New Low Insertion Loss The High Stability Sawf Simulation Software Development

SAWF(Surface Acoustic Wave Filter)design involves the study of modern ultrasound, radio science, crystal science, microelectronics, thin film science, special equipment manufacturing science and other disciplines of knowledge, the exact theoretical analysis is from the basic wave equation and boundary conditions of the actual departure, seeking system field exact solution is very complex, difficult to make the design more complicated.In addition, according to the design and user needs, by changing the design input parameters required to obtain the actual territory of SAW filters lithography, which greatly reduces the design effort. Establish SPUDT (single-phase unidirectional transducer) equivalent circuit model, using our understanding of the existing design software and mathematical models for analysis of indicators, according to the ideal curve of the product launch of its full-time domain pulse response, and then focus on the preparation of apodization SPUDT, even SPUDT, MSC multiple coupling calculation software, and software debugging, re-establishment of the software come with the chip filter structure data, according to the simulation results, modify and optimize the computer simulation program.According to data from the device to get the chip production, adjusted to optimize the design parameters of the software, get in line with the design of the device software targets. Spectrum efficiency through a number of varieties of SAW filter design the practical application of proven, low insertion loss SAW filter simulation software is practical, the operation is very simple, efficient design, the design results and the actual error is small, with a simulation software promotion application.