We report the first conformal ultra-wide band (UWB) array on a doubly curved surface for wide angle electronic scanning. use quadrilateral mesh as basis systematically arraying UWB radiators arbitrary surfaces. A prototype consisting of 52 element, dual-polarized Vivaldi arranged over 181 mm diameter hemisphere is developed. The antennas and SMP connectors are 3D printed out titanium to allow s...

Marco Ladetto, Paolo Corradini, Sonia Vallet, Fabio Benedetti, Umberto Vitolo, Maurizio Martelli, Maura Brugiatelli, Paolo Coser, Alessio Perrotti, Ignazio Majolino, Giuseppe Fioritoni, Sergio Morandi, Maurizio Musso, Renato Zambello, Teodoro Chisesi, Nicola Di Renzo, Paolo Vivaldi, Alberto De Crescenzo, Andrea Gallamini, Flavia Salvi, Gino Santini, Carola Boccomini, Marco Sorio, Monica Astolfi...

TINA IACHINI*, LUIGI MAFFEI, FRANCESCO RUOTOLO, VINCENZO PAOLO SENESE, GENNARO RUGGIERO, MASSIMILIANO MASULLO and NATALIA ALEKSEEVA Department of Psychology, Laboratory of Cognitive Science and Immersive Virtual Reality, Second University of Naples, via Vivaldi, 81100 Caserta, Italy Built Environment Control laboratory R.I.A.S., Second University of Naples, via San Lorenzo, 81031 Aversa (CE), I...

Network Coordinates are a basic building block for most peer-to-peer applications nowadays. They optimize the peer selection process by allowing the nodes to preferably attach to peers to whom they then experience a low round trip time. Albeit there has been substantial research effort in this topic over the last years, the optimization of the various network coordinate algorithms has not been ...

To predict weather conditions as an anticipation act towards natural disasters, a radar is needed. In technology, antennas play important role in supporting the performance of radar. Vivaldi antenna right choice because it has unlimited bandwidth so able to operate at desired work frequency, including working frequency (9.4 GHz). This research discusses modification tapered slots, circular stub...