Title
A 6 GHz 130 nm CMOS Harmonic Recombination RF Receiver Front-End Using N-Path Filtering
Abstract
An RF receiver front-end using two feedforward N-path switching filters and harmonic-recombination configuration is presented. As the time-variant nature of the N-path filter introduces multiple frequency translations, third harmonic selection of the switching frequency rather than the fundamental helps to reduce the input frequency of the multiphase clock generator by a factor of three. The proposed 5.9-7.1 GHz RF receiver operates at the third harmonic of the local oscillator, thanks to the combination of an N-Path switching filter and a harmonic recombination architecture. The receiver is implemented in a 130 nm CMOS technology and operates from a 1.2 V supply. Post-layout simulation results show that, for a 6 GHz RF input, the receiver provides a harmonic rejection of 45 and 55 dB for the first and second harmonics, respectively. A noise figure of 5.5 dB at a 16 MHz baseband frequency is achieved, and an input matching of less than -15 dB is attained over the desired frequency band.
Year
DOI
Venue
2020
10.1109/NEWCAS49341.2020.9159795
2020 18th IEEE International New Circuits and Systems Conference (NEWCAS)
Keywords
DocType
ISSN
receiver front-end,harmonic selection,N-path filter,harmonic recombination
Conference
2472-467X
ISBN
Citations 
PageRank 
978-1-7281-7045-9
0
0.34
References 
Authors
0
3
Name
Order
Citations
PageRank
Nakisa Shams110.70
Arash Abbasi210.70
Frederic Nabki310.70