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Design and Test of a Mobile Antenna System With Tri-Band Operation for Broadband Satellite Communications and DBS Reception
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- Authors
- Soon Young Eom, Seong Ho Son, Young Bae Jung, Soon Ik Jeon, Sergei A. Ganin, Anatoly G. Shubov, Alexey K. Tobolev, Alexander V. Shishlov
- Issue Date
- 2007-11
- Citation
- IEEE Transactions on Antennas and Propagation, v.55, no.11, pp.3123-3133
- ISSN
- 0018-926X
- Publisher
- IEEE
- Language
- English
- Type
- Journal Article
- Project Code
- 05MR2500, MoBISAT(Mobile Broadband Interactive Satellite Access Technology)Development, Lee Ho Jin
- Abstract
- The tri-band mobile antenna system for broadband multimedia services in the Ka/K-band and a simultaneous direct broadcast service in the Ku-band has been developed. The radiating part of the antenna consists of a shaped dual reflector system and a tri-band feed of circular polarization. The low-profile offset main reflector has an aperture size of 60 cm × 20 cm; therefore, a fan beam is formed which is sharp in azimuth and wide in elevation. The feed system contains a protruding dielectric rod for Ka/K-band and 2 × 2 active phased array. The latter provides the beam for Ku-band along with four fast electrical beams for stable satellite tracking. The new tracking algorithm based on a fusion technique involving various sensors and fast electrical beams has also been introduced. The antenna system was mounted on a large ship and a test car, and successfully operated via Koreasat-3. © 2007 IEEE.