Title :
Improved feed network for group-type unidirectional transducers
Author :
Macchiarella, Giuseppe ; Viola, G.
Author_Institution :
CNR, Centro di Studio per le Telecomunicazioni Spaziali, Politecnico di Milano, Milano, Italy
Abstract :
In the letter we propose a phasing and matching network for group-type unidirectional transducers (GT-UDTs) which takes into account the electroacoustic interactions between the two phases of the GT-UDT. In comparison with analogous feed circuits from the literature, this network represents an improvement as far as the reduction of the residual fluctuations in the passband frequency response of a GT-UDT device is concerned.
Keywords :
ultrasonic transducers; electroacoustic interactions; feed network; group-type unidirectional transducers; matching network; passband frequency response; phasing network; residual fluctuations;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19830463
