Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)
- 1999.11a
- /
- Pages.173-176
- /
- 1999
Frequency Response Properties of SAW Tansversal Filters by Impulse Modeling
임펄스 모델에 의한 SAW Transversal Filters의 주파수 응답 특성
Abstract
Frequency responses of the surface acoustic wave(SAW) filters are simulated by using the impulse modeling. The simulation technique of the SAW filters is to use the Fourier transformation to make a correspondence between the impulse response of the filter and the taps in the delay line. Since the Fourier series must be truncated after a finite number of terms, window functions are often used to weight the coefficients to obtain the desirable side-lobe level and bandwidth. The filter design is operated through the iterative simulation procedures. The design process is capable of yielding filters with optimized frequency response characteristics.
Keywords