Towards a Simple Model for SAW Delayline Using CAD

Due to further applications of Surface acoustic wave (SAW) devices in many applicable electronics and communications fields, modeling and simulation for these devices become more urgent in recent years. SAW devices can found in frequency range from 10 MHz to several GHz. It can found in RF, IF, stages of mobile. SAW devices convert mechanical waves to electrical and vice versa through IDT. This paper introduces a simplified tool for modeling and simulation of SAW delay line with uniform length transducers. Mason's equivalent circuit of SAW delayline is my selected technique of this research, and PTC software Tool is the simulation tool of the delayline. SAW delayline device operating at 70 MHz frequency to be used in IF stages in mobile communication circuits and systems. The results obtained in this work provide an adequate basis for understanding the parameters effects and to aid in the optimization processes of delay lines based upon these effects.