Idealized P-Matrix Based Modelling and Computational Analysis of SAW Delay Lines for Improved Performance in Sensors

The present research study describes the computational P-matrix model based modelling and subsequent analysis of the frequency response of a 300 MHz ST-X Quartz Surface Acoustic Wave (SAW) delay line device designed and fabricated with 43.5 IDT finger pairs. Employing a custom made MATLAB® algorithm, the device is modelled with a provision to vary its design parameters. Finally, a comparison of the computationally simulated frequency response with experimental device results indicates promising and good agreement between model and experiment which can be utilized and implemented during design and development stage of these devices for their potential applications in SAW Sensor systems.