Beam pattern measurement on offset Gregorian reflector mounted with a wideband room temperature receiver for the Square Kilometre Array
Paper in proceedings, 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, Electronics Laboratory

Bhushan Billade

Chalmers, Space, Earth and Environment, Onsala Space Observatory, Electronics Laboratory

Magnus Dahlgren

Chalmers, Space, Earth and Environment, Onsala Space Observatory, Electronics Laboratory

Miroslav Pantaleev

Chalmers, Space, Earth and Environment, Onsala Space Observatory, Electronics Laboratory

Jens Dahlström

Chalmers, Space, Earth and Environment, Onsala Space Observatory, Electronics Laboratory

Bo Wästberg

Chalmers, Space, Earth and Environment, Onsala Space Observatory, Electronics Laboratory

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

2018 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting (APSURSI2018)
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

More information

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1/7/2020 8