Search Results - "Barataud, Denis"
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1
Single and dual input packaged 5.5-6.5GHz, 20W, Quasi-MMIC GaN-HEMT Doherty Power Amplifier
Published in 2017 IEEE MTT-S International Microwave Symposium (IMS) (01-06-2017)“…This paper presents the design, the realization and the power characteristics of plastic low cost packaged symmetric Doherty Power Amplifiers (DPA) operating…”
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2
X-Band Sampling Technology Demonstration
Published in 2019 8th International Workshop on Tracking, Telemetry and Command Systems for Space Applications (TTC) (01-09-2019)“…The technical objective of this project is to simplify the Ground Station architecture currently used by European Space Agency in Deep Space Antenna by…”
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3
Measured and Simulated Impact of Irregular Radar Pulse Trains on the Pulse-to-Pulse Stability of Microwave Power Amplifiers
Published in IEEE transactions on microwave theory and techniques (01-12-2014)“…This paper investigates the impact of irregular pulsed RF signals on the pulse-to-pulse (P2P) stability of a microwave power GaN HEMT amplifier. This study is…”
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4
An Envelope Tracking oriented, 17-20GHz, Average 64QAM Modulated 2W, PAE>37%, OBO 8dB GaN MMIC Power Amplifier
Published in 2023 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits (INMMIC) (08-11-2023)“…This article presents the design and the realization of a 4W reactively-matched Power Amplifier (PA), in GaN MMIC technology operating in the 17-20 GHz band…”
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5
On-Wafer Single-Pulse Thermal Load-Pull RF Characterization of Trapping Phenomena in AlGaN/GaN HEMTs
Published in IEEE transactions on microwave theory and techniques (01-03-2016)“…In this paper, a new characterization method, which allows the determination of the time constants of traps in AlGaN/GaN high electron-mobility transistors is…”
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6
Characterization of Defects in AlGaN/GaN HEMTs Based on Nonlinear Microwave Current Transient Spectroscopy
Published in IEEE transactions on electron devices (01-05-2017)“…This paper presents a new nonlinear microwave-based characterization methodology for the study of the deep levels proprieties in gallium nitride (GaN)-based…”
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7
Ultra-Fast (13ns) Low Frequency/Microwave Transient Measurements, Application to GaN Transistors Characterization of Pulse to Pulse Stability
Published in 2019 IEEE MTT-S International Microwave Symposium (IMS) (01-06-2019)“…This paper describes an on-wafer fully calibrated characterization system of GaN power transistors for the simultaneous and coherent extraction of, on the one…”
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8
Continuous time-domain RF waveforms monitoring under overdrive stress condition of AlGaN/GaN HEMTs
Published in Microelectronics and reliability (01-09-2016)“…This paper reports an advanced time-domain methodology to investigate the device reliability and determine its safe operating area of AlGaN/GaN HEMTs. The…”
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9
Non-linear electro-thermal AlGaN/GaN model including large-signal dynamic thermal-trapping effects
Published in 2016 IEEE MTT-S International Microwave Symposium (IMS) (01-05-2016)“…This paper presents a non-linear electro-thermal AlGaN/GaN model for CAD application with a new additive thermal-trap model to take into account the dynamic…”
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10
On-wafer time-domain measurement of pulse-to-pulse stability for microwave power GaN HEMT
Published in 2017 IEEE MTT-S International Microwave Symposium (IMS) (01-06-2017)“…For the first time, on-wafer time-domain envelope measurements of pulse-to-pulse (P2P) stability are reported in this paper. In the case of a radar burst,…”
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11
Wideband 50W packaged GaN HEMT with over 60% PAE through internal harmonic control in S-band
Published in 2012 IEEE/MTT-S International Microwave Symposium Digest (01-06-2012)“…This paper presents an internally-matched packaged GaN HEMT for achieving not only high-efficiency and high-power performances but also wide bandwidth and…”
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12
Time-domain envelope measurements and simulations of pulse-to-pulse stability in microwave power amplifiers
Published in 2014 IEEE MTT-S International Microwave Symposium (IMS2014) (01-06-2014)“…This paper presents a new measurement system based on heterodyne receiver to characterize the impact of irregular pulsed signals on the pulse-to-pulse (P2P)…”
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13
LABENVI, un dispositif pour les travaux pratiques à distance : Présentation et analyse des nouveaux usages
Published in Interfaces numériques (01-01-2018)“…Le projet LABENVI (laboratoire d’enseignement virtuel) de l’Université de Limoges offre aux apprenants éloignés la possibilité d’effectuer des travaux…”
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14
Broadband Time-Domain Measurement System for the Characterization of Nonlinear Microwave Devices With Memory
Published in IEEE transactions on microwave theory and techniques (01-04-2010)“…This paper describes a novel fully calibrated four channel broadband time-domain measurement system for the characterization of nonlinear microwave devices…”
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15
Trap characterization of AlGaN/GaN HEMTs through drain current measurements under pulsed-RF large-signal excitation
Published in 2015 IEEE MTT-S International Microwave Symposium (01-05-2015)“…An advanced microwave characterization technique has been developed to determine the trapping and detrapping time constants due to wide Pulsed-RF large-signal…”
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16
Compact Design of a L-Band 40W 40MHz Envelope Tracking GaN Power Amplifier for Small Cells
Published in 2021 51st European Microwave Conference (EuMC) (04-04-2022)“…Envelope Tracking (ET) greatly enhances the efficiency of High Power Amplifiers (HPA) driven by modulated signals associated with high Peak-to-Average Power…”
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17
High Current - High Speed Dynamic Bias Control System Applied to a 100W Wideband Push-Pull Amplifier
Published in IEEE transactions on microwave theory and techniques (01-12-2008)“…This paper presents a dynamic bias control system applied to a high power wideband amplifier. The amplifier used is based on a push-pull topology with LDMOS…”
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18
Note on the Determination of the Offset Lines in Doherty Power Amplifiers
Published in IEEE microwave and wireless components letters (01-06-2018)“…This letter shows how to find by inspection, the values of the characteristic impedances and the electrical lengths of the offset lines of the main and…”
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19
Time-Domain Calibrated Measurements of Wideband Multisines Using a Large-Signal Network Analyzer
Published in IEEE transactions on microwave theory and techniques (01-05-2008)“…This paper presents a calibrated measurement technique that enables phase and magnitude measurements of wideband multisines. This study is based on the use of…”
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20
Comparison of Harmonic Balance Simulated and Measured Ultra-short Low Frequency/Microwave Transients in Pulse to Pulse Characterization of GaN transistors
Published in 2019 14th European Microwave Integrated Circuits Conference (EuMIC) (01-09-2019)“…This paper describes, for the first time to our knowledge, a comparison of Pulse to Pulse (P2P) performances of an AlGaN/GaN HEMT obtained, experimentally on…”
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