A wideband CMOS LNA design for WiMAX applications

Author

Ben Amor, M. ; Loulou, M. ; Quintanel, S. ; Pasquet, D.

Author_Institution

Dept. of Electr. Eng., Nat. Eng. Sch. of Sfax, Sfax

fYear

2008

fDate

10-11 July 2008

Firstpage

93

Lastpage

96

Abstract

In this paper we present the design of a low noise amplifier for WiMAX (802.16 a) standard with AMS 0.35 mum CMOS process. This LNA is designed to cover the frequency range for licensed and unlicensed bands of the WiMAX 2.3 GHz-5.9 GHz. The proposed amplifier achieve a wide band input and output matching with S11 and S22 lower than -10 dB, a flat gain of 13 db and a noise figure between 3dB for all the band and from the upper to the higher frequencies. The presented wide band LNA employs a Chebychev filter for input matching and an inductive shunt feedback for output matching with a bias current of 25 mA and a supply voltage of 2.5 V.

Keywords

CMOS analogue integrated circuits; MMIC amplifiers; UHF amplifiers; WiMax; circuit feedback; field effect MMIC; impedance matching; low noise amplifiers; microwave filters; wideband amplifiers; 802.16a standard; AMS CMOS process; Chebychev filter; WiMAX applications; bias current; current 25 mA; frequency 2.3 GHz to 5.9 GHz; inductive shunt feedback; low noise amplifier design; noise figure; size 0.35 mum; voltage 2.5 V; wideband CMOS LNA design; Broadband amplifiers; CMOS process; Frequency; Gain; Impedance matching; Low-noise amplifiers; Matched filters; Noise figure; WiMAX; Wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems for Communications, 2008. ECCSC 2008. 4th European Conference on

Conference_Location

Bucharest

Print_ISBN

978-1-4244-2419-1

Electronic_ISBN

978-1-4244-2420-7

Type

conf

DOI

10.1109/ECCSC.2008.4611653

Filename

4611653