An Efficient Analytical Approach for the Non-Linear Analysis of RF Amplifiers implemented with the FET Structures

Campos, Marcel Veloso; Silveira, M.

doi:10.1109/apmc.2005.1606219

Cited by 3 publications

(4 citation statements)

References 1 publication

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“…The theoretical approach presented in the Section 4 can be used for a wide class of modern power amplifiers independent of the particular modulation system that will be adopted for the design of the HDTV systems. Some experimental measurements are performed, and we make a comparison with all numerical simulations using a very powerful numerical platform, that is, the Advance Design Systems (ADS) that confirm all ours theoretical approaches [34,35].…”

Section: Introductionmentioning

confidence: 69%

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Innovative Theoretical Approaches Used for RF Power Amplifiers in Modern HDTV Systems

Silveira¹,

Silva²,

Campos³

et al. 2016

New Trends and Developments in Metrology

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The essential purpose of this chapter is to introduce theoretical and numerical approaches that can be used for modeling nonlinear effects that appear intrinsically in the design of power amplifiers that have been used widely in many modern highdensity television (HDTV) architectures. Important effects like the pre-distortion using adaptive techniques, with distinct characteristics like amplitude, phase, and frequency, as well as, their specific nature such as AM/AM, AM/PM, PM/AM, and PM/PM, and constitute one of the main directions of this research. All theoretical and technological approaches have been supported by a consistent set of numerical data performed with one of the most important platform of simulations used in the great area of Radio Frequency (RF) and Microwave structures. As a direct application, we are introducing some efficient processes that can be used for the characterization of RF systems with a set of consistent laboratorial measures that permit us to visualize the effective cost and a complete architecture for the characterization of high-power amplifiers. With the continuous and innovative technological demand that is imposed by the international marketing has a great importance to find versatile systems that are capable of measuring several amplifier characteristics, as gain, output power, inter-modulation distortion of different signals, efficiency, current, and temperature that constitute another direction of research that has been demanded strongly for news advanced technologies used widely in modern HDTV systems.

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Section: Introductionmentioning

confidence: 69%

“…It is important to emphasize that, we will obtain a transcendental equation, which demands [32][33][34][35].…”

mentioning

confidence: 99%

Innovative Theoretical Approaches Used for RF Power Amplifiers in Modern HDTV Systems

Silveira¹,

Silva²,

Campos³

et al. 2016

New Trends and Developments in Metrology

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“…Define (4) where denores Fourier transformation. The inverse transform of (4) is (5) The superposition in (3) can be represented in different mixtures of time and frequency Jacobians.…”

Section: Foundationsmentioning

confidence: 99%

“…I N disciplines requiring amplifiers, such as wireless, aerospace [1]- [3], radar [4] commercial communications [5], and electronic devices [6]- [8] we can be required to operate in nonlinear regimes to provide adequate output power for required performance. As circuits are driven into nonlinear regions of operation, the signal spectrum expands based on the harmonic coupling characteristics of the system.…”

Section: Introductionmentioning

confidence: 99%

Small Perturbation Harmonic Coupling in Nonlinear Periodicity Preservation Circuits

Baylis

Marks

2012

IEEE Trans. Circuits Syst. I

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Nonlinear systems and circuits, while required for many applications, presently require a design procedure that is often complex. In many cases, the design process is either based upon measurements or complex nonlinear models. This paper presents periodicity preservation (PP) and time invariant PP (TIPP) system theory as a simple way to characterize behavior for a significant class of nonlinear systems. PP systems preserve signal periodicity and are conducive to modeling harmonic coupling. When linearized to small perturbations, the harmonic coupling is described by the Jacobian about the operating point. The harmonic coupling weights, which are elements of the Jacobian, can be measured experimentally. For some TIPP systems such as LTI systems and memoryless nonlinearities, a single experiment suffices to determine the harmonic coupling weights. Other PP systems, including mixing and linear time variant systems, require more experimental queries. TIPP system theory is foundational to the theory of X-parameters®, S-functions and polyharmonic distortion.

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An Original Approach for the Asymmetric Pulse Width Modulation

Figueiredo

Silveira

Caputo³

2018

2018 New Trends in Signal Processing (NTSP)

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An Efficient Analytical Approach for the Non-Linear Analysis of RF Amplifiers implemented with the FET Structures

Cited by 3 publications

References 1 publication

Innovative Theoretical Approaches Used for RF Power Amplifiers in Modern HDTV Systems

Innovative Theoretical Approaches Used for RF Power Amplifiers in Modern HDTV Systems

Small Perturbation Harmonic Coupling in Nonlinear Periodicity Preservation Circuits

An Original Approach for the Asymmetric Pulse Width Modulation

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