Title :
Wideband Reconfigurable Capacitive shunt-feedback LNA in 65nm CMOS
Author :
ud Din, Imad ; Wernehag, Johan ; Andersson, Sean ; Mattisson, Sven
Author_Institution :
Ericsson Res., Lund, Sweden
Abstract :
A differential LNA using capacitive shunt feedback is demonstrated in 65nm CMOS. The capacitive shunt feedback structure gives a wideband input matching, S11 <;-17 dB from 500MHz - 1 GHz for low band and S11 <;-20 dB from 1.1 GHz - 2.3GHz for high band. The NF for the complete receiver chain in low band and high band was measured to 3.3 dB and 3.9 dB, respectively. The 1-dB compression point with a 0dBm blocker present at 20MHz offset is 0dBm and the NFdsb with 0dBm blocker is 13 dB. In-band IIP3, and IIP2 are -14.8 dBm, and >;49 dBm, respectively for low band and -18.2dBm and >;44dBm for high band.
Keywords :
CMOS analogue integrated circuits; UHF amplifiers; UHF integrated circuits; differential amplifiers; feedback amplifiers; low noise amplifiers; wideband amplifiers; CMOS process; capacitive shunt feedback structure; differential LNA; frequency 1.1 GHz to 2.3 GHz; frequency 500 MHz to 1 GHz; low noise amplifiers; noise figure 13 dB; noise figure 3.3 dB; noise figure 3.9 dB; receiver chain; size 65 nm; wideband reconfigurable capacitive shunt-feedback LNA; CMOS integrated circuits; CMOS technology; GSM; Logic gates; Multiaccess communication; Spread spectrum communication;
Conference_Titel :
NORCHIP, 2012
Conference_Location :
Cpenhagen
Print_ISBN :
978-1-4673-2221-8
Electronic_ISBN :
978-1-4673-2222-5
DOI :
10.1109/NORCHP.2012.6403126
