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

fYear

2009

fDate

20-23 Oct. 2009

Firstpage

1169

Lastpage

1172

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 Â¿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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ASICON.2009.5351170

Filename

5351170