Title
A 0.5–2 GHz high frequency selectivity RF front-end with series N-path filter
Abstract
This paper presents a 0.5–2GHz RF front-end with Series N-path Filter. With series 8-path filter applied, an ultimate rejection larger than 46 dB with 30 dB out-of-band rejection at 50 MHz offset is achieved. Dynamic power consumption is saved due to small filter switch size compared with parallel structures. Utilizing a tunable narrow band LNA in front of series N-path filter, 3rd harmonic rejection exceeding 54 dB with robust to process variation is realized. These techniques improve the front-end's adjacent and far-end frequency selectivity in RF domain, relaxing mixer's linearity design pressure. Implemented in 65 nm CMOS process, the frontend achieves a NF of 2.6–5.7 dB and maximum gain of 46–60 dB at 0.5–2 GHz, consuming 18–26 mW from 1.2 V voltage supply and occupies an area of 0.56 mm2.
Year
DOI
Venue
2015
10.1109/ISCAS.2015.7169122
International Symposium on Circuits and Systems
Keywords
Field
DocType
RF front-end, series N-path filter, blocker tolerance, frequency selectivity, harmonic rejection, multi-band receiver
RF front end,Band-pass filter,Computer science,Voltage,Linearity,Electronic engineering,Radio frequency,Low-pass filter,Process variation,m-derived filter
Conference
ISSN
Citations 
PageRank 
0271-4302
1
0.36
References 
Authors
4
7
Name
Order
Citations
PageRank
Ying Guo111.37
Ling Shen2116.89
Fan Yang330.81
Yong-an Zheng482.78
long chen5191.74
zhang6109.77
Huailin Liao78314.91