Title :
Integrated Quadrifilar Helix at C-band for spacecraft omni antenna system
Author :
Kumar, B.P. ; Kumar, M. ; Kumar, C. ; Kumar, S. ; Srinivasan, V.V.
Author_Institution :
Commun. Syst. Group, ISRO Satellite Centre, Bangalore, India
Abstract :
In this paper, design of a circularly polarized (CP) Quadrifilar Helix antenna (QFH) is discussed. QFH provides a circularly polarized cardioid-shaped radiation pattern with a high front-to-back ratio, better circular symmetry in the pattern and very good cross-polarization discrimination over wide coverage. Realization aspects and the measured results of the QFH are discussed here. This antenna is proposed to be used for transmission of satellite telemetry data with Omnidirectional coverage in C-band for India´s all upcoming GEO-Stationary and navigational satellites.
Keywords :
helical antennas; omnidirectional antennas; satellite antennas; C-band; GEO-stationary satellite; circular symmetry; circularly polarized cardioid-shaped radiation pattern; circularly polarized quadrifilar helix antenna design; cross-polarization discrimination; front-to-back ratio; integrated quadrifilar helix; navigational satellite; omnidirectional coverage; satellite telemetry data transmission; spacecraft omniantenna system; Antenna measurements; Antenna radiation patterns; Feeds; Helical antennas; Satellite antennas; Satellites; Substrates; circular polarization; omni directional antenna; quadrifilar helix antenna; satellite antennas;
Conference_Titel :
Applied Electromagnetics Conference (AEMC), 2011 IEEE
Conference_Location :
Kolkata
Print_ISBN :
978-1-4577-1098-8
DOI :
10.1109/AEMC.2011.6256905
