Beam pattern measurement on offset Gregorian reflector mounted with a wideband room temperature receiver for the Square Kilometre Array
Paper in proceeding, 2018
We present measured on-dish beam patterns for a room temperature spline-profile quad-ridge flared horn (QRFH) feed designed for the Square Kilometre Array (SKA) Band 1 covering 350-1050 MHz. The feed and LNA package has been mounted on the offset Gregorian SKA precursor prototype telescope, Dish Verification Antenna 1 (DVA-1) located at the Dominion Radio Astrophysical Observatory (DRAO) near Penticton, British Columbia, Canada. Telescope beam pattern cuts are measured by sweeping over the sun and adding corrections for the solar disk size, elevation and aperture efficiency. Sensitivity calculated with measured receiver noise show good agreement with the predicted performance.
low noise amplifiers
offset reflector
room temperature
SKA
wideband feed
QRFH
Author
Jonas Flygare
Chalmers, Space, Earth and Environment, Onsala Space Observatory
Bhushan Billade
Chalmers, Space, Earth and Environment, Onsala Space Observatory
Magnus Dahlgren
Chalmers, Space, Earth and Environment, Onsala Space Observatory
Miroslav Pantaleev
Chalmers, Space, Earth and Environment, Onsala Space Observatory
Jens Dahlström
Chalmers, Space, Earth and Environment, Onsala Space Observatory
Bo Wästberg
Chalmers, Space, Earth and Environment, Onsala Space Observatory
Gary Hovey
Herzberg Astronomy and Astrophysics, Dominion Radio Astrophysical Observatory (DRAO)
Richard Hellyer
Herzberg Astronomy and Astrophysics, Dominion Radio Astrophysical Observatory (DRAO)
Rob Messing
Herzberg Astronomy and Astrophysics, Dominion Radio Astrophysical Observatory (DRAO)
Bruce Veidt
Herzberg Astronomy and Astrophysics, Dominion Radio Astrophysical Observatory (DRAO)
Gordon Lacy
Herzberg Astronomy and Astrophysics, Dominion Radio Astrophysical Observatory (DRAO)
Mohammad Islam
Herzberg Astronomy and Astrophysics, Dominion Radio Astrophysical Observatory (DRAO)
2018 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting (APSURSI2018)
Vol. APSURSI 2018 1759-1760 8608627
978-1-5386-7102-3 (ISBN)
2018 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting (APSURSI2018)
Boston, MA, USA,
Boston, MA, USA,
Areas of Advance
Information and Communication Technology
Infrastructure
Onsala Space Observatory
Subject Categories
Electrical Engineering, Electronic Engineering, Information Engineering
DOI
10.1109/APUSNCURSINRSM.2018.8608627