Design of PHAROS2 Phased Array Feed
Paper in proceedings, 2018
We describe the design and architecture of PHAROS2, a cryogenically cooled 4-8 GHz Phased Array Feed (PAF) demonstrator with digital beamformer for radio astronomy application. The instrument will be capable of synthesizing four independent single-polarization beams by combining 24 active elements of an array of Vivaldi antennas. PHAROS2, the upgrade of PHAROS (PHased Arrays for Reflector Observing Systems), features: a) commercial cryogenic LNAs with state-of-the-art performance, b) a 'Warm Section' for signal filtering, conditioning and single downconversion to select a≈275 MHz: Intermediate Frequency (IF) bandwidth within the 4-8 GHz Radio Frequency (RF) band, c) an IF signal transportation by analog WDM (Wavelength Division Mutiplexing) fiber-optic link, and d) a FPGA-based Italian Tile Processing Module (iTPM) digital backend. PHAROS2 will be mounted at the primary focus of the 76-m diameter Lovell radio telescope (Jodrell Bank Observatory, UK) for technical and scientific validation.
Signal processing
Binary alloys
Potassium alloys
Digital radio
Radio astronomy
Author
A. Navarrini
INAF Osservatorio Astronomico di Cagliari
J. Monari
Istituto di Radioastronomia
A. Scalambra
Istituto di Radioastronomia
A. Melis
INAF Osservatorio Astronomico di Cagliari
R. Concu
INAF Osservatorio Astronomico di Cagliari
G. Naldi
Istituto di Radioastronomia
A. MacCaferri
Istituto di Radioastronomia
A. Cattani
Istituto di Radioastronomia
P. Ortu
INAF Osservatorio Astronomico di Cagliari
J. Roda
Istituto di Radioastronomia
F. Perini
Istituto di Radioastronomia
G. Comoretto
Arcetri Astrophysical Observatory
M. Morsiani
Istituto di Radioastronomia
A. Ladu
INAF Osservatorio Astronomico di Cagliari
S. Rusticelli
Istituto di Radioastronomia
A. Mattana
Istituto di Radioastronomia
P. Marongiu
INAF Osservatorio Astronomico di Cagliari
A. Saba
INAF Osservatorio Astronomico di Cagliari
M. Schiaffino
Istituto di Radioastronomia
E. Carretti
Istituto di Radioastronomia
F. Schilliro
Osservatorio Astrofisico di Catania
E. Urru
INAF Osservatorio Astronomico di Cagliari
G. Pupillo
Istituto di Radioastronomia
M. Poloni
Istituto di Radioastronomia
T. Pisanu
INAF Osservatorio Astronomico di Cagliari
R. Nesti
Arcetri Astrophysical Observatory
G. Muntoni
INAF Osservatorio Astronomico di Cagliari
K. Zarb Adami
University of Malta
University of Oxford
A. Magro
University of Malta
R. Chiello
University of Oxford
L. Liu
University of Manchester
K. Grainge
University of Manchester
M. Keith
University of Manchester
Miroslav Pantaleev
Onsala Space Observatory
Chalmers, Space, Earth and Environment, Onsala Space Observatory, Electronics Laboratory
W. van Cappellen
Netherlands Institute for Radio Astronomy (ASTRON)
2018 2nd URSI Atlantic Radio Science Meeting, AT-RASC 2018
8471305
2nd URSI Atlantic Radio Science Meeting, AT-RASC 2018
Gran Canaria, Spain,
Gran Canaria, Spain,
Subject Categories
Telecommunications
Signal Processing
Other Electrical Engineering, Electronic Engineering, Information Engineering
Infrastructure
Onsala Space Observatory
DOI
10.23919/URSI-AT-RASC.2018.8471305