Title :
A low-power 3.1–5GHz ultra-wideband low noise amplifier utilizing Miller Effect
Author :
Wu, Wei ; Novak, Ondrej ; Charles, Cameron T. ; Fan, Xiaoya
Author_Institution :
Sch. of Comput., Northwestern Polytech. Univ., Xi´´an, China
Abstract :
The candidate topologies for low-power, wideband LNAs are analyzed in this paper, and a novel LNA topology for the 3.1-5 GHz UWB frequency band is presented. The LNA uses subthreshold biasing and employs its Miller capacitance as part of a Butterworth-type bandpass filter for input impedance matching. The LNA achieves a power gain of 14.4 dB with S11 less than -10 dB across the 3.1-5 GHz frequency band. The power consumption is less than 1.5 mW, and the noise figure varies from 5.7-6.3 dB across the 3.1-5 GHz frequency band.
Keywords :
low noise amplifiers; ultra wideband communication; Butterworth-type bandpass filter; Miller capacitance; Miller effect; input impedance matching; subthreshold biasing; ultra-wideband low noise amplifier; Band pass filters; Broadband amplifiers; Capacitance; Energy consumption; Frequency; Gain; Impedance matching; Low-noise amplifiers; Topology; Ultra wideband technology;
Conference_Titel :
Ultra-Wideband, 2009. ICUWB 2009. IEEE International Conference on
Conference_Location :
Vancouver, BC
Print_ISBN :
978-1-4244-2930-1
Electronic_ISBN :
978-1-4244-2931-8
DOI :
10.1109/ICUWB.2009.5288712
