N x M-path filters: analysis and implementation

被引:3
作者
Elmi, Mohammad [1 ]
Zinjanab, Ali Poursaadati [1 ]
Jalali, Ali [1 ]
机构
[1] Shahid Beheshti Univ, Dept Elect Engn, Microelect Lab, Tehran, Iran
关键词
N-path filter; N-path in M-path; Harmonic rejection; SAW-less blocker filtering; N x M-path; RECEIVER;
D O I
10.1007/s10470-018-1170-0
中图分类号
TP3 [计算技术、计算机技术];
学科分类号
0812 ;
摘要
Conventional N-path filters are often implemented by using a number of switches and internal low-pass filters that are used in zero-IF receivers. In this paper, by using M-path filters instead of internal low-pass filters, N M-path structure is obtained in three states: single-ended input to single-ended output, single-ended input to differential output and harmonic rejection . These structures can be used in low-IF receivers and also to tune the desired filtering frequency more precisely. Analysis and implementation of each structure is also provided.
引用
收藏
页码:543 / 554
页数:12
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