Title :
A quad-mode antenna for accurate polarimetric measurements over an ultra-wide field-of-view
Author :
Prinsloo, D.S. ; Meyer, P. ; Ivashina, M.V. ; Maaskant, R.
Author_Institution :
Dept. of Electr. & Electron. Eng., Stellenbosch Univ., Stellenbosch, South Africa
Abstract :
The polarimetric performance of a quad-mode antenna element, consisting of a pair of crossed dipoles and an integrated monopole fed by a quadraxial transmission line, is analysed. Results are compared to a conventional dual-polarised antenna consisting of two orthogonal dipoles. The presented study shows that the quad-mode antenna effectively doubles the polarimetric capabilities of a dual-polarised antenna over the hemispherical field of view.
Keywords :
monopole antenna arrays; polarimetry; radioastronomy; radiotelescopes; dense antenna arrays; dual-polarised antenna; integrated monopole; next-generation radio telescope; polarimetric measurements; quad-mode antenna element; quadraxial transmission line; radio astronomy; sparse antenna arrays; ultrawide field-of-view; Antenna arrays; Antenna radiation patterns; Dipole antennas; Feeds; Transmission line antennas; polarimetry; radio astronomy; receiving antennas;
Conference_Titel :
Antennas and Propagation (EuCAP), 2014 8th European Conference on
Conference_Location :
The Hague
DOI :
10.1109/EuCAP.2014.6902524
