High-frequency surface acoustic wave device acoustic-electric coordination full-wave simulation method for

Abstract

The present invention discloses a high-frequency surface acoustic wave device acoustic-electric coordination full-wave simulation method. The method comprises: firstly, constructing a high-frequency surface acoustic wave device acoustic-electric coordination full-wave simulation system, wherein the constructed system comprises an HFSS modeling simulation module and an Ansoft Designer circuit coordination simulation module; then performing physical modeling and simulation on a radio-frequency effect of an encapsulated portion of a surface acoustic wave surface-mounted device; and finally, enabling the Ansoft Designer circuit coordination simulation module to construct a radio-frequency equivalent circuit by using an Ansoft Designer and acquire a circuit coordination simulation result. The method disclosed by the present invention has high modeling efficiency and a simple implementation process, can effectively solve the problem of failing to precisely simulate the surface acoustic wave surface-mounted device under a high-frequency operating condition, and has an excellent promoting function for research and development of high-frequency surface acoustic wave devices.

Description

technical field [0001] The invention relates to a full-wave simulation method, in particular to a high-frequency surface acoustic wave device acoustic-electric cooperative full-wave simulation method. Background technique [0002] At present, the most common simulation method for surface acoustic wave devices is to use the equivalent circuit model, coupling mode model or finite element / boundary element method to simulate the acoustic characteristics of the interdigitated structure on the surface acoustic wave substrate, in which the equivalent circuit model can combine the surface acoustic wave The structure of each part of the device is equivalent to a circuit element, and the acoustic problem is transformed into a circuit problem to solve, which has great advantages in the simulation application of conventional lossy surface acoustic wave devices; the coupling mode model is based on the multiple reflection effect between fingers. Construct a quasi-periodic structure, the c...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a high-frequency surface acoustic wave device acoustic-electric collaborative full-wave simulation method to solve the problem that the existing method is greatly affected by the electromagnetic effect of the package