Performance Evaluation of Cascaded P-Matrix in Saw Filter
Downloads
Surface Acoustic Wave (SAW) filters have been used in electronic devices some physical constraints make the optical tuning and interesting mathematical problem. This paper presents a performance evaluation ofthe two cascaded P-matrices. It uses two Inter Digital Transducer (IDT) i.e. these two matrices after cascading provides the best solution. Each matrix has two parts: transmission and reflector. Each matrix is of 3x3 size and (-1, 1, 0) are the values of each matrix. Hence, 81 combinations are generated by making a every possible pair of two matrices. This cascading is performed for 100 frequency samples. The simulated results clearly indicates that cascading gives better results by using distance formula in every parameter for making of SAW filter.
F.M. Pitschi, J.E. Kiwitt, C.C.W. Ruppel, and K.C. Wagner, “Accurate Modelling and Simulation of SAW RF Filters”, Proceedings of the IEEE Microwave Symposium, pp. 2009-2012, 2003.
M. Takeuchi and k.yamanouchi, “Coupled mode analysis of SAW floating electrode type unidirectional transducers”, IEEE Transactions on ultrasonic’s, ferroelectrics, and frequency control, pp. 1993.
D.P. Morgan. “Reflective array modeling for reflective and directional SAW transducers”. IEEE Trans. Ultrasonic Ferroelect., Freq. Contr.,vol. 45,pp.152-157(1998).
G. Kovacs, “A generalised p-matrix model for saw filters,” IEEE Ultrason. Symp., 2003.
N. Finger, G. Kovacs, J. Schoberl, and U. Langer, “Accurate FEM/BEM simulation of surface acoustic wave filters,” IEEE Ultrason. Symp., pp. 1680–1685, 2003.
C. K. Campbell, Surface Acoustic Wave Devices for Mobile and Wireless Communications, Academic Press 1998, p. 132
G. Scholl, W. Ruile, and P. H. Russer, “P-Matrix modeling of transverse-mode coupled resonator filters,” in Proc. IEEE Ultrason.Symp., 1993, pp. 41–46.
C.C.W. Ruppel, W. Ruile, G. Scholl, K.C.Wagner, and O. Manner, Rewiev of Models for Low-Loss Filter Design and Applications, Proceedings of the IEEE Ultrasonics Symposium, pp. 313–324, 1994.
G. Scholl, A. Christ, W. Ruile, P.H. Russer, and R. Weigel, Efficient Analysis Tool for Coupled-SAW-Resonator Filters, IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, vol. 38(3), pp. 243–251, 1991.
Abbott, A Generalized Impulse Response Model for SAW Transducers Including Effects of Electrode Reflections, Proceedings of the IEEE Ultrasonics Symposium, pp. 29–34, 1988.
D.P. Morgan, Surface-Wave Devices for Signal Processing, Studies in Electrical and Electronic Engineering, vol. 19, Elsevier, 1985.
J. Koskela, J. Fagerholm, D.P. Morgan, and M.M. Salomaa, Self-Consistent Analysis of Arbitrary 1D SAW Transducers, Proceedings of the IEEE Ultrasonics Symposium, pp. 135–138, 1996.
F.M. Pitschi, J.E. Kiwitt, C.C.W. Ruppel, and K.C. Wagner, Accurate Modeling and Simulation of SAW RF Filters, Proceedings of the IEEE Microwave Symposium, pp. 2009–2012, 2003.
Pascal Ventura, Mark Solal,PierreDuffilie And Stephene Chamaly, “AGlobal Optimization Procedure For SPUDT Filters”, 1051-0117/93/0000-0005 $4.00 0 1993 IEEE (1993) Ultrasonic Symposium-5.
KiyoharuTagawa, Kenji Tokunagat, HiromasaHaneda, Tsutomu Lgakit and syunechiseki, optimal design of 3 idt type saw filter using local search, 0-7803-7474-6/02/$17,00@ 2002 IEEE.
“Global Optimization Algorithms Theory and Application” Thomas Weise second edition Version: 2009-06-26, pg 21-23, 40-42.
J. Koskela, J. Fagerholm, D.P. Morgan, and M.M. Salomaa, Self-Consistent Analysis of Arbitrary 1D SAW Transducers, Proceedings of the IEEE Ultrasonics Symposium, pp. 135–138, 1996.
T. Kodama, H. Kawabata, Y.Yasuhara and H. Sato. ‘Design of low-loss SAW filters employing distributed acoustic reflection transducers’. Proc. IEEE Ultrason.Symp., 1986, pp. 59-64.
J.M. Hodé, J. Desbois, P. Dufilié, M.Solal and P. Ventura. ‘SPUDT-based filters: design principles and optimisation’. Proc. IEEE Ultrason.Symp., 1995, pp. 39-50.
B. P. Abbott, “A derivation of the coupling-of-modes parameters based on the scattering analysis of SAW transducers and gratings,” in IEEE Ultrason. Symp.,1991, pp. 5-10.
