Title :
Comparison of various 2.4GHz LNA topologies
Author :
Djugova, Alena ; Radic, Jelena ; Videnovic-Misic, Mirjana
Author_Institution :
Dept. of Power, Electron. & Commun. Eng., Univ. of Novi Sad, Novi Sad, Serbia
Abstract :
In this paper two 2.4GHz low noise amplifier (LNA) configurations in austriamicrosystems 0.35μm SiGe BiCMOS technology are presented. Drawbacks and advantages of amplifiers in terms of their Figures of Merit (FOMs) and power consumption (PD) are showed. A current reuse LNA has voltage gain (S21) of 23.9dB, noise figure of 2.73dB and input/output return loss of -17.9dB/-14.6dB, while consuming 4.9mA from 3.3V supply. A cascade two-stage LNA achieves 24dB of voltage gain, 2.98dB of noise figure and input/output return loss of -15.5dB/-21.8dB, consuming 4.6mA from the 3.3V supply. Both amplifiers offer high circuit stability parameters.
Keywords :
BiCMOS integrated circuits; UHF amplifiers; low noise amplifiers; network topology; LNA topologies; SiGe; SiGe BiCMOS technology; austriamicrosystems; current 4.6 mA; current 4.9 mA; figures of merit; frequency 2.4 GHz; gain 23.9 dB; gain 24 dB; loss -14.6 dB; loss -15.5 dB; loss -17.9 dB; loss -21.8 dB; low noise amplifier; noise figure 2.73 dB; noise figure 2.98 dB; power consumption; size 0.35 mum; voltage 3.3 V; CMOS integrated circuits; Impedance matching; Inductors; Noise; Noise measurement; Power demand; Topology; S-parameters; current reuse technique; low noise amplifier (LNA); noise figure (NF); power consumption (PD); stability;
Conference_Titel :
Ph.D. Research in Microelectronics and Electronics (PRIME), 2010 Conference on
Conference_Location :
Berlin
Print_ISBN :
978-1-4244-7905-4
