ANTERRA: Antenna Systems Experts for 6G Non-Terrestrial Networks

Last week at IEEE SPAWC 2024 in Lucca, Italy, I had the opportunity to present our paper titled “Active Beam Training with Hierarchical Codebooks in Two-Dimensional Phased Arrays” as part of the MSCA project ANTERRA: Antenna Systems Experts for 6G Non-Terrestrial Networks. It was a great experience to share our work on hierarchical beamforming codebooks for millimeter-wave communications in non-terrestrial networks. The workshop was delightful, with plenty of inspiring talks and engaging discussions with other researchers in the field. Special thanks to my co-authors and supervisors, Ulf Gustavsson and Hamdi Joudeh, for their invaluable contributions and support. For more details, here is the link to the paper: https://lnkd.in/dpcaQfVA

Today we presented our work "Doppler Shift Estimation for Satellite Communications using Linear Estimators" at #SPAWC in the beautiful Lucca, Italy! In this paper, we develop a standalone estimation procedure to estimate Doppler shifts in Satellite-to-Ground transmissions using a series of Least Squares estimators with an increasing number of samples. Doppler shifts are an undesired effect that takes place in wireless signal transmission whenever there is relative movement between transmitter and receiver. In future communication generations, where low Earth orbit (LEO) satellites play a relevant role, such a phenomenon is expected to be strong with respect to satellites in higher altitudes, as LEO satellites travel at very high speeds. We initially study this problem and propose a simple signal model to develop a standalone multi-step Doppler estimation approach based on linear estimators. Simulation results show practically unbiased estimates with variances close to the Cramer-Rao lower bound even in low signal-to-noise ratio regimes, demonstrating the potential of this technique in future non-terrestrial network systems. I am very thankful for the support and great insights from my supervisors at Chalmers tekniska h?gskola and Ericsson, in the context of project ANTERRA: Antenna Systems Experts for 6G Non-Terrestrial Networks. I can't wait for the next developments in this field! Link to the paper: https://t.ly/Mqlsp

I’m proud to share with you that our article has been published in MDPI, as part of ANTERRA: Antenna Systems Experts for 6G Non-Terrestrial Networks project! ?? This paper presents an extensive performance analysis of open-ended waveguide elements for direct radiating array (DRA) antennas with high scanning angles, evaluating designs based on square and hexagonal apertures loaded with ridges to meet Ka-band downlink requirements for future LEO mega-constellations. ??? I couldn’t be more grateful for the contributions, support, and dedication of my collaborators, including my long-time colleague Roger Montoya Roca, and my supervisors Giuseppe Virone, Giuseppe Addamo, and oscar peverini. ?? Check out our paper! ??

?? I'm thrilled to share that I’m continuing my PhD journey with Thales Alenia Space in Rome, as part of the European project ANTERRA: Antenna Systems Experts for 6G Non-Terrestrial Networks together with my colleague Roger Montoya Roca ?? Diving deeper into the world of space telecommunications, I’m eager to contribute to this cutting-edge research that’s shaping the future of connectivity in space! ??? ?? I want to thank Davide Maiarelli and Giovanni Gasparro for trusting me with this incredible opportunity and for their unwavering support as I continue to grow professionally in this exciting field! ???? #ANTERRA #ThalesAleniaSpace #SpaceTelecommunications #Research

Happy to present our work "Phased Array Scan Performance Review for SATCOM: Dielectric Resonator vs. Patch Antennas" at IEEE APS/URSI 2024 Florence (IT). Our key findings include: 1. Increased scan range of wideband (>40%) arrays employing patch radiators compared to dielectric resonator antennas (DRAs) by using low permittivity materials. 2. Scan limitations in the DRA case are caused by the excitation of surface waves on the antenna surface, similar to arrays of patches or dipoles. 3. There exists a radiator profile-width trade-off in the DRA case; however, bandwidth and scan limitations remain almost constant. Many thanks to my coauthors and supervisors Artem Vilenskiy, Thomas Sch?fer, Marianna Ivashina, and Ahmed Kishk from Chalmers University of Technology and Satcube for their continued guidance and support. Also proud to aknowledge EU???? funding for this work as part of the ANTERRA: Antenna Systems Experts for 6G Non-Terrestrial Networks project. #PhasedArrays #SATCOM #ANTERRA

?? Excited to share highlights from the PNRR Fondazione RESTART Plenary Dissemination Meeting in Catania, Italy! ???? On July 5th, 2024, Giuseppe Virone introduced the European project ANTERRA. His presentation explored the cutting-edge Antenna Systems for Non-Terrestrial Networks ???, emphasizing the innovative subTHz feeder links ??. This conference served as a platform to present ANTERRA, a European project dedicated to driving innovation in NTN networks through the contributions of PhD students ????. Exciting times ahead! ?? ? #ANTERRA #PNRRRestart #AntennaSystems #NonTerrestrialNetworks #subTHz

On June 4th and 5th, we had the pleasure of holding the ANTERRA project meeting in the beautiful Italian city of Turin, organized and supported by CNR-IEIIT and Politecnico di Torino?????. ? During the morning of the first day, the PhD candidates worked together on a demonstrator, applying both the knowledge they have acquired since the start of the project and other transversal skills such as teamwork???. This collaboration showcased their dedication and continuous effort. ? In the afternoon of the first day and the morning of the second, the students presented their progress to supervisors and consortium members, highlighting the significant advancements in their research. It was inspiring to see the fruits of their hard work and commitment. ? Additionally, we had the honor of receiving a presentation from Christophe Craeye on the Horizon Europe project GLITTER, introducing us to synchronized constellations of CubeSats for GNSS-R applications???. We also enjoyed presentations from Roberto Garello and Gabriel Maiolini Capez of Politecnico di Torino on the use of Mega Constellation Services in Space Integrating LEO Platforms into 6G Non-Terrestrial Networks???, and Stéphane Meric from IETR - Institut d'Electronique et des Technologies du numéRique - UMR CNRS 6164 on SAR Imaging???. ? We want to express our deepest gratitude to CNR-IEIIT and Politecnico di Torino for the excellent logistics and facilities????. To all the external collaborators, your support has been essential to the success of this meeting. Thank you all for your participation and dedication.? ? Until next time!??? ? #ANTERRA #MSCA #EU #Research #6GNetworks #HorizonEurope

Over the past two months, I have had the privilege of undertaking a research secondment at CNR-IEIIT in Turin as part of the ANTERRA: Antenna Systems Experts for 6G Non-Terrestrial Networks project activities. This experience has been incredible, thanks to the extensive expertise available at my host organization. My secondment focuses on exploring alternative topologies for mm-wave filters and examining the effect of manufacturing tolerances on performance requirements, an area of emerging interest for SATCOM applications. I would like to extend my heartfelt thanks to my secondment supervisor, Giuseppe Virone, as well as oscar peverini, Giuseppe Addamo, Mauro Lumia, and Fabio Paonessa for their invaluable insights and time. Excited to share our work at the upcoming ANTERRA project meeting here in Turin! ?? ??