Band 1 Receiver for the Square Kilometre Array

Coordinating university or institute

Chalmers University of Technology,


The Square Kilometre Array (SKA)

Project description

The Square Kilometre Array (SKA) will be the world’s largest and most sensitive radio telescope, capable of transforming our understanding of the universe and our place in it. The dish antennas to be built at the SKA site in South Africa need to be sensitive to a broad range of radio frequencies. The Band 1 receiver developed at Onsala Space Observatory, Chalmers, for 350-1050 MHz (wavelengths 30-85 cm) is composed of a specially-designed quadridge flared horn (QRFH) and room-temperature low noise amplifiers from Low Noise Factory to minimise noise and maximise sensitivity over the required range. Each of the initial 133 dishes of the SKA will be equipped with one Band 1 receiver




Chalmers University of Technology:

  • John Conway, Director, Onsala Space Observatory, Department of Space, Earth and Environment
  • Jonas Flygare, feed design and testing,
  • Magnus Dahlgren, microwave instrument design and testing
  • Leif Helldner, mechanical design and testing
  • Ulf Kylenfall, microwave instrument layout and circuitry

Core deliverables

  • Pre-study and design of individual RF components for high performance receiver design
  • Development and test of demonstration receiver model for proof of concept
  • Development and test of receiver design
  • Successful qualification tests of the final receiver design on the SKA precursor telescope MeerKAT in South Africa

Industry involvement

Leax Arkivator, Ventana Group, MegaMeta, Low Noise Factory, Omnisys.

Total budget

EUR 6 Million


  • Chalmers University of Technology
  • EMSS, South Africa
  • EMSS Antennas, South Africa
  • South African Radio Astronomy Observatory (SARAO)
  • Chalmers Nanofabrication Laboratory

The project is part of the SKA DISH consortium.


Procurement codes

Electronics and radio frequency
Mechanical Engineering and raw materials

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