Title :
A 0.045mm2 0.1–6GHz reconfigurable multi-band, multi-gain LNA for SDR
Author :
Geis, Arnd ; Rolain, Y. ; Vandersteen, Gerd ; Craninckx, Jan
Abstract :
A low area fully reconfigurable multi-band LNA array based on active feedback amplifiers with mixed resistive and switched inductor loads is presented. The 90 nm baseline digital CMOS implementation covers the entire frequency range of interest for SDR from 0.1 to 6 GHz with a dynamic gain range from 0 dB to 22 dB. A noise figure as low as 2.7 dB and an input-referred linearity IIP3 of -4 dBm at 16 dB gain is achieved. An IIP3 of +9 dBm is reached in low gain mode to allow for high signal and interferer power at the antenna input. The LNA draws between 10 and 26 mA from a 1.2 V supply. The active area of the array is only 0.045 mm2.
Keywords :
CMOS digital integrated circuits; UHF amplifiers; low noise amplifiers; microwave amplifiers; software radio; active feedback amplifiers; antenna input; baseline digital CMOS; current 10 mA; current 26 mA; frequency 0.1 GHz to 6 GHz; gain 0 dB to 22 dB; mixed resistive load; multigain LNA; noise figure; reconfigurable multiband LNA array; size 90 nm; software defined radios; switched inductor loads; voltage 1.2 V; Active inductors; Dynamic range; Feedback amplifiers; Frequency; GSM; Impedance matching; Linearity; Mercury (metals); Radiofrequency integrated circuits; Testing; LNA; active feedback; multi-band; multi-mode; switched inductor;
Conference_Titel :
Radio Frequency Integrated Circuits Symposium (RFIC), 2010 IEEE
Conference_Location :
Anaheim, CA
Print_ISBN :
978-1-4244-6240-7
DOI :
10.1109/RFIC.2010.5477273
