Paper Info
Title
Design and Analysis of an N-Path Filter with High Out-of-Band Rejection Using Feed-Forward Technique.
Abstract
This paper presents an N-path filter with high out-of-band rejection using feed-forward technique. The structure utilizes two four-path filters, one as the main-path and the other as auxiliary-path, and two TIAs to increase the order of the filter from two to four. As a result of this, and due to using two series resistors in the main path, the out-of-band rejection is significantly improved. Analysis and simulations show that the series resistors can be chosen such that the NF degradation is below 2 dB while the out-of-band rejection is improved by about 20 dB. Therefore, the trade-off between the insertion-loss and out-of-band rejection is relaxed compared to conventional N-path filter. Also, it is shown that decreasing the size of baseband capacitors improves the NF of the filter. The effect of clock phase-noise on NF of the filter in the presence of strong out-of-band blocker is modeled and simulated.
Year
DOI
Venue
2019
10.1142/S0218126619500531
JOURNAL OF CIRCUITS SYSTEMS AND COMPUTERS
Keywords
Field
DocType
Feed-forward technique,out-of-band rejection,noise analysis,N-path filter,CMOS
Baseband,Capacitor,Computer science,Control theory,Out of band rejection,Electronic engineering,CMOS,Degradation (geology),Resistor,Feed forward
Journal
Volume
Issue
ISSN
28
3.0
0218-1266
Citations 
PageRank 
References 
0
0.34
7
Authors
2
Name
Order
Citations
PageRank
Amin Mohammadpour100.34
Abdolreza Nabavi24717.09