Backside Clamped Phased Array Transducer: From FEM to Characterization

In this paper, a FEM model for a 3MHz 1.25D ultrasonic imaging probe (designed for echocardiography) is presented. The transducer design features quarter-wavelength concept (backside danping), single-crystal active material, and air-kerfed elements. The results of the FEM model are benchmarked with experimental data, in terms of impedance, angular aperture, frequency response and axial pressure.