Scanning window technique in SPUDT optimization

Author

Bausk, E. ; Taziev, R.

Author_Institution

Inst. of Semicond. Phys., Acad. of Sci., Novosibirsk, Russia

Volume

3

fYear

2004

fDate

23-27 Aug. 2004

Firstpage

1996

Abstract

This paper is devoted to optimization of single-phase unidirectional transducers (SPUDT). The essence of the suggested algorithm is a consideration of all possible electrode combinations inside a local region that scans step by step throughout optimized transducers. The algorithm can keep control of filter parameters according to any desired priority scheme, i.e. provides a desired compromise between insertion loss, triple transit suppression, stopband rejection, in-band ripple, etc. Our EWC/SPUDT analysis is based on T-matrix approach (D.P. Morgan, IEEE Ultras. Symp. Proc., pp. 215-220, 1995).

Keywords

band-stop filters; electrodes; interdigital transducers; losses; matrix algebra; optimisation; surface acoustic wave filters; surface acoustic wave transducers; ultrasonic transducers; EWC/SPUDT analysis; SPUDT optimization; T-matrix approach; electrode combinations; electrode width controlled SPUDT; filter parameters; in-band ripple; insertion loss; optimization algorithm; priority scheme; scanning window technique; single-phase unidirectional transducers; stopband rejection; triple transit suppression; Bidirectional control; Electrodes; Filters; Frequency; Insertion loss; Karhunen-Loeve transforms; Physics; Surface acoustic waves; Topology; Transducers;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 2004 IEEE

ISSN

1051-0117

Print_ISBN

0-7803-8412-1

Type

conf

DOI

10.1109/ULTSYM.2004.1418225

Filename

1418225