S
Segolene Tubau
Researcher at Alenia Aeronautica
Publications - 17
Citations - 100
Segolene Tubau is an academic researcher from Alenia Aeronautica. The author has contributed to research in topics: Lens (optics) & Return loss. The author has an hindex of 4, co-authored 15 publications receiving 63 citations. Previous affiliations of Segolene Tubau include Centre national de la recherche scientifique.
Papers
More filters
Journal ArticleDOI
Broadband graded index Gutman lens with a wide field of view utilizing artificial dielectrics: a design methodology
Petros Bantavis,Cebrian Garcia Gonzalez,Ronan Sauleau,George Goussetis,Segolene Tubau,Herve Legay +5 more
TL;DR: A novel all-metal graded index Gutman lens is proposed that exploits an interleaved metasurface unit-cell with glide symmetry that can provide high values of equivalent refractive index with low frequency dispersion.
Proceedings Article
Multiple beam antenna based on a parallel plate waveguide continuous delay lens beamformer
Herve Legay,Segolene Tubau,Etienne Girard,Jean-Philippe Fraysse,Renaud Chiniard,Cheikh Diallo,Ronan Sauleau,Mauro Ettorre,Nelson J. G. Fonseca +8 more
TL;DR: In this article, a quasi-optical beamformer based on a continuous delay lens was designed, manufactured and tested for wide band and wide scanning capability at Ku band, as well as low return loss at all input ports and low mutual coupling.
Proceedings ArticleDOI
Continuous parallel plate waveguide beamformer based on a bifocal constrained lens design
Nelson J. G. Fonseca,Herve Legay,Segolene Tubau,Jean-Philippe Fraysse,Etienne Girard,Mauro Ettorre,Ronan Sauleau +6 more
TL;DR: In this paper, a two-dimensional bifocal constrained lens design is introduced to provide better scanning performance than the standard pillbox antenna, yet avoiding the complexity of alternative constrained lenses designs.
Journal ArticleDOI
A methodology to benchmark flexible payload architectures in a megaconstellation use case
Florian Vidal,Herve Legay,George Goussetis,María García Vigueras,Segolene Tubau,Jean Didier Gayrard +5 more
TL;DR: A methodology to benchmark satellite payload architectures and find the optimal trade‐offs between high flexibility and low complexity is proposed and a bent‐pipe architecture, a beam hopping architecture and a hybrid beam‐steering architecture for a LEO megaconstellation use case is benchmarked.
Proceedings ArticleDOI
A Compact and Broadband Four-Way Dual Polarization Waveguide Power Divider for Antenna Arrays
Charalampos Stoumpos,Jean-Philippe Fraysse,Segolene Tubau,George Goussetis,Ronan Sauleau,Herve Legay +5 more
TL;DR: In this paper, the design and optimization of a novel compact and highly efficient power divider exhibiting dual-polarization in an in-phase $2 \times 4$ scheme (4-way) is presented.