Title :
Additive noise of combined amplifiers
Author :
Galani, Zvi ; Bianchini, Michael J. ; Smith, Elizabeth A.
Author_Institution :
Raytheon Co., Tewksbury, MA, USA
fDate :
6/15/1905 12:00:00 AM
Abstract :
Analytical predictions of additive noise in combined amplifiers and their experimental verification are presented. The analysis addresses both random and deterministic noise processes, and in each case the signal-to-noise ratio of combined amplifiers is compared to that of an individual amplifier inside the combiner. The signal-to-noise ratio of combined amplifiers improves for uncorrelated random noise, but remains unchanged for all other types, including noise figure.
Keywords :
electron device noise; microwave amplifiers; power amplifiers; random noise; SNR; additive noise; combined amplifiers; combiner; deterministic noise; noise figure; radar; signal-to-noise ratio; solid state amplifiers; uncorrelated random noise; Additive noise; Noise figure; Noise generators; Noise level; Phase noise; Power amplifiers; Power generation; Signal to noise ratio; Transmitters; Voltage;
Conference_Titel :
Radar Conference, 1993., Record of the 1993 IEEE National
Conference_Location :
Lynnfield, MA, USA
Print_ISBN :
0-7803-0934-0
DOI :
10.1109/NRC.1993.270465
