Journal ArticleDOI
Application of Volterra series to intermodulation distortion analysis of transistor feedback amplifiers
TLDR
In this paper, the authors analyzed the intermodulation distortion of a solid-state feedback amplifier and showed that the feedback is fully effective in reducing the open-loop second-order distortion.Abstract:
This paper analyzes the intermodulation distortion of a solid-state feedback amplifier. Each transistor of the amplifier has been represented by a frequency-dependent model incorporating four nonlinearities. The Volterra series is used as the analysis tool. The primary motivation for this study is that intermodulation distortion is a critical problem in high-frequency long-haul solidstate systems. A computer program that calculates the amplifier intermodulation distortion has been developed. This program can be used to select the optimum bias point of each stage, optimum interstage and feedback networks, and optimum load and source impedances. Good correlation between calculated and measured results was obtained. The closed-form expressions derived show that the feedback is fully effective in reducing the open-loop second-order distortion and that the feedback may not significantly reduce the open-loop third-order distortion, if the "second-order interaction" phenomenon is dominant. The second-order interaction is explained in detail in this paper.read more
Citations
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Book ChapterDOI
Low-Noise Wide-Band Amplifiers with Capacitive Sources: Camps
Zhong Yuan Chang,Willy Sansen +1 more
TL;DR: In many Hi-Fi application circuits such as AM/FM radio receivers, video cassette recorders, etc, the information to be received is in the form of an electromagnetic field that is converted into electrical currents or voltages by means of an inductive coil such as the ferrite antenna of a radio receiver or magnetic head of a recorder.
Proceedings ArticleDOI
Equalization of Volterra systems using a multilinear SVD based pseudo p th order inverse
TL;DR: In this article, a multilinear extension of the SVD is proposed to factor third and higher order kernels into terms that are easily implemented. But this approach is not suitable for nonlinear systems.
Proceedings ArticleDOI
A 180nm CMOS three stage feedforward compensation op-amp with linearity improvement technique for active RC LPF
Wenxin Wu,Tingting Mo,Zhijian Lu +2 more
TL;DR: The nonlinearity analysis of the full differential operational amplifier (op-amp) and Cascade System are introduced and a multistage op-amp with feedforward compensation (FFC) and linearity improvement technique circuit is designed.
Proceedings ArticleDOI
Volterra series simulations of RF intermodulation characteristics of SiGe HBT's
TL;DR: In this article, a systematic analysis of two-tone intermodulation in UHV/CVD SiGe HBT's is performed using the Volterra series approach, and the impact of source and load impedance, frequency, tone-spacing, and CB feedback are examined.
Dissertation
Intermodulation distortion performance enhancement of microwave power amplifiers
TL;DR: In this paper, the effects of the injection of specific signals on the intermodulation distortion performance of microwave power amplifiers are investigated, and theoretical, simulation and practical results are presented, analysed and compared.
References
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Continuous nonlinear systems
TL;DR: In this paper, a thesis submitted to M.I.T. Dept. of Electrical Engineering, July 24, 1959, is described, based on which the following paper is presented:
Journal ArticleDOI
Transistor distortion analysis using volterra series representation
TL;DR: In this article, the second and third harmonic distortion for a given set of input frequencies and transistor parameters is computed using the Volterra series representation, where the nonlinear nodal equations are solved by expressing nodal voltages in terms of the VOLTERRA series expansion of the input voltage.
Journal ArticleDOI
The Use of Functionals in the Analysis of Non-linear Physical Systems†
TL;DR: In this paper, the authors present a systematic development of this idea and present analogous expansions in a series of terms orthogonal with respect to input statistics, which is applicable equally to linear or non-linear systems.
ReportDOI
Theory of the analysis of nonlinear systems
TL;DR: This thesis is based on a thesis submitted to M.I.T. Dept. of Electrical Engineering, January 13, 1958 and aims to provide a history of electrical engineering in the United States.
Journal ArticleDOI
Functional Analysis Applied to Nonlinear Feedback Systems
TL;DR: An operator theory is outlined for the general, nonlinear, feedback loop and it is shown that feedback reduces distortion for band-limited inputs and an iteration whose rate of convergence is optimized is derived.