ANTENNA ARRAY CALIBRATION

摘要

FIELD: mobile receiving and transmitting radio communication systems. SUBSTANCE: antenna array has several antenna sections with input signals supplied in turn to each section; signal transmitted by each antenna section is measured, correction factors are shaped for each section basing on mentioned measured signals; output signals of mentioned antenna sections are adjusted according to mentioned correction factors; each output signal of antenna is adjusted by adding I- and Q-correction factors using digital technique. Correction factors may be used for regulating phases and/or amplitudes of antenna- section signals. Correction factors may be applied to signals between pattern-forming facilities and antenna sections. EFFECT: improved precision of shaping directivity pattern and directing antenna beams. 20 cl, 5 dwg