학술논문
A 120+ 120- Element Crisscross CMUT Probe's with Real-Time Switchable Electronic and Fresnel Focusing Capabilities
Document Type
Conference
Author
Source
2018 IEEE International Ultrasonics Symposium (IUS) Ultrasonics Symposium (IUS), 2018 IEEE International. :1-4 Oct, 2018
Subject
Language
ISSN
1948-5727
Abstract
Biplane modality is frequently used in medical ultrasound imaging applications. Crossed array configurations, in which two orthogonal 1-D arrays co-exist on the same area, are particularly suitable for biplane imaging. However, the imaging performance is limited by the absence of focusing capability in the arrays respective elevation directions. In this paper, we present a novel 120+120-element 7 MHz crisscross Capacitive Micromachined Ultrasonic Transducer (CMUT) probe in which the orthogonal arrays are both provided with Fresnel elevation focusing capability. The CMUT probe includes low-noise amplifiers and high-voltage switches, which allow fast switching (