Optimization of the 0.35–1.05 GHz Quad-Ridged Flared Horn and Eleven feeds for the Square Kilometer Array baseline design

Author

Ivashina, M.V. ; Bencivenni, C. ; Iupikov, O. ; Yang, Jian

Author_Institution

Dept. of Signals & Syst., Chalmers Univ. of Technol., Goteborg, Sweden

fYear

2014

fDate

3-8 Aug. 2014

Firstpage

513

Lastpage

516

Abstract

Initial optimization results for the wide-band Eleven antenna and Quadruple-Ridged Flared Horn (QRFH), designed to operate as the reflector antenna feeds at 350 - 1050 MHz, are presented and discussed in the context of the next generation radio telescope - the Square Kilometer Array (SKA). First, we describe the procedure that has been developed to carry out time-efficient optimization of the feeds for multiple antenna optics configurations at the system level (so as to maximize the antenna-receiver sensitivity), and then cross-compare the two feed types by assessing the main antenna system characteristics and radio-astronomy performance metrics.

Keywords

UHF antennas; horn antennas; radioastronomy; radiotelescopes; reflectarray antennas; reflector antenna feeds; QRFH; antenna-receiver sensitivity maximization; frequency 0.35 GHz to 1.05 GHz; main antenna system characteristics; multiple antenna optics configurations; next generation radio telescope; quad-ridged flared horn; radio-astronomy performance metrics; reflector antenna feeds; square kilometer array baseline design; time-efficient optimization; wide-band eleven antenna; Antenna feeds; Apertures; Optics; Optimization; Sensitivity; astronomy; wideband reflector antenna feeds;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetics in Advanced Applications (ICEAA), 2014 International Conference on

Conference_Location

Palm Beach

Print_ISBN

978-1-4799-7325-5

Type

conf

DOI

10.1109/ICEAA.2014.6903910

Filename

6903910