Antenna array receiver and a method of correcting a phase shift

Details Antenna array receiver and a method of correcting a phase shift Antenna array receiver and a method of correcting a phase shift

1998-05-21

1999-08-03

Blum, Theodore M.

Communications: directive radio wave systems and devices (e.g.,

Directive

Including a steerable array

342157, 342 92, 342 81, H01Q 322, H01Q 324, H01Q 326

Patent

active

059331127

ABSTRACT:
First and second phase control amount tables output to first and second vector multiply circuits phase control signals Sc1 and Sc2 representative of corresponding phase shift amounts with gains represented by input gain control signals Sg1 and Sg2 as arguments. The first and second vector multiply circuits shift the phases of in-phase components S13 and S23 and quadrature components S14 and S24 of an antenna 2 in opposite directions in accordance with the phase control signals Sc1 and Sc2. Consequently, the amount of phase shift caused by receiving amplifiers is corrected so that the phase difference at antenna terminals between the input signals to the antennas is maintained.

REFERENCES:
patent: 5412414 (1995-05-01), Ast et al.
patent: 5666124 (1997-09-01), Chethik et al.
D. Gerlach et al., entitled "Adaptive Transmitting Antenna Arrays with Feedback", at pp. 150-152 of IEEE Signal Processing Letters, vol. 1, No. 10, Oct. 1994.

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