A Low-Power Ultra-Compact CMOS LNA with Shunt-Resonating Current-Reused Topology

Author

Wei, Muh-Dey ; Chang, Sheng-Fuh ; Liu, Yu-Chun

Author_Institution

Dept. of Electr. Eng., Nat. Chung Cheng Univ., Chia-Yi

fYear

2008

fDate

27-28 Oct. 2008

Firstpage

350

Lastpage

353

Abstract

A low-power ultra-compact CMOS low-noise amplifier (LNA) in a shunt-resonating current-reused topology is presented. The common-source transistors are connected with a shunt-resonating inter-stage match network such that the bias current is shared to have low power consumption and RF signal is doubly amplified to have high gain and low noise figure. The implemented 0.18 mum CMOS LNA achieves 15.2 dB power gain and 3.0 dB noise figure, while only consuming 1.81 mW. Compared with previously published current-reused LNA, the proposed LNA has smallest chip size of 0.28 mm², excluding the I/O pads, and the highest FOM of 2.77.

Keywords

CMOS integrated circuits; low noise amplifiers; network topology; LNA; RF signal; common-source transistors; gain 15.2 dB; low-noise amplifier; low-power ultra-compact CMOS; noise figure 3 dB; power 1.81 mW; shunt-resonating current-reused topology; shunt-resonating inter-stage match network; size 0.18 mum; CMOS technology; Circuit topology; Energy consumption; Inductors; Low-noise amplifiers; MOSFETs; Network topology; Noise figure; Radio frequency; Telecommunication network topology;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Integrated Circuit Conference, 2008. EuMIC 2008. European

Conference_Location

Amsterdam

Print_ISBN

978-2-87487-007-1

Type

conf

DOI

10.1109/EMICC.2008.4772301

Filename

4772301