NDLI: IM3 and IM5 phase characterization and analysis based on a simplified Newton approach

Content Provider	IEEE Xplore Digital Library
Author	Crespo-Cadenas, C. Reina-Tosina, J. Madero-Ayora, M.J.
Copyright Year	1963
Abstract	A simplified Newton method is developed to deduce closed-form expressions for two-tone third- and fifth-order intermodulation magnitude and phase predictions in nonlinear microwave circuits, taking advantage of the attractive convergence properties of Newton-based algorithms. The new approach has provided theoretical data for comparison with experimental results acquired with an automated setup for the characterization of phase asymmetries in two-tone measurements. The empirical method generates the tones in a coherent form and supports the evaluation of effects dependent on baseband impedance and tone separation. A high electron-mobility transistor amplifier under two-tone excitation has been widely characterized using the experimental setup, and measurements have been compared with simulated data showing a good agreement. The theoretical method is empowered with its capability to predict fifth-order effects in a form simpler than the conventional Volterra-series approach
Sponsorship	IEEE Microwave Theory and Techniques Society
Starting Page	321
Ending Page	328
Page Count	8
File Size	367519
File Format	PDF
ISSN	00189480
Volume Number	54
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Newton method Closed-form solution Microwave theory and techniques Microwave circuits Convergence Phase measurement Baseband Impedance HEMTs MODFETs two-tone test setup Amplifier distortion electrical memory effects intermodulation (IM) products phase asymmetries simplified Newton (SN) approach
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electrical and Electronic Engineering Radiation

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