Title
A Multi-band Low noise amplifier with gain flatness and Bandwidth enhancement.
Abstract
In this paper, a differential multi-band CMOS low noise amplifier (LNA) is proposed that is operated within a range of 1500-2700 MHz with input matching capacitor switching and gain flatness performance enhancement technique. Traditional multi-band LNAs have poor performances on gain flatness performance. Therefore, we propose a new multi-band LNA which obtain good gain flatness performance by integrating the characteristics of the transistor trans-conductance and LC resonant load. The new LNA can also achieve a tunable frequency at different matching capacitance conditions. The post-layout simulation results shows that the voltage gain is between 19.3 dB and 22.4 dB, the NF is less than 2.5 dB, and the 1-dB compression point is about -5.1 dBm. The LNA consumes 17.79 mW under 1.8 V supply voltage in TSMC 0.18-um RF CMOS process.
Year
DOI
Venue
2014
10.1142/S0218126614500170
JOURNAL OF CIRCUITS SYSTEMS AND COMPUTERS
Keywords
Field
DocType
Multi-band,low noise amplifier,gain flatness,bandwidth enhancement
Flatness (systems theory),Low-noise amplifier,Capacitor,Capacitance,Open-loop gain,Fully differential amplifier,Computer science,Control theory,Electronic engineering,Bandwidth (signal processing),Transistor
Journal
Volume
Issue
ISSN
23
2
0218-1266
Citations 
PageRank 
References 
0
0.34
8
Authors
4
Name
Order
Citations
PageRank
San-Fu Wang1207.21
Jan-ou Wu2124.53
Yang-Hsin Fan352.15
Jhen-Ji Wang400.34