Title :
MMSE matching for low noise amplifier
Author :
Lerdworatawee, Jongrit ; Narngoong, W.
Author_Institution :
Dept. of Electr. Eng., Univ. of Southern California, Los Angeles, CA, USA
Abstract :
This paper presents a new theoretical framework for designing the minimum mean squared error (MMSE) matching network for a low noise amplifier (LNA). The MMSE matching network is determined by reformulating the matching problem as a continuous-time estimation problem and solving for the Wiener-Hopf equation. Since the MMSE matching network is in general difficult to implement, a constrained MMSE matching network is also presented. The resulting noise factor of the LNA is computed and compared against different matching strategies.
Keywords :
amplifiers; circuit noise; estimation theory; impedance matching; least mean squares methods; network synthesis; LNA; MMSE matching network design; Wiener-Hopf equation; constrained MMSE matching network; continuous-time estimation problem; low noise amplifier; minimum mean squared error; noise factor; Distortion; Equations; Frequency; Impedance; Low-noise amplifiers; Noise measurement; Receiving antennas; Signal design; Signal to noise ratio; Voltage;
Conference_Titel :
Circuits and Systems, 2002. ISCAS 2002. IEEE International Symposium on
Print_ISBN :
0-7803-7448-7
DOI :
10.1109/ISCAS.2002.1010736
