Title :
A novel algorithm to reduce insertion loss and Triple Transit Echo in SAW filter to improve the performance of communication systems
Author :
Habibzadeh, A. ; Dousti, M. ; Hajghassem, H.
Author_Institution :
Dept. of Electr. Eng., Islamic Azad Univ. (IAU), Tehran, Iran
Abstract :
Design and implementation of a low loss Surface Acoustic Wave (SAW) filter is presented in this work. The transducer insertion loss with respect to the various design parameters, particularly acoustic aperture length is investigated. Simultaneous improvement of quality coefficient, reflection loss and insertion loss (IL) are considered in our simulation. This method is very useful for IDT (inter digital transducer) design in specific and SAW filter design in general at different frequencies. To show the performance of our design, the parameters have been used in Three-IDT SAW filter structure based on impulse circuit model, by adding matching network, the filter has realized an S21 (Insertion loss) of 6 dB and S11 (network reflection) suppression of more than 60 dB at 2.4 GHz.
Keywords :
UHF filters; interdigital transducers; surface acoustic wave filters; surface acoustic wave transducers; UHF filters; acoustic aperture length; frequency 2.4 GHz; impulse circuit model; insertion loss reduction; inter digital transducer; loss 2 dB; quality coefficient; reflection loss; surface acoustic wave filter; transducer insertion loss; triple transit echo; Acoustic reflection; Acoustic transducers; Acoustic waves; Apertures; Circuit simulation; Frequency; Insertion loss; Performance loss; SAW filters; Surface acoustic waves; Insertion Loss(IL); Inter digital Transducer(IDT); Surface Acoustic Wave (SAW); Triple Transit Echo (TTE);
Conference_Titel :
Application of Information and Communication Technologies, 2009. AICT 2009. International Conference on
Conference_Location :
Baku
Print_ISBN :
978-1-4244-4739-8
Electronic_ISBN :
978-1-4244-4740-4
DOI :
10.1109/ICAICT.2009.5372517
