A 1–16 GHz wideband CMOS low-noise IF amplifier for ALMA radio astronomy receivers

Author

Jia, Cao ; Zhiqun, Li ; Qin, Li ; Zhigong, Wang

Author_Institution

Inst. of RF & OE ICs, Southeast Univ., Nanjing, China

fYear

2011

fDate

25-28 Sept. 2011

Firstpage

1066

Lastpage

1069

Abstract

This paper presents a wideband low noise IF amplifier developed for the ALMA Front End system using 90nm CMOS. A topology of shunt-series peaking and active shunt feedback low noise IF amplifier is proposed to extend the 3-dB and input matching bandwidth, combined with a series input inductor. The circuit achieves a flat gain of 34dB, while the 3-dB bandwidth as well as return loss of better than 10dB range from 1GHz to 16GHz. Operating at a 1.2V supply voltage, the IF amplifier consumes a dc power of 31.8 mW with a minimum noise figure of 4.2dB.

Keywords

CMOS analogue integrated circuits; MMIC amplifiers; UHF amplifiers; field effect MMIC; intermediate-frequency amplifiers; low noise amplifiers; radio receivers; radioastronomy; wideband amplifiers; ALMA front end system; ALMA radio astronomy receivers; frequency 1 GHz to 16 GHz; gain 34 dB; matching bandwidth; noise figure 4.2 dB; power 31.8 mW; shunt feedback low-noise IF amplifier; shunt-series peaking low-noise IF amplifier; size 90 nm; voltage 1.2 V; wideband CMOS low-noise IF amplifier; Gain; Impedance matching; Inductors; Noise; Noise figure; Shunt (electrical); Wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

Communication Technology (ICCT), 2011 IEEE 13th International Conference on

Conference_Location

Jinan

Print_ISBN

978-1-61284-306-3

Type

conf

DOI

10.1109/ICCT.2011.6158044

Filename

6158044