Title :
Polarization analysis and evaluation for radio astronomy aperture array antennas
Author :
Fiorelli, B. ; Arts, M. ; Virone, G. ; de Lera Acedo, E. ; van Cappellen, W.A.
Author_Institution :
ASTRON, Netherlands Inst. for Radio Astron. Dwingeloo, Dwingeloo, Netherlands
Abstract :
Polarization purity is one of the most stringent requirements for future radio telescopes. To evaluate polarization ratio levels of large phased arrays involving thousands of elements, a full wave simulation approach is very time consuming, when feasible. Commonly, large arrays are approximated by infinite array approach or studied by single (isolated) element analysis. Being simplified approaches, part of the effect of the array configuration is missed resulting in analysis error. A study of this effect for regular arrays based on the intrinsic cross-polarization ratio (IXR) is presented.
Keywords :
antenna phased arrays; polarisation; radiotelescopes; IXR; full wave simulation approach; infinite array approach; intrinsic cross-polarization ratio; isolated element analysis; large phased arrays; polarization purity; polarization ratio levels evaluation; radio astronomy aperture array antennas; radio telescopes; regular arrays; single element analysis; Antenna arrays; Approximation methods; Arrays; Dipole antennas; Radio astronomy; SKA; aperture arrays; phased array antennas; polarimetry; polarization; radio astronomy;
Conference_Titel :
Antennas and Propagation (EuCAP), 2013 7th European Conference on
Conference_Location :
Gothenburg
Print_ISBN :
978-1-4673-2187-7
Electronic_ISBN :
978-88-907018-1-8
