Combined Rotating-element Electric-field Vector (CREV) Method for nearfield Calibration of Phased Array Antenna

Abstract

Base on the classic REV method, a new combined REV method is proposed for the calibration of large-scale phase array. Different from the classical method, the new method synchronously alters the phases of a group of elements by their phaseshifters. When this method is used in nearfield calibration, the signal-to-noise ratio is improved and the dynamic range of the signal is limited, and higher precision could be achieved.