Dr. Alessandro Navarrini Profile

Dr. Alessandro Navarrini

Sr. Technologist at INAF - Osservatorio Astronomico di Cagliari

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Author

Publications (17)

Proceedings Article | 9 July 2018 Presentation + Paper

Metamaterial-based Toraldo pupils for super-resolution at millimetre wavelengths

Giampaolo Pisano, Alexey Shitvov, Carole Tucker, Daniela Mugnai, Pietro Bolli, Luca Olmi, Francesco D'Agostino, Massimo Migliozzi, Alessandro Orfei, Alessandro Navarrini, Cristiano Riminesi, Bruno Maffei

Proceedings Volume 10708, 107080G (2018) https://doi.org/10.1117/12.2314086

KEYWORDS: Phase shifts, Super resolution, Gaussian beams, Collimators, Mirrors, Metamaterials, Receivers, Antennas, Reflection, Polarization

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Proceedings Article | 20 July 2016 Paper

Status of the radio receiver system of the Sardina Radio Telescope

G. Valente, A. Orfei, R. Nesti, A. Navarrini, S. Mariotti, P. Bolli, T. Pisanu, J. Roda, L. Cresci, P. Marongiu, A. Scalambra, D. Panella, A. Ladu, A. Cattani, L. Carbonaro, E. Urru, A. Cremonini, F. Fiocchi, A. Maccaferri, M. Morsiani, M. Poloni

Proceedings Volume 9914, 991425 (2016) https://doi.org/10.1117/12.2232880

KEYWORDS: Receivers, Radio telescopes, Cryogenics, Polarization, Oscillators, Waveguides, Interference (communication), Electronic filtering, Linear filtering, L band

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Proceedings Article | 20 July 2016 Paper

The 7-beam S-band cryogenic receiver for the SRT primary focus: project status

G. Valente, P. Marongiu, A. Navarrini, A. Saba, G. Montisci, A. Ladu, T. Pisanu, M. Pili, S. Dessi, A. Uccheddu, N. Iacolina, D. Perrodin, M. Buttu, E. Egron, A. Melis, C. Tiburzi, V. Vacca

Proceedings Volume 9914, 991422 (2016) https://doi.org/10.1117/12.2232625

KEYWORDS: Receivers, Polarization, Cryogenics, S band, Radio telescopes, Staring arrays, Optical amplifiers, Mirrors, Waveguides, Oscillators

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Proceedings Article | 20 July 2016 Paper

The control system of the 3 mm band SIS receiver for the Sardinia Radio Telescope

A. Ladu, P. Ortu, A. Saba, M. Pili, F. Guadiomonte, A. Navarrini, E. Urru, T. Pisanu, G. Valente, P. Marongiu, G. Mazzarella

Proceedings Volume 9914, 991423 (2016) https://doi.org/10.1117/12.2232703

KEYWORDS: Cryogenics, Oscillators, Control systems, Radio telescopes, Receivers, Calibration, Microcontrollers, Antennas, Software development, Astronomy

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Proceedings Article | 20 July 2016 Paper

A real-time KLT implementation for radio-SETI applications

Andrea Melis, Raimondo Concu, Pierpaolo Pari, Claudio Maccone, Stelio Montebugnoli, Andrea Possenti, Giuseppe Valente, Nicoló Antonietti, Delphine Perrodin, Carlo Migoni, Matteo Murgia, Alessio Trois, Massimo Barbaro, Alessandro Bocchinu, Silvia Casu, Maria Ilaria Lunesu, Jader Monari, Alessandro Navarrini, Tonino Pisanu, Francesco Schilliró, Valentina Vacca

Proceedings Volume 9914, 99143D (2016) https://doi.org/10.1117/12.2232347

KEYWORDS: Signal detection, Interference (communication), Field programmable gate arrays, Zinc, Stochastic processes, Fourier transforms, Space telescopes, Galactic astronomy, Signal processing, Principal component analysis

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Proceedings Article | 23 July 2014 Paper

A 3mm band SIS receiver for the Sardinia Radio Telescope

A. Ladu, T. Pisanu, A. Navarrini, P. Marongiu, G. Valente

Proceedings Volume 9153, 91532J (2014) https://doi.org/10.1117/12.2056339

KEYWORDS: Receivers, Radio telescopes, Antennas, Helium, Mirrors, Radio optics, Liquids, Gaussian beams, Astronomy, Observatories

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Proceedings Article | 24 September 2012 Paper

A 3mm multipixel SIS receiver for IRAM 30-m Pico Veleta Telescope

Anne-Laure Fontana, Catherine Boucher, Patrice Serres, Yves Bortolotti, Florence Cope, Irvin Stil, Bastien Lefranc, Olivier Garnier, Gilles Butin, François Mattiocco, Santiago Navarro, Dave John, Alessandro Navarrini, Karl Schuster

Proceedings Volume 8452, 84522E (2012) https://doi.org/10.1117/12.926177

KEYWORDS: Receivers, Polarization, Waveguides, Mirrors, Telescopes, Cryogenics, Prototyping, Space telescopes, Manufacturing, Transducers

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Proceedings Article | 24 September 2012 Paper

A 3mm band dual polarization MMIC receiver for the 30-m Pico Veleta Radio Telescope

Patrice Serres, Olivier Garnier, Yves Bortolotti, Santiago Navarro, Dave John, Bruno Pissard, Alessandro Navarrini, Karl Schuster

Proceedings Volume 8452, 84522X (2012) https://doi.org/10.1117/12.926203

KEYWORDS: Receivers, Field effect transistors, Polarization, Telescopes, Cryogenics, Waveguides, Oscillators, Prototyping, Interference (communication), Temperature metrology

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Proceedings Article | 15 July 2010 Paper

A waveguide orthomode transducer for 385-500 GHz

Christopher Groppi, Alessandro Navarrini, Goutam Chattopadhyay

Proceedings Volume 7741, 77412D (2010) https://doi.org/10.1117/12.857417

KEYWORDS: Waveguides, Prototyping, Polarization, Electromagnetic simulation, Transformers, Transducers, Calibration, Temperature metrology, Photography, Network security

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Proceedings Article | 15 July 2010 Paper

A compact L-band Ortho Mode Junction

T. Pisanu, P. Marongiu, A. Navarrini, G. Valente

Proceedings Volume 7741, 774124 (2010) https://doi.org/10.1117/12.856665

KEYWORDS: Waveguides, L band, Connectors, Polarization, Signal attenuation, Calibration, Receivers, Aluminum, Radio telescopes, Wave propagation

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Proceedings Article | 15 July 2010 Paper

A novel 180° hybrid power divider

G. Valente, A. Navarrini, T. Pisanu

Proceedings Volume 7741, 77412F (2010) https://doi.org/10.1117/12.857365

KEYWORDS: Waveguides, L band, Connectors, Neodymium, Linear filtering, Electromagnetism, Receivers, Radio telescopes, Microwave radiation, Cryogenics

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Proceedings Article | 15 July 2010 Paper

The dual-band LP feed system for the Sardinia Radio Telescope prime focus

G. Valente, T. Pisanu, P. Bolli, S. Mariotti, P. Marongiu, A. Navarrini, R. Nesti, A. Orfei, J. Roda

Proceedings Volume 7741, 774126 (2010) https://doi.org/10.1117/12.857306

KEYWORDS: L band, Waveguides, Antennas, Connectors, Radio telescopes, Receivers, Device simulation, Transducers, Polarization, Electromagnetic coupling

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Proceedings Article | 21 July 2008 Paper

Dual-side backward coupler waveguide orthomode transducer for the 3 mm band

Alessandro Navarrini, Renzo Nesti

Proceedings Volume 7020, 70202M (2008) https://doi.org/10.1117/12.791198

KEYWORDS: Waveguides, Polarization, Transformers, Calibration, Transducers, Wave propagation, Photography, Gold, Network security, Tolerancing

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Proceedings Article | 10 July 2008 Paper

Status of the Sardinia Radio Telescope project

Gianni Tofani, Gianni Alvito, Roberto Ambrosini, Pietro Bolli, Claudio Bortolotti, Loredana Bruca, Franco Buffa, Alessandro Cattani, Gianni Comoretto, Andrea Cremonini, Luca Cresci, Nichi D'Amico, Gian Luigi Deiana, Antonietta Fara, Luigina Feretti, Franco Fiocchi, Enrico Flamini, Flavio Fusi Pecci, Gavril Grueff, Giuseppe Maccaferri, Andrea Maccaferri, Franco Mantovani, Sergio Mariotti, Carlo Migoni, Filippo Messina, Jader Monari, Marco Morsiani, Matteo Murgia, José Musmeci, Mauro Nanni, Vincenzo Natale, Alessandro Navarrini, Monia Negusini, Renzo Nesti, Luca Olmi, Alessandro Orfei, Andrea Orlati, Francesco Palla, Dario Panella, Claudio Pernechele, Salvatore Pilloni, Tonino Pisanu, Antonio Poddighe, Marco Poloni, Angelo Poma, Sergio Poppi, Ignazio Porceddu, Isabella Prandoni, Juri Roda, Mauro Roma, Pierguido Sarti, Alessandro Scalambra, Francesco Schillirò, Andrea Tarchi, Gian Paolo Vargiu, Giampaolo Zacchiroli

Proceedings Volume 7012, 70120F (2008) https://doi.org/10.1117/12.790503

KEYWORDS: Receivers, Antennas, Mirrors, Telescopes, Radio astronomy, Control systems, Space telescopes, Radio telescopes, Astronomy, Electromagnetic coupling

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Proceedings Article | 9 July 2008 Paper

L-band orthomode transducer for the Sardinia Radio Telescope

Alessandro Navarrini, Tonino Pisanu

Proceedings Volume 7014, 70147N (2008) https://doi.org/10.1117/12.790557

KEYWORDS: Waveguides, Connectors, Polarization, L band, Signal attenuation, Transducers, Photography, Aluminum, Radio telescopes, Calibration

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Proceedings Article | 8 October 2004 Paper

Simple 1-mm receivers with fixed tuned double sideband SIS mixer and wideband InP MMIC amplifier

Gregory Engargiola, Alessandro Navarrini, Richard Plambeck, N. Wadefalk

Proceedings Volume 5498, (2004) https://doi.org/10.1117/12.552401

KEYWORDS: Receivers, Amplifiers, Double sideband modulation, Temperature metrology, Waveguides, Shape memory alloys, Telescopes, Optical correlators, L band, Gold

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Proceedings Article | 8 October 2004 Paper

22-GHz tunable bandpass filters based on niobium MEMS

Matthias Schicke, Alessandro Navarrini, Karl-Friedrich Schuster

Proceedings Volume 5498, (2004) https://doi.org/10.1117/12.566398

KEYWORDS: Bridges, Niobium, Microelectromechanical systems, Electrodes, Bandpass filters, Capacitors, Capacitance, Digital filtering, Superconductors, Molecular bridges

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Showing 5 of 17 publications

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