Wavelet Transformation Device Of Surface Acoustic Wave

Through combining the technology of Surface Acoustic Wave (SAW) with wavelet transformation theory, a efficient way of achieving wavelet transformation on the SAW device is brought forward. Wavelet Transformation Device Of Surface Acoustic Wave, which is made in plane manufacture technology for semiconductors, is a sort of analogue device with the function of wavelet transformation.On the basis of the linear system theory, the pulse response and frequency characteristic of Interdigital Transducer (IDT) and wavelet function are compared. Utilize the one to one relationship of IDT between the impulse response properties with the geometry structure; wavelet function is integrated on the SAW device with the microelectronic technology and plane manufacture technology for semiconductors. If impulse response property of weighted IDT of SAW, which has been designed, is the same as the wavelet function expected, When inputed signal go through SAW with convolution property, it will be completed wavelet transformation. In this article, the mathematical model of Wavelet Transformation Device Of Surface Acoustic Wave is completely built. Magnitude—frequency characteristic,bandwidth,quality factor are further researched, which is not only to provide amount of data for the design of device, but also to establish theory base for more applications. Considered these theory and common question of IDT of SAW, Wavelet Transformation Devices Of Surface Acoustic Wave are designed,produced,packaged,measured.With the development of information age, the demand of passive,small scale,high velocity,real time for device, which is going to bring a bright tomorrow for Wavelet Transformation Devices Of Surface Acoustic Wave. Besides, with the development of science and technology, semiconductors manufacture technology will become more and more maturation, which is positively promote to Wavelet Transformation Devices Of Surface Acoustic Wave.