Title :
A 130 nm CMOS LNA for 30 GHz applications
Author :
Ribeiro, Ricardo ; Mendes, Luís ; Vaz, João C. ; Rosário, Maria J. ; Freire, João C.
Author_Institution :
Inst. Politec. de Leiria, Escola Super. de Tecnol. e Gestao, Leiria, Portugal
Abstract :
This paper presents the design of a 30 GHz low noise amplifier in a 130 nm CMOS technology. The amplifier is based on a cascode topology. The circuit uses autotransformers in the input and output matching networks. This design approach eliminates the necessity of the use of source degeneration and allows obtaining an ultra compact LNA. The amplifier presents a forward gain (S21) of 7.4 dB at 30 GHz with a bandwidth of 10 GHz, input and output VSWRs better than 1.22:1 and a noise figure of 3.7 dB. The LNA is unconditionally stable and consumes only 7 mW when supplied with 1.2 V. The amplifier fits an area of 0.08 mm2, which is one of the smallest areas reported.
Keywords :
CMOS analogue integrated circuits; MMIC amplifiers; MMIC oscillators; field effect MMIC; low noise amplifiers; CMOS LNA; autotransformers; bandwidth 10 GHz; cascode topology; frequency 30 GHz; gain 7.4 dB; input matching networks; low noise amplifier; noise figure 3.7 dB; output matching networks; power 7 mW; size 130 nm; voltage 1.2 V; CMOS integrated circuits; CMOS technology; Gain; Impedance matching; Noise; Noise figure; cascode; low noise amplifier; milimeter wave;
Conference_Titel :
EUROCON - International Conference on Computer as a Tool (EUROCON), 2011 IEEE
Conference_Location :
Lisbon
Print_ISBN :
978-1-4244-7486-8
DOI :
10.1109/EUROCON.2011.5929383
