Multi-beaming propertieis of reflector antennas used in radio telescopes with wide field of view

TL;DR

This paper explores the advantages of using phased array feeds in multi-beam reflector radio telescopes to achieve wide field of view and improved sensitivity, comparing different beamforming schemes.

Contribution

It introduces modern developments in radio telescope instrumentation, specifically analyzing the sensitivity benefits of phased array feeds over traditional horn-cluster feeds.

Findings

Phased array feeds enable wider and continuous FOV in radio telescopes.

Sensitivity varies with different beamforming schemes.

Phased array feeds offer advantages over horn-cluster feeds in radio astronomy instrumentation.

Abstract

The given work is devoted to the modern developments in the field of radio astronomy instrumentation. In particular, the sensitivity of the multi-beam reflector radio telescope which is fed by phased array (PAF) is considered. Using PAF as reflector feed allows obtaining wide and continuous field of view (FOV) of the telescope. This has several advantages with compare to horn-cluster feeds which are described in this work. The sensitivity inside whole FOV was computed using three different beamforming schemes.