Design of PHAROS2 Phased Array Feed
Paper in proceeding, 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.
Digital radio
Binary alloys
Radio astronomy
Signal processing
Potassium alloys
Author
A. Navarrini
Istituto nazionale di astrofisica (INAF)
J. Monari
Istituto di Radioastronomia
A. Scalambra
Istituto di Radioastronomia
A. Melis
Istituto nazionale di astrofisica (INAF)
R. Concu
Istituto nazionale di astrofisica (INAF)
G. Naldi
Istituto di Radioastronomia
A. MacCaferri
Istituto di Radioastronomia
A. Cattani
Istituto di Radioastronomia
P. Ortu
Istituto nazionale di astrofisica (INAF)
J. Roda
Istituto di Radioastronomia
F. Perini
Istituto di Radioastronomia
G. Comoretto
Arcetri Astrophysical Observatory
M. Morsiani
Istituto di Radioastronomia
A. Ladu
Istituto nazionale di astrofisica (INAF)
S. Rusticelli
Istituto di Radioastronomia
A. Mattana
Istituto di Radioastronomia
P. Marongiu
Istituto nazionale di astrofisica (INAF)
A. Saba
Istituto nazionale di astrofisica (INAF)
M. Schiaffino
Istituto di Radioastronomia
E. Carretti
Istituto di Radioastronomia
F. Schilliro
Istituto nazionale di astrofisica (INAF)
E. Urru
Istituto nazionale di astrofisica (INAF)
G. Pupillo
Istituto di Radioastronomia
M. Poloni
Istituto di Radioastronomia
T. Pisanu
Istituto nazionale di astrofisica (INAF)
R. Nesti
Arcetri Astrophysical Observatory
G. Muntoni
Istituto nazionale di astrofisica (INAF)
K. Zarb Adami
University of Oxford
University of Malta
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
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