Title :
Design of a noise-canceling differential CMOS LNA for 3.1–10.6 GHz UWB receivers
Author :
Liu, Jinhua ; Chen, Guican ; Zhang, Ruizhi
Author_Institution :
Sch. of Electron. & Inf. Eng., Xi´´an Jiaotong Univ., Xi´´an, China
Abstract :
An ultra-wideband (UWB) 3.1-10.6 GHz fully differential low noise amplifier (LNA) employing the broadband noise-canceling technique is presented. With the proposed circuit topology, the noise from the input matching transistor is entirely suppressed over the full UWB band. The LNA is designed in 0.18 ¿m CMOS technology. The simulated results show that the noise figure is 3.7-4.5 dB and the power gain is 13.4-14.1 dB in the desired UWB band, both the input and output reflection coefficients are below -10 dB, and the IIP3 is -6.3 dBm at 5.7 GHz. It consumes 12.5 mW from a 1.8 V supply.
Keywords :
CMOS integrated circuits; low noise amplifiers; radio receivers; transistors; ultra wideband technology; wideband amplifiers; CMOS technology; UWB receivers; broadband noise-canceling technique; circuit topology; frequency 3.1 GHz to 10.6 GHz; gain 13.4 dB to 14.1 dB; input matching transistor; noise figure; noise figure 3.7 dB to 4.5 dB; noise-canceling differential CMOS LNA; power 12.5 mW; power gain; reflection coefficients; size 0.18 mum; ultrawideband fully differential low noise amplifier; voltage 1.8 V; Broadband amplifiers; CMOS technology; Circuit noise; Circuit simulation; Circuit topology; Differential amplifiers; Impedance matching; Low-noise amplifiers; Noise figure; Ultra wideband technology; common-gate; differential LNA; noise-canceling; ultra-wideband;
Conference_Titel :
ASIC, 2009. ASICON '09. IEEE 8th International Conference on
Conference_Location :
Changsha, Hunan
Print_ISBN :
978-1-4244-3868-6
Electronic_ISBN :
978-1-4244-3870-9
DOI :
10.1109/ASICON.2009.5351170
