Title :
A new current-mode differential low noise amplifier
Author :
Jing, Ju ; Wang, Chunhua
Author_Institution :
Sch. of Comput. & Commun., Hunan Univ., Changsha, China
Abstract :
This paper presents a technique using current-mode approach for a CMOS differential low noise amplifier design, simulated with a TSMC 0.18 ¿m RF CMOS process, working at 1.2 V supply. A comparison with conventional voltage-mode LNA shows that this LNA has advantages of low voltage, low power consumption and simple structure. Simulation results demonstrate that at 2.4 GHz, the noise figure is only 1.47 dB, transconductance gain is 12.63 dB, S11 is -26.47 dB, S22 is -23.64 dB. With voltage of 1.2 V, the power consumption is 6.49 mW.
Keywords :
CMOS integrated circuits; UHF amplifiers; UHF integrated circuits; current-mode circuits; low noise amplifiers; power consumption; RF CMOS process; current-mode differential low noise amplifier; frequency 2.4 GHz; noise figure; noise figure 1.47 dB; power 6.49 mW; power consumption; size 0.18 mum; transconductance gain; voltage 1.2 V; CMOS process; Differential amplifiers; Energy consumption; Gain; Low voltage; Low-noise amplifiers; Noise figure; Radio frequency; Radiofrequency amplifiers; Transconductance; CMOS; current-mode; low noise amplifier; low power consumption; low voltage;
Conference_Titel :
Solid-State and Integrated-Circuit Technology, 2008. ICSICT 2008. 9th International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-2185-5
Electronic_ISBN :
978-1-4244-2186-2
DOI :
10.1109/ICSICT.2008.4734838
