A 0.9V CMOS 3-5 Ghz broadband flat gain low-noise amplifier for ultra-wide band receivers

Author

Alavi-Rad, H. ; Ziabakhsh, S. ; Ziabakhsh, S. ; Yagoub, M.C.E.

Author_Institution

Dept. of Electr. Eng., Islamic Azad Univ., Langaroud, Iran

Volume

36

Issue

2

fYear

2013

fDate

Spring 2013

Firstpage

87

Lastpage

91

Abstract

In this paper, a 3-5 GHz broadband flat gain low-noise amplifier (LNA) for ultra-wide band (UWB) receivers is presented. In this circuit, a cascode and cascade topology with modified input matching are designed in the frequency range of 3- 5 GHz. Choosing a common-gate technique presents greater flatness in broadband gain in the wide band frequency at the less than -3 dB input reflection coefficient. This approach allowed obtaining a flat broadband gain of 16.7±0.15 dB with an input reflection coefficient less than -5 dB, an output reflection coefficient less than -6 dB, and a noise figure less than 4.3 dB. It uses only 0.9 V voltage supply at 0.18 μm technology and consumes 13 mW (excluding buffer).

Keywords

CMOS analogue integrated circuits; low noise amplifiers; microwave amplifiers; microwave integrated circuits; radio receivers; ultra wideband communication; CMOS broadband flat gain low-noise amplifier; LNA; UWB receivers; cascade topology; cascode topology; common-gate technique; frequency 3 GHz to 5 GHz; modified input matching; power 13 mW; reflection coefficient; size 0.18 mum; ultra-wide band receivers; voltage 0.9 V; Broadband communication; CMOS integrated circuits; Impedance matching; Noise measurement; Ultra wideband communication; Wireless communication; CMOS; LNA; UWB;

fLanguage

English

Journal_Title

Electrical and Computer Engineering, Canadian Journal of

Publisher

ieee

ISSN

0840-8688

Type

jour

DOI

10.1109/CJECE.2013.6601084

Filename

6601084