Aspects of Measuring the Acoustic Characteristics of Parametric Radiating Antennas

详细

We examine two factors that should be considered when measuring parametric radiating antenna characteristics: nonlinear distortion in the receiver measurement path while receiving strong signals on the frequencies of the pump signal and the weak difference frequency signal; the need for measurements in the nonlinear interaction zone of the pump waves. We present a method of calculating a correction to convert the measured acoustic pressure in the far field.