Title :
Optimal design of wide band low loss SAW filters, using slanted interdigital transducers
Author :
Balashov, S.M. ; Baek, K.H.
Author_Institution :
LG Innotek Inc., San Diego, CA, USA
Abstract :
Slanted finger SAW transducers allow one to design wide band filters with excellent characteristics. One of the most interesting modifications of such a filter is the slanted SPUDT. We present an approach to the analysis of such filters based on consistent use of the Y-matrix instead of the conventional P-matrix. Conditions of optimal matching of such SPUDT are obtained and examples of the use of the method developed for the design of wide band SPUDT are shown
Keywords :
impedance matching; interdigital transducers; losses; matrix algebra; radiofrequency filters; surface acoustic wave filters; Y-matrix; coupling-of-modes model; low loss SAW filters; optimal design; slanted IDT; slanted SPUDT; slanted finger SAW transducers; slanted interdigital transducers; wideband SAW filters; Acoustic reflection; Apertures; Electronic mail; Fingers; Optimal matching; Radio frequency; SAW filters; Surface acoustic waves; Transducers; Wideband;
Conference_Titel :
Ultrasonics Symposium, 2000 IEEE
Conference_Location :
San Juan
Print_ISBN :
0-7803-6365-5
DOI :
10.1109/ULTSYM.2000.922512
