Rohde & Schwarz presents photonics-based tunable THz system for 6G

Munich – Rohde & Schwarz is demonstrating the proof-of-concept for a photonics-based terahertz (THz) system at the European Microwave Week (EuMW 2024) in Paris. This system is intended for wireless data transmission in future 6G networks, operating at frequencies exceeding 500 GHz.

The development stems from the 6G-ADLANTIK project, coordinated by Rohde & Schwarz with funding from the German Federal Ministry of Education and Research (BMBF). The project involves partners such as TOPTICA Photonics AG and Fraunhofer Institute, focusing on developing components for the THz frequency range based on photonic and electronic integration. These components are envisioned for use in 6G communications, as well as sensing and imaging applications.

The system utilizes a photonic THz mixer that leverages frequency comb technology. A photodiode converts an optical beat signal from lasers into an electrical signal, which is then radiated as a THz wave by an antenna. This approach allows for wide tunability and high signal quality, crucial for the high data rates expected in 6G. Rohde & Schwarz provides test equipment for the project, including its R&S®SFI100A wideband IF vector signal generator and R&S®RTP oscilloscope.

While initial 6G networks are expected around 2030, utilizing frequency bands like 7-24 GHz, the sub-THz range up to 300 GHz will be essential for realizing applications such as immersive virtual and augmented reality (VR/AR). Rohde & Schwarz is exhibiting this demonstration at EuMW 2024 in Paris from September 24 to 26.