Antenna array calibration

Details Antenna array calibration Antenna array calibration

1997-04-21

2000-12-05

Issing, Gregory C.

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

Directive

Including a steerable array

342174, G01S 740, H01Q 322

Patent

active

061573434

ABSTRACT:
A method and a system for calibrating the reception and transmission of an antenna array for use in a cellular communication system is disclosed. The calibration of the reception of the antenna array is performed by injecting a single calibration signal into each of a number of receiving antenna sections, in parallel. The signals are collected after having passed receiving components that might have distorted the phase and amplitude. Correction factors are generated and applied to received signals. The calibration of the transmission of the antenna array is performed in a similar way. A single calibration signal is generated and injected into each of a number of transmitting antenna sections, one at a time. The signals are collected, one at a time, after having passed transmitting components that might have distorted the phase and amplitude. Correction factors are generated and applied to signals that are to be transmitted.

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