R. G. Kulkarni and S. K. Lahiri
ABSTRACT The cosine series functions are used extensively for SAW filter design with noniterative techniques. This paper presents improved sidelobe levels of these functions by rigorous application of criteria for minimizing the sidelobe peaks. An improvement of 2 dB in sidelobe levels is achieved with respect to the earlier results. A new approach is presented to determine the coefficients of these functions uniquely, which reduces the number of simultaneous equations to be solved to N-1 compared to N equations required to be solved in the earlier method.
1999 IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control Vol. 46, pp. 464-466, 1999
© 1999, by The Institute of Electrical and Electronics Engineers, Inc. All rights reserved.