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. Author manuscript; available in PMC: 2022 Sep 1.
Published in final edited form as: IEEE Trans Ultrason Ferroelectr Freq Control. 2021 Aug 27;68(9):3042–3052. doi: 10.1109/TUFFC.2021.3079720

Fig. 10.

Fig. 10.

Simulated CMUT responses for different receiver terminations employing the pulse-echo model (the plane reflector is placed 1 cm away from the CMUT: (a) Open-circuit (1 GΩ) termination; (b) −C termination (−7.01 pF ∥500 kΩ); (c) Narrowband matching circuit with parallel L and R (45 μH ∥16 kΩ) termination. The resistor value is based on complex conjugate matching at the electrical port; (d) Broadband matching circuit with parallel −C and R (−7.31 pF ∥ 105 kΩ) termination. The resistor value is based on minimum acoustic reflectivity.