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. Author manuscript; available in PMC: 2012 Feb 3.
Published in final edited form as: IEEE Trans Ultrason Ferroelectr Freq Control. 2011 Jun;58(6):1189–1202. doi: 10.1109/TUFFC.2011.1929

Fig. 3.

Fig. 3

(a) Designed aperture (gray elements only transmit, white elements transmit and receive) and (b) resultant on-axis beamplot simulated using Field II. Simulations of the aperture steered to (c) +16° and (d) +32° in both azimuth and elevation at 2.5 MHz and a 7-cm focus.