Title :
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
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;
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
DOI :
10.1109/ECCSC.2008.4611653
