Title :
An improved four-focal zone high-frequency ultrasound analog beamformer
Author :
Stitt, J.P. ; Tutwiler, R.L. ; Shung, K. Kirk
Author_Institution :
Appl. Res. Lab., Pennsylvania State Univ., University Park, PA, USA
Abstract :
An improved analog beamformer is described that is used to process the data from a high frequency linear array. This unit is a part of a test system, which has the capability to characterize ultrasound transducer arrays up to 128 elements. Improvements include increasing the accuracy of the dynamic focusing capability and an increased bandwidth of the summing circuit.
Keywords :
biomedical ultrasonics; ultrasonic transducers; dynamic focusing capability; four-focal zone high-frequency ultrasound analog beamformer; high frequency linear array; increased bandwidth; summing circuit; ultrasound transducer arrays; Apertures; Bandwidth; Delay lines; Focusing; Frequency; High-resolution imaging; Multiplexing; Switches; System testing; Ultrasonic imaging;
Conference_Titel :
Ultrasonics Symposium, 2002. Proceedings. 2002 IEEE
Print_ISBN :
0-7803-7582-3
DOI :
10.1109/ULTSYM.2002.1193478
