Now showing items 1-5 of 5

    • Beam steering in a half-frequency driven airborne CMUT transmitter array 

      Khan, Talha Masood; Taşdelen, Akif Sinan; Yılmaz, Mehmet; Atalar, Abdullah; Köymen, Hayrettin (IEEE Computer Society, 2019)
      An airborne Capacitive Micromachined Ultrasonic Transducer (CMUT) transmit array was designed using electromechanical modelling for unbiased airborne operation. The array elements are designed for maximum swing at 10V p-p ...
    • High-Intensity airborne CMUT transmitter array with beam steering 

      Khan, Talha Masood; Taşdelen, Akif Sinan; Yılmaz, Mehmet; Atalar, Abdullah; Köymen, Hayrettin (IEEE, 2020)
      A 2×2 high-intensity CMUT transmit array that is capable of two-dimensional beam steering is presented. The device uses an ac drive voltage at half the ultrasound frequency without any dc bias, enabling the usage of the ...
    • Mic-in-CMOS: CMUT as a sealed-gap capacitive microphone 

      Köymen, Hayrettin; Ahiska, Y.; Atalar, Abdullah; Köymen, I.; Taşdelen, A .Sinan; Yılmaz, Mehmet (IEEE, 2020)
      The design and production of a CMOS compatible, watertight and ingress-proof CMUT (capacitive micromachined ultrasonic transducer) microphone, mic-in-CMOS, with vacuum-gap is described. We present an analytical ...
    • Optimization of a collapsed mode CMUT receiver for maximum off-resonance sensitivity 

      Khan, M.; Khan, T. M.; Taşdelen, A. S.; Yılmaz, Mehmet; Atalar, Abdullah; Köymen, Hayrettin (Institute of Electrical and Electronics Engineers, 2018-07-28)
      We propose an airborne collapse capacitive micromachined ultrasonic transducer (CMUT) as a practical viable ultrasound transducer capable of providing a stable performance at the off-resonance frequencies. Traditional ...
    • Transmitting CMUT arrays without a DC bias 

      Enhoş, Kerem; Taşdelen, Akif Sinan; Yılmaz, Mehmet; Atalar, Abdullah; Köymen, Hayrettin (IEEE Computer Society, 2019)
      This study focuses on design, simulation, fabrication and measurement of transmitting CMUT arrays with unbiased mode of operation. We presented a design procedure considering the radiation pattern, Rayleigh distance and ...