Antenna Beam Pattern Characteristics of HAPS User Terminal

Bon-Jun KU  Dae Sub OH  Nam KIM  Do-Seob AHN  

IEICE TRANSACTIONS on Communications   Vol.E92-B   No.11   pp.3394-3396
Publication Date: 2009/11/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E92.B.3394
Print ISSN: 0916-8516
Type of Manuscript: Special Section LETTER (Special Section on Satellite Communication Technologies in Conjunction with Main Topics of JC-SAT2008)
high-altitude platform user terminal (HUT),  satellite,  antenna beam pattern,  interference,  null,  

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High Altitude Platform Stations (HAPS) are recently considered as a green infrastructure to provide high speed multimedia services. The critical issue of HAPS is frequency sharing with satellite systems. Regulating antenna beam pattern using adaptive antenna schemes is one of means to facilitate the sharing with a space receiver for fixed satellite services on the uplink of a HAPS system operating in U bands. In this letter, we investigate antenna beam pattern characteristics of HAPS user terminals with various values of scan angles of main beam, null position angles, and null width.