Energy-Efficient RF-Optics Multi-Beam Systems Using Correlation Technologies: Toward Hybrid GaN-FDSOI Front-End-Modules

Wane, S.;Ferrero, F.;Sombrin, J.;Tombakdjian, L.;Craeye, Christophe;et.al.
(2022) 2022 IEEE Texas Symposium on Wireless and Microwave Circuits and Systems — Location: Texas, USA (19.April.2022)

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In this paper, we propose hybrid GaN-FDSOI Front-End-Modules (FEMs) combined with lens-based mmWave antenna modules for energy-efficient multi- beamforming systems. X-topology Lattice-based balanced (LB) and unbalanced (LU) differential switches are designed and fabricated using FDSOI platforms for building scalable multi- beamforming FEMs. Unified mmWave and Baseband correlation technologies based on energy density and EVM (Error Vector Magnitude) metrics are introduced for low complexity (leveraging sparsity of MIMO channels) cost-effective multi-beamforming systems. Combination of convolutional accelerators with analog signal processing for linking beam- selection algorithms to stochastic-wave-shaping (SWS) will create new paradigms for eliminating the concept of “elements” in arrays and replacing it by the vision of “radiating current flows” over a textured surface (metasurface or metavolume). The radiating metasurfaces or metavolumes which can be conformal to the patterned optical lenses are fed by a limited number of emitting/receiving points. The use of time-modulated correlation functions will foster new system architectures with critical functionalities including direction of arrival (DOA) estimation and secure communications.
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Wane, S., Ferrero, F., Sombrin, J., Tombakdjian, L., Bajon, D., Ratajczak, P., Molina, F., Rack, M., Nyssens, L., Raskin, J.-P., Lederer, D., Craeye, C., & et al. (2022). Energy-Efficient RF-Optics Multi-Beam Systems Using Correlation Technologies: Toward Hybrid GaN-FDSOI Front-End-Modules. Proceedings of the 2022 IEEE Texas Symposium on Wireless and Microwave Circuits and Systems. Published. 2022 IEEE Texas Symposium on Wireless and Microwave Circuits and Systems, Texas, USA. https://hdl.handle.net/2078.5/224065