NDLI: A Novel Experimental Noise Power Ratio Characterization Method for Multicarrier Microwave Power Amplifiers

Content Provider	IEEE Xplore Digital Library
Author	Reveyrand, T. Barataud, D. Lajoinie, J. Campovecchio, M. Nebus, J.-M. Ngoya, E. Sombrin, J. Roques, D.
Copyright Year	2000
Description	Author affiliation: ALCATEL SPACE INDUSTRIES ¿ 26, Av. Jean-Francois Champollion, BP 1187, 31037 TOULOUSE Cedex (France) (Roques, D.) \|\| IRCOM - UMR n°6615 - 123, Av. Albert Thomas, 87060 LIMOGES Cedex (France) (Reveyrand, T.; Barataud, D.; Lajoinie, J.; Campovecchio, M.; Nebus, J.-M.; Ngoya, E.) \|\| CNES ¿ 18, Av. E. Belin, 31401 TOULOUSE Cedex (France) (Sombrin, J.)
Abstract	The linearity characterization of multicarrier power amplifiers in terms of Noise Power Ratio (NPR) is now well adopted. The use of an analog band pass noise source with a notch in the center bandwidth is currently used for this purpose. We present in this paper a novel NPR measurement technique based on a numerical generation of a gaussian noise. This experimental noise generation is similar to the technique used in non linear circuit level or system level simulations using the envelope transient technique. The measurement principle is based on the use of a baseband arbitrary waveform generator (AWG) and an upconverter chain from baseband to L or S band. The large signal Noise stimuli drive the amplifier under test. The output signal of the amplifier is downconverted back to baseband and the resulting complex envelope is recorded with a sampling scope and computed for NPR extraction. A comparison of NPR measurements obtained with our method and with the conventional analog noise source technique is presented. Other possible applications of our measurement system are also mentioned and emphasize the capabilities of the proposed characterization tool.
Starting Page	1
Ending Page	5
File Size	184873
Page Count	5
File Format	PDF
ISBN	0780356861
DOI	10.1109/ARFTG.2000.327395
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2000-06-15
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Signal to noise ratio Microwave theory and techniques Microwave amplifiers Power amplifiers Circuit noise Baseband Linearity Bandwidth Measurement techniques Gaussian noise
Content Type	Text
Resource Type	Article

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