Sensitivity simulation and measurement of the SKA Band 1 wideband feed package on MeerKAT
Paper i proceeding, 2019

Advances in wideband feed technology for radio telescopes enable high sensitivity observations over large bandwidths. The wideband quad-ridge flared horn (QRFH) feed package for Band 1 of the Square Kilometre Array (SKA) was optimized for high sensitivity. The 3:1 feed package covers 350-1050 MHz and is a complete room temperature system with low-noise amplifiers integrated inside the ridges of the horn. The QRFH is dual-linear polarized and designed with spline-defined profiles for the horn and ridge shape. Measured feed s-parameters show input reflection less than -11 dB across the band with good port isolation. In this paper we present the first measured sensitivity levels of the Band 1 feed package, which was tested on the SKA precursor reflector MeerKAT. We also present measured aperture efficiency and intrinsic cross-polarization (IXR). The measured results show good agreement with simulations.

meerkat.

wideband

measurement

antenna

square kilometre array

quad-ridge flared horn

Författare

Jonas Flygare

Chalmers, Rymd-, geo- och miljövetenskap, Onsala rymdobservatorium

Adriaan Peens-Hough

South African Radio Astronomy Observatory (SARAO)

Leif Helldner

Chalmers, Rymd-, geo- och miljövetenskap, Onsala rymdobservatorium

Magnus Dahlgren

Chalmers, Rymd-, geo- och miljövetenskap, Onsala rymdobservatorium

George Smit

South African Radio Astronomy Observatory (SARAO)

Pieter Kotze

South African Radio Astronomy Observatory (SARAO)

Ronny Wingdén

Chalmers, Rymd-, geo- och miljövetenskap, Onsala rymdobservatorium

Tobia Carozzi

Chalmers, Rymd-, geo- och miljövetenskap, Onsala rymdobservatorium

Ulf Kylenfall

Chalmers, Rymd-, geo- och miljövetenskap, Onsala rymdobservatorium

Lars Pettersson

Chalmers, Rymd-, geo- och miljövetenskap, Onsala rymdobservatorium

Miroslav Pantaleev

Chalmers, Rymd-, geo- och miljövetenskap, Onsala rymdobservatorium

13th European Conference on Antennas and Propagation, EuCAP 2019

Vol. EuCAP 2019 8740087
978-88-907018-8-7 (ISBN)

13th European Conference on Antennas and Propagation, EuCAP 2019
Krakow, Poland,

Infrastruktur

Onsala rymdobservatorium

Ämneskategorier

Elektroteknik och elektronik

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Senast uppdaterat

2024-01-03