Title :
Design of a low-loss low-noise tapered slot phased array feed for reflector antennas
Author :
Arts, M. ; Ivashina, M. ; Iupikov, O. ; Bakker, L. ; van den Brink, R.
Author_Institution :
Netherlands Inst. for Radio Astron. (ASTRON), Dwingeloo, Netherlands
Abstract :
Upgrading the Multi-Frequency-Front-Ends of the Westerbork Synthesis Radio Telescope (WSRT) by multiple-beam phased array feeds will improve its survey speed by a factor 20. The present paper describes two design steps of the dual-polarized tapered slot antenna (TSA) array required for this upgrade. Redesign of the TSA element, integration of the Low Noise Amplifier on the feed line substrate and a more rigid connection between the elements improved the low-noise performance, stability and reproducibility of the array. Although, the described array is aimed to be used as a phased array feed, the approach is also applicable in directly radiating beam-steering antenna arrays.
Keywords :
Antenna arrays; Antenna feeds; Frequency; Phased arrays; Prototypes; Radio astronomy; Reflector antennas; Slot antennas; Solid modeling; Stability;
Conference_Titel :
Antennas and Propagation (EuCAP), 2010 Proceedings of the Fourth European Conference on
Conference_Location :
Barcelona, Spain
Print_ISBN :
978-1-4244-6431-9
Electronic_ISBN :
978-84-7653-472-4
