  We consider an error model for phased array with gain errors and phase
errors, with errors dependent on the phase applied and the antenna index. Under
this model, we propose an algorithm for measuring the errors by selectively
turning on the antennas at specific phases and measuring the transmitted power.
In our algorithm, the antennas are turned on individually and then pairwise for
the measurements, and rotation of the phased array is not required. We give
numerical results to measure the accuracy of the algorithm as a function of the
signal-to-noise ratio in the measurement setup. We also compare the performance
of our algorithm with the traditional rotating electric vector (REV) method and
observe the superiority of our algorithm. Simulations also demonstrate an
improvement in the coverage on comparing the cumulative distribution function
(CDF) of equivalent isotropically radiated power (EIRP) before and after
calibration.
