Current-mode approach for a variable-gain low-noise amplifier (LNA)

Author

Lee, Lini ; Jamuar, S.S. ; Sidek, Roslina Mohd ; Khatun, Sabira

Author_Institution

Dept. of Electr. & Electron. Eng., Univ. Putra Malaysia, Serdang, Malaysia

Volume

2

fYear

2005

fDate

16-18 Nov. 2005

Abstract

This paper presents a technique using current-mode approach for a CMOS variable-gain low noise amplifier, emphasizing on low power consumption and low noise factor at 1.8 GHz using standard 0.18 μm CMOS process. Rivaling classical designs in performance, this design has controllable gain range from 12.85 dB to 8.26 dB by varying current without changes in supply, V_dd as well as keeping noise factor minimum by introducing an additional capacitance. As a result, very low noise factor become possible at very low power consumption level through current-mode approach.

Keywords

CMOS integrated circuits; low noise amplifiers; power consumption; 0.18 mum; 1.8 GHz; 12.85 to 8.26 dB; CMOS process; LNA; current-mode approach; noise factor; power consumption; variable-gain low-noise amplifier; CMOS technology; Capacitance; Circuits; Communication standards; Energy consumption; Gain; Low-noise amplifiers; Power engineering and energy; Radio frequency; Voltage; CMOS; current-mode; low power; noise minimization; variable-gain;

fLanguage

English

Publisher

ieee

Conference_Titel

Networks, 2005. Jointly held with the 2005 IEEE 7th Malaysia International Conference on Communication., 2005 13th IEEE International Conference on

ISSN

1531-2216

Print_ISBN

1-4244-0000-7

Type

conf

DOI

10.1109/ICON.2005.1635577

Filename

1635577