A Low-Power Dual-Channel Distributed Amplifier for Multielement Receivers

Author

Parlak, Mehmet ; Buckwalter, James F.

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of California at San Diego, La Jolla, CA, USA

Volume

59

Issue

2

fYear

2011

Firstpage

435

Lastpage

442

Abstract

A dual-channel CMOS distributed amplifier (DA) is proposed for a highly linear receiver front-end. Proper choice for the number of stages and cutoff frequency of the distributed circuit realizes isolation between amplifier channels. Analysis of the distributed circuit describes the role of reverse gain in minimum noise figure (NF) and intermodulation distortion. The chip is fabricated in a 0.13-μm CMOS process, occupies an area of 0.60 mm², and consumes 18 mW from a 1.2-V supply. Measurements of the DA show an NF of 5.7 dB, an output P_{1 dB} of 4.9 dBm, and a forward gain of 9.6 dB at 24 GHz.

Keywords

CMOS analogue integrated circuits; MMIC amplifiers; distributed amplifiers; low-power electronics; CMOS DA; amplifier channels; frequency 24 GHz; gain 9.6 dB; intermodulation distortion; linear receiver front-end; low-power dual-channel distributed amplifier; multielement receivers; noise figure; noise figure 5.7 dB; power 18 mW; size 0.13 mum; voltage 1.2 V; CMOS; distributed amplifier (DA); dual-channel amplifier; high linearity; intermodulation distortion; low-noise amplifier (LNA);

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/TMTT.2010.2097790

Filename

5680983