Novel design and architecture development of fixed and variable focal length beamforming circuits for ultrasound scanners

Real-time ultrasonic imaging systems have been available for more than sixty years and are becoming an important tool in the practice of modern medicine. There are a lot of improvements occurred to the basic architecture and functions of these clinical systems and their beamformers, which are, in many ways, the most important components of these systems. In this thesis we proposed various Ultrasound Beamforming techniques that are used in biomedical applications, Beamforming circuits are used to steer the ultrasound waves to focus at desired location. Our main importance is to design and architecture development of low power and area efficient beamforming circuits.CMUT is used as transducer element is our beamforming approach which has better impedance matching with the medium, high sensitivity, low power consumption, high bandwidth when compared to conventional piezoelectric transducer elements which are usually used in ultrasound scanners