Title :
Effects of variation of input matching inductor on the minimum noise figure of a low noise amplifier
Author :
Salmeh, Roghoyeh
Author_Institution :
Dept. of Electr. & Comput. Eng., Calgary Univ., Alta., Canada
Abstract :
This paper describes the effects of gate inductance on noise figure of a low noise amplifier designed based on a noise optimization technique. We show that the minimum noise figure of the LNA is not very sensitive to the changes in Lg. A 1.57 GHz, 0.55 dB noise figure LNA was designed in CMOS 0.13 μm technology to confirm the validity of the theory. Powered by a 1.1 V supply the LNA features 12.9 dB of gain and is stable over a wide frequency range. The LNA draws only 1 mA and has an input return loss of -17 dB.
Keywords :
CMOS integrated circuits; circuit optimisation; inductance; inductors; integrated circuit noise; low noise amplifiers; -17 dB; 0.13 micron; 0.55 dB; 1 mA; 1.1 V; 1.57 GHz; 12.9 dB; CMOS technology; gate inductance; input matching inductor; low noise amplifier; noise optimization technique; Equations; Impedance matching; Inductors; Low-noise amplifiers; Noise figure; Resonance; Resonant frequency; Signal to noise ratio; Thermal factors; Thermal resistance;
Conference_Titel :
Circuits and Systems, 2005. 48th Midwest Symposium on
Print_ISBN :
0-7803-9197-7
DOI :
10.1109/MWSCAS.2005.1594303
