Wideband LNA for a multistandard wireless receiver in 0.18 /spl mu/m CMOS

Author

Andersson, Stefan ; Svenson, C. ; Drugge, Oskar

Author_Institution

Dept. of E.E., Linkoping Univ., Sweden

fYear

2003

fDate

16-18 Sept. 2003

Firstpage

655

Lastpage

658

Abstract

A differential wideband LNA for a multistandard receiver has been designed and implemented in 0.18/spl mu/m CMOS. The circuit topology is a two-stage amplifier with active feedback. The input stage is a common-source stage with a common-drain stage in the feedback loop for impedance matching. Bandwidth enhancement with inductive shunt-peaking is used for maximizing the bandwidth. Measurements on the fabricated device show a power gain of 13.1 dB and a 3-dB bandwidth of nearly 7 GHz together with an IIP3 and a 1-dB compression point of -4.7 dBm and -15.2 dBm respectively. The measured noise figures are 3.3 dB at 1 GHz and 5.5 dB at 6 GHz. Reported LNAs with similar performance are usually implemented with bipolar transistors or MESFETs.

Keywords

CMOS integrated circuits; integrated circuit design; radio receivers; wideband amplifiers; 0.18 micron; 1 GHz; 3.3 dB; 5.5 dB; 6 GHz; CMOS; MESFET; active feedback; bandwidth enhancement; bipolar transistors; circuit topology; common drain stage; common source stage; feedback loop; impedance matching; inductive shunt-peaking; multistandard wireless receiver; two stage amplifier; wideband LNA; Bandwidth; Broadband amplifiers; Circuit topology; Feedback loop; Gain measurement; Impedance matching; Noise figure; Noise measurement; Power measurement; Wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid-State Circuits Conference, 2003. ESSCIRC '03. Proceedings of the 29th European

Conference_Location

Estoril, Portugal

Print_ISBN

0-7803-7995-0

Type

conf

DOI

10.1109/ESSCIRC.2003.1257220

Filename

1257220