The deliverable “D5.1 Report on preliminary THz RF-Frontend and Antenna, Phased array beamforming, baseband algorithms and optical RF-frontend ready for implementation in offline tests” is the first of a series of three deliverables that accompany the research and development work on the “THz System Technologies” of TERRANOVA. There are two overall objectives in work package WP5. Firstly, research towards new software and hardware components that address the peculiarities and challenges of hybrid optical-THz communication systems. Secondly, practically implementing and providing components for the integration in the two system demonstrators of WP6 (“THz Demonstrator Implementation and Validation”). With the first demonstrator, beamforming algorithms and concepts will be tested and validated. With the second demonstrator, the capacity bounds of a hybrid optical-THz communication link will be experimentally explored. Different usecase scenarios and suitable system architecture candidates for each scenario were identified as part of deliverable D2.1 (“TERRANOVA System Requirements” and D2.2 (“TERRANOVA System Architecture”). The system component design and implementation may reveal challenges that were not anticipated during the early system concept phase of the project. There are also open questions on what performance the THz system components can achieve today and in future.
The design of preliminary THz system components means in the context of D5.1 that designs “ready for implementation in off-line tests” are presented or in other words the technology concept of the components is formulated. At this stage, the major hardware components of interest are the hybrid optical-electrical interface, the THz Rx/Tx frontend at chip level and the antenna. They define all together the optical-THz frontend for which also an integration platform and future packaging strategies will be outlined in the course of the project. The major software components are the baseband modem and beamforming algorithms. The formulation of the hardware concepts is documented by a first set of prototype designs “ready for implementation” which means ready for fabrication. Offline tests mean that the algorithms can be tested in a simulation environment with artificial data or experimentally recorded datasets. The successive deliverables D5.2 and D5.3 will provide proof of the component concepts in a lab environment. This means that the functioning of the hardware components will be experimentally tested and software components will be ready for the implementation in a real-time environment. In WP6, the THz system components of WP5 will be integrated for demonstration of the TERRANOVA system concepts and the validation of the technologies.
The main objectives of the deliverable are to progress in:
• Development of a high level hybrid optical-THz wireless modem architecture, and identification of the required key algorithms for point-to-point transmission;
• Identification of concepts for Rx/Tx frontends and the design of integrated circuit prototypes of the top candidates;
• Methods for beamforming and calibration of THz Rx/Tx antenna arrays for future use in line-of-sight beamforming schemes with pre-defined codebooks, and
• Top-down design of the TERRANOVA media converter for the hybrid optical-THz link, and identification of electro-optical THz frontend integration and packaging solutions.
Download the PDF here: TERRANOVA_D5.1