Title :
A variable gain, 2.5 GHz CMOS low-noise amplifier for mobile wireless communications
Author :
Farid, Nazif Emran ; Marzuki, Arjuna ; Rahim, Ahmad Ismat Abdul
Author_Institution :
Microelectron. & Nano Technol. Program, TM Innovation Center, Cyberjaya, Malaysia
Abstract :
A two-stage, variable-gain low-noise amplifier (LNA) which offers good matching and good noise performance is demonstrated. A prototype 2.5 GHz LNA is designed and simulated using 0.13 um RF CMOS process technology. The simulated LNA has a maximum gain of 32.6 dB, input return loss of -44.9 dB, and output return loss of -5 dB. It has a noise figure of 1 dB and input P1dB of -33.9 dBm in high-gain mode, and noise figure of 2.6 dB and input P1dB of -14.6 dBm in low-gain (15.4 dB) mode. The complete device draws 20.3 mA of current from a 1.2 V supply for a total power consumption of 24.4 mW.
Keywords :
CMOS integrated circuits; low noise amplifiers; mobile radio; radiofrequency integrated circuits; CMOS low-noise amplifier; LNA; RF CMOS process technology; current 20.3 mA; frequency 2.5 GHz; gain 15.4 dB; gain 32.6 dB; loss -44.9 dB; loss -5 dB; mobile wireless communications; noise figure 1 dB; noise figure 2.6 dB; power 24.4 mW; size 0.13 mum; voltage 1.2 V; Attenuators; CMOS technology; Energy consumption; Gain; Impedance matching; Integrated circuit technology; Low-noise amplifiers; Noise figure; Radio frequency; Wireless communication; CMOS; attenuator; input and output match; low-noise amplifier; noise figure; receiver; transceiver; variable gain;
Conference_Titel :
Communications (MICC), 2009 IEEE 9th Malaysia International Conference on
Conference_Location :
Kuala Lumpur
Print_ISBN :
978-1-4244-5531-7
DOI :
10.1109/MICC.2009.5431457
