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.

antenna

wideband

square kilometre array

quad-ridge flared horn

meerkat.

measurement

Författare

Jonas Flygare

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

Adriaan Peens-Hough

South African Radio Astronomy Observatory (SARAO)

Leif Helldner

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

Magnus Dahlgren

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

George Smit

South African Radio Astronomy Observatory (SARAO)

Pieter Kotze

South African Radio Astronomy Observatory (SARAO)

Ronny Wingden

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

Tobia Carozzi

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

Ulf Kylenfall

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

Lars Pettersson

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

Miroslav Pantaleev

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

13th European Conference on Antennas and Propagation, EuCAP 2019

Vol. EuCAP 2019 8740087

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

Ämneskategorier

Rymd- och flygteknik

Signalbehandling

Annan elektroteknik och elektronik

Infrastruktur

Onsala rymdobservatorium

Mer information

Senast uppdaterat

2019-09-11