Wideband single pixel feed system over 4.6-24 GHz for the Square Kilometre Array
Paper i proceeding, 2019

We present the Band B feed system over 4.6-24 GHz designed for the Square Kilometre Array (SKA) reflector for radio astronomy applications. The feed is a Quad-ridge Flared Horn (QRFH) with a customized shape based on spline-defined profiles to achieve improved wideband performance. The feed system shows high aperture efficiency and sensitivity on the SKA reflector in predictions based on measured feed beam patterns. We present the feed design overview, cryogenic dewar concept and measurement of receiver noise (10-20 K) with wideband low-noise amplifiers, and full system simulation of the performance.

Quad-ridge flared horn

Radio astronomy

Ultra-wideband feed

Spine-defined profile

Sensitivity

Författare

Jonas Flygare

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

Bin Dong

Chinese Academy of Sciences

Jian Yang

Chalmers, Elektroteknik, Kommunikations- och antennsystem, Antennsystem

Leif Helldner

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

Magnus Dahlgren

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

Jin Chengjin

Chinese Academy of Sciences

Miroslav Pantaleev

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

Gary Hovey

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

John Conway

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

Proceedings of the 2019 21st International Conference on Electromagnetics in Advanced Applications, ICEAA 2019

630-635 8879392

21st International Conference on Electromagnetics in Advanced Applications, ICEAA 2019
Granada, Spain,

Infrastruktur

Onsala rymdobservatorium

Ämneskategorier

Kommunikationssystem

Signalbehandling

DOI

10.1109/ICEAA.2019.8879392

Mer information

Senast uppdaterat

2020-01-04