Patent ID: 10256922

Abstract:
A calibration method for calibrating a device under test with regard to at least one of phase and amplitude characteristics is described, with providing a device under test. Providing a measurement unit that has at least one measurement antenna unit configured to measure the radiated power of the device under test in the far-field region of the device under test. Turning on at least two antenna elements at the same time with at least one of a steering phase and a steering amplitude such that a peak beam, a null or a side lobe of the radiation pattern generated is directed towards the measurement antenna unit. Adjusting the phase or amplitude of at least one antenna element while the at least one other antenna element remaining stable. Recording the adjusted phase value or the adjusted amplitude value. Saving the setup corresponding to the highest measured gain or the lowest measured gain. Repeating the adjusting and recording steps for at least one other antenna element until a threshold value for the measured gain is reached.