Title :
Full two-dimensional modelling of broadband SAW filters
Author_Institution :
Corp. Res. & Dev., Siemens AG, Munich
fDate :
11/10/1988 12:00:00 AM
Abstract :
Broadband SAW filters are simulated considering the two-dimensionality of both charge distribution and wave diffraction with a minimum of CPU time. The results show that a structure for end-effect suppressing distorts the transfer function. The typical degradation level of the stopband of SAW filters on LiNbO3 with a high relative bandwidth is found to be -50 to -40 dB
Keywords :
band-stop filters; electronic engineering computing; lithium compounds; surface acoustic wave filters; ultrasonic diffraction; LiNbO3; US transducers; broadband SAW filters; charge distribution; end-effect suppressing; stopband degradation level; transfer function; two-dimensional modelling; wave diffraction;
Journal_Title :
Electronics Letters
