The Square Kilometre Array (SKA) project is an international effort to build the world's largest
radio telescope, enabling science with unprecedented detail and survey speed. The project …

In this communication, we present a new optimization and realization of a quadruple-ridge
flared horn (QRFH) as a feed for reflector antennas of the square kilometer array (SKA) …

This article describes the design of the 18 m shaped offset Gregorian reflector system for the
Next Generation Very Large Array (ngVLA) radio interferometer and the associated 1.66: 1 …

In this article, we present a novel dielectrically loaded quad-ridge flared horn (QRFH) as a
reflector feed with beyond-decade ultrawideband performance. The dielectric is machined in …

This communication proposes a compact, high performance, quadruple-ridged flared horn
operating from 8 to 50 GHz. A prototype fed by two coaxial connectors has been designed …

We present a progress report of a study of FR I and FR II radio galaxies. Several new
morphological features in the radio emission are now revealed using the high (μ Jy) …

This paper presents a wideband pyramidal sinuous antenna, over a conducting ground
plane, for use as a reflector antenna feed. Specific attention is given to comparisons with a …

Advances in wideband feed technology for radio telescopes enable high sensitivity
observations over large bandwidths. The wideband quad-ridge flared horn (QRFH) feed …

Reflector-based radio telescopes are used as tools for observations in both radio astronomy
and space geodesy. To observe the weak sources in space, highly sensitive receivers …

A sinuous antenna, projected onto a pyramidal structure, is presented as a possible wide
band single pixel feed candidate for the Square Kilometre Array reflector system. Simulated …