Title :
Multi-faced and multibeam DBF antenna for high altitude platforms station stages of antenna development
Author :
Ku, Bon-Jun ; Kim, Yang-Su ; Kang, Byung-Su ; Ahn, Do-Seob ; Belyaev, A.S. ; Egorov, Ye N. ; Vladimirov, N.V. ; Ganin, S.A. ; Reutov, A.C. ; Suserov, Yu.A. ; Shitikov, A.M. ; Shishlov, A.V. ; Shubov, A.G.
Author_Institution :
Res. Inst., Taejeon, South Korea
Abstract :
Advantages of the multi-beam antenna for Stratospheric Communication System (or HAPS) with digital beam forming (DBF) are demonstrated in comparison with analogue beam forming (ABF). To cover the service area from nadir to a circle of radius 55 km by 199 beams, the antenna system of seven flat active phased array antennas (APAA) is proposed. Due to high accuracy of amplitudes and phases in channels of the APAA with DBF, optimal cell forming as well as high spatial isolation between cells is obtained. Stages of antenna creating are considered. Results of the work at initial stages are presented too.
Keywords :
antenna phased arrays; multibeam antennas; 55 km; Stratospheric Communication System; analogue beam forming; cell forming; digital beam forming; flat active phased array antennas; multibeam antenna; Antenna arrays; Aperture antennas; Dipole antennas; Earth; Frequency; Multimedia systems; Phased arrays; Receiving antennas; Satellites; System testing;
Conference_Titel :
Antenna Theory and Techniques, 2003. 4th International Conference on
Print_ISBN :
0-7803-7881-4
DOI :
10.1109/ICATT.2003.1239156
