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Ashraf, Majid; Jayasuriya, A.; Perreau, Sylvie

doi:10.1002/dac.v22:1

Cited by 5 publications

(3 citation statements)

References 142 publications

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“…This procedure presents a mean value of several results that were performed, such that it is possible to establish a comparison with the actual measurements and those ones we have made previously. If more tests are realized more precise, they become and the mean curve can be adjusted more conveniently, as it is being presented in Figure 32 [22][23][24][25][26][42][43][44][45][46][47].…”

Section: New Trends and Developments In Metrologymentioning

confidence: 99%

“…This means expensive and specialized setups capable of performing the necessary measurements [36][37][38][39][40][41][42][43][44][45]. In Section 5, we present a high performance and low-cost setup designed for test and characterization of RF high-power amplifiers, capable of generate reports that will help the operator to decide about the conformity of the equipment with other ones tested, as we can see in the characterization of a power drawer [46][47][48][49][50][51][52].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

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: New Trends and Developments In Metrologymentioning

confidence: 99%

Section: Introductionmentioning

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

View full text Add to dashboard Cite

show abstract

“…Intermodulation reports can also be used to analyze peak-to-average ratio of digital signals as in [7][8][9][10], broadening the range of applications of the measurement setup. Another possibility is to use the measurement setup to validate noise analysis as well as to validate some studies for uplinks for cognate radio architectures made for the OFDM system, as in [11,12].…”

Section: An Innovative Architecture For the Measurement Setupmentioning

confidence: 99%

Low cost measurement system for broadcast power amplifiers

Silveira

Lima²,

Silveira

2013

Int J Communication

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SUMMARY For the fast prototyping, production, and delivery of commercial radio frequency products/systems, accurate and reliable test systems are necessary. These systems are usually product customized and thus expensive solutions, capable of performing all necessary measurements for a specific product. The purpose of this paper is to present a flexible cost‐effective test solution, capable of realizing all necessary measurement on a high output power amplifier system greater than 500 W, and to generate essential reports. These reports allow the system operator to (i) perform an analysis and a statistical comparison among various products, assuring that the quality is the same for all products; and (ii) retain products that present a performance poorer than other similar products, without a rigorous technical analysis, thus increasing efficiency in factory assembly line. Copyright © 2013 John Wiley & Sons, Ltd.

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2009

Int J Communication

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Cited by 5 publications

References 142 publications

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

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

Low cost measurement system for broadcast power amplifiers

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