A Novel and Accurate Phased Arrays Calibration Method by Combining Rotating-Element Electric-Field Vector and Amplitude Zeroing

A novel and accuracy phased array calibration method is presented in this paper. The method improves the rotating-element electric-field vector (REV) method, where the phase of each element is changed to obtain the varying amplitude and phase. During the amplitude calibration, a more concise and accurate calculation formula is proposed by rotating the vector. In addition, the phase error is calculated using the array element feed zeroing method. Simplicity of calculation and heightened precision can be achieved with the proposed rotating-element electric-field vector and amplitude zeroing (REV-AZ) method. Simulation experiments have shown that the REV-AZ method gives better calibration results.