Daniel SWIST

TUDresden

PhD Candidate

Florian MANN

TUDresden

PhD Candidate

Stephan ZEITZ

TUDresden

PhD Candidate

Organismos Tilepikinonion Ellados (OTE)

 

Maria Belesioti

OTE

WP2 Leader

External Experts Advisory Board

Goutam Chattopadhyay

NASA-Jet Propulsion Laboratory

Hikmet Sari

Nanjing University of Posts and Telecommunications

Reiner Stuhlfauth

Independent

Robert Weigel

Professor Emeritus at Friedrich-Alexander-Universität

Yannis Papananos

National Technical University of Athens

Konstantinos Filis

Independent, former OTE

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