摘要
提出了一种时域奇偶分解积木式数字傅立叶变换SAWF设计方法.该方法计算的响应比单一常规方法的精度高,理论值与实际值吻合得更好,适用于信息处理系统使用的不同工作频率、对称和非对称频响、线性和非线性相位、高阻抗和低阻抗及不同带宽的SAWF波器的设计.
A new method of SAW filter designing is presented,i. e,digital Fourier transforming method. This method has a higher calculating accuracy of frequency response than the normal wethods, and coincides with theoretical results botter. So it is suitable for various SAW filters' designings in the information processing system, with different frequencies, symmetrical and nonsymmetrical freqresponses, linear and nonlinear phrases, high low impedances and different bandwidths.
出处
《四川大学学报(自然科学版)》
CAS
CSCD
1996年第3期278-282,共5页
Journal of Sichuan University(Natural Science Edition)
关键词
声表面波滤波器
时域奇偶分解
滤波器
SAW filter, interdigital transducer,time-domain odd-even analysis, zero-envelope method, nonsymmetrical freq-response