A novel time domain characterization technique of intermodulation in microwave transistors: application to the visualization of the distortion of high efficiency power amplifiers

Barataud, Denis; Mallet, Alain; Fraysse, Jean-Philippe; Blache, F.; Campovecchio, Michel; Nébus, Jean-Michel; Villoite, J.P.; Verspecht, Jan

doi:10.1109/mwsym.1997.596747

Cited by 4 publications

(2 citation statements)

References 7 publications

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“…Continuous wave (CW) waveform measurement and engineering has established itself as the optimum design solution for the development of power amplifiers [1][2][3]. However real systems involve either modulated (communications) or pulsed stimulus, it is therefore necessary to extend the capabilities of waveform measurement and engineering into this domain allowing not only optimization of traditional parameters such as output power and efficiency, but also directly linearity and memory.…”

Section: Introductionmentioning

confidence: 99%

Modulated waveform measurement and engineering system

Chaudhary

Lees

Benedikt

et al. 2015

2015 IEEE International Conference on Electronics, Circuits, and Systems (ICECS)

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This paper presents an enhanced time-domain modulated waveform measurement and engineering system. The measurement system is based around a standard sampling oscilloscope and consists of a test set which integrates both RF and IF measurement and engineering, merging the capabilities of DC, CW, and multi-tone measurement system. The aim of the system is to extend the design role of waveform measurement and engineering into the multi-tone domain allowing optimization of power amplifiers under more realistic operating conditions akin to those found in modern day wireless systems. A GaN transistor has been measured, and results are presented that highlight the capabilities and applications of the system.

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Section: Introductionmentioning

confidence: 99%

Modulated waveform measurement and engineering system

Chaudhary

Lees

Benedikt

et al. 2015

2015 IEEE International Conference on Electronics, Circuits, and Systems (ICECS)

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“…The great capabilities offered by a time-domain load-pull measurement system to aid in validating nonlinear transistor models and in designing optimized power amplifiers have already been established [6]. The idea of extending such a characterization tool to frequency NEW TIME-DOMAIN LOAD-PULL multiplier optimization appears very attractive to support the preceding design methodology which is based on the use of nonlinear device models.…”

Section: Frequency Multiplier Optimization By Characterizationmentioning

confidence: 99%

CAD oriented design methods of frequency multipliers. Application to a millimeterwave MMIC PHEMT tripler and a microwave HBT doubler

Thibaud

Barataud

Campovecchio

et al.

1999 IEEE MTT-S International Microwave Symposium Digest (Cat. No.99CH36282)

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Two specific design methods of frequency multipliers are presented. The first one is CAD oriented and based on the "Substitute Generator Technique" using nonlinear device models. The second one is based on a novel time-domain load-pull setup to measure and optimize voltagekurrent waveforms at both ports of frequency multipliers. These complementary design approaches allow to quickly and accurately determine all the optimum operating conditions for any frequency multiplier. The first design methodology is applied to the optimization of a broadband (34.5-39)GHz PHEMT MMIC tripler integrated into a transceiver manufactured at the UMS foundry. In the same way, the time-domain loadpull characterization is applied to the optimization of a S-band HBT doubler.

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Network Analysis Beyond S-parameters: Characterizing and Modeling Component Behaviour under Modulated Large-Signal Operating Conditions

Verspecht

Verbeyst

Bossche

2000

56th ARFTG Conference Digest

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Abstract-It is shown in this paper how the classical concept of the "network analyser" can be extended towards modulated and large-signal operating conditions. The concept is demonstrated by measuring the saturated behaviour of a MMIC amplifier, excited by modulated signals with CDMA characteristics. It is then illustrated how the measured data can be used to construct an accurate behavioural model.

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A novel time domain characterization technique of intermodulation in microwave transistors: application to the visualization of the distortion of high efficiency power amplifiers

Cited by 4 publications

References 7 publications

Modulated waveform measurement and engineering system

Modulated waveform measurement and engineering system

CAD oriented design methods of frequency multipliers. Application to a millimeterwave MMIC PHEMT tripler and a microwave HBT doubler

Network Analysis Beyond S-parameters: Characterizing and Modeling Component Behaviour under Modulated Large-Signal Operating Conditions

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