Title :
Narrow-aperture SAW filter with both transducers finger-length-weighted
Author_Institution :
University of Oxford, Department of Engineering Science, Oxford, UK
Abstract :
A 2.5 ¿-aperture SAW filter has been designed and tested. The single-mode nature of the waveguiding filter allows finger-length-weighting to be distributed between input and output transducers according to a simple procedure. The resulting filter has a stopband rejection in excess of 50 dB.
Keywords :
crystal filters; surface acoustic wave devices; LiNbO3; SAW filter; finger-length-weighting; input transducers; output transducers; single-mode filter; stopband rejection; surface acoustic wave filter; waveguiding filter;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19870868
