0000000000470992

AUTHOR

O. Monerris

showing 4 related works from this author

Enhancement of the Multipactor Threshold Inside Nonrectangular Iris

2018

Multipactor breakdown is studied inside the capacitive iris of a rectangular waveguide with a skewed slot along its longitudinal cross section. Both the iris length and height are assumed to be small compared to the electromagnetic wavelength. Therefore, the quasi-static approximation is applied so as to describe the RF field distribution inside the iris gap, whereas a 2-D model is used to analyze the electron motion. The peculiarities of RF field structure are studied using the conformal mapping approach, which shows that the electric field lines can be approximated by circular arcs when the iris length is much larger than its height. The electron motion inside the iris gap is analyzed usi…

010302 applied physicsPhysicsField linebusiness.industryField effectConformal mapElectron01 natural sciences010305 fluids & plasmasElectronic Optical and Magnetic Materials[SPI.TRON]Engineering Sciences [physics]/ElectronicsCross section (physics)Wavelengthmedicine.anatomical_structureOptics0103 physical sciencesmedicineRadio frequencyElectrical and Electronic EngineeringIris (anatomy)businessComputingMilieux_MISCELLANEOUS
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Multipactor RF Breakdown in Coaxial Transmission Lines With Digitally Modulated Signals

2016

The aim of this paper is the study of the RF multipactor breakdown in coaxial transmission lines excited by a single carrier with a digitally modulated signal. Employing an in-house developed code, numerical simulations are performed to determine the RF multipactor voltage threshold for several digitally modulated signals under different modulations schemes: quadrature phase-shift keying, 16-quadrature amplitude modulation, 16-amplitude and phase-shift keying, and 32-amplitude and phase-shift keying. Moreover, a coarse method based on the envelope integration to determine the RF multipactor voltage threshold when involving arbitrary digital modulations is also presented. These results are a…

Multipactor effectEngineeringAcoustics02 engineering and technology01 natural sciences010305 fluids & plasmasHarmonic analysisAmplitude modulationDigital modulationTEORIA DE LA SEÑAL Y COMUNICACIONES0103 physical sciences0202 electrical engineering electronic engineering information engineeringElectronic engineeringElectrical and Electronic EngineeringQuadrature amplitude modulation (QAM)Coaxial waveguidesbusiness.industry20-gap-crossing ruleRoot-raised-cosine filterRF breakdown020206 networking & telecommunicationsKeyingElectronic Optical and Magnetic MaterialsElectric power transmissionAmplitude and phaseshift keying (APSK)Multipactor effectRadio frequencybusinessQuadrature phase-shift keying (QPSK)Phase-shift keyingVoltageIEEE Transactions on Electron Devices
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Novel multipactor studies in RF satellite payloads: Single-carrier digital modulated signals and ferrite materials

2017

In this work it is reviewed the most novel advances in the multipactor RF breakdown risk assessment devoted to RF satellite microwave passive devices employed in space telecommunication systems. On one side, it is studied the effect of transmitting a single-carrier digital modulated signal in the multipactor RF voltage threshold in a coaxial line. On the other hand, an analysis of the multipactor phenomenon in a parallel-plate waveguide containing a magnetized ferrite slab it is presented.

010302 applied physicsEngineeringComputer simulationbusiness.industryElectrical engineering01 natural sciencesElectronic mailThreshold voltage0103 physical sciencesDigital modulationOptoelectronicsCoaxial lineFerrite (magnet)Ferrite materialsRadio frequencybusinessMicrowaveVoltageMultipactor
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Recent advances of the multipactor RF breakdown in RF satellite microwave passive devices

2016

The main goal of this work is the review of the recent advances in the study of the multipactor RF breakdown phenomenon in RF satellite microwave passive devices for space telecommunication applications developed in the Val Space Consortium. In this work several topics related with the multipactor phenomenon will be discussed.

03 medical and health sciences0302 clinical medicineMaterials scienceNuclear magnetic resonance0202 electrical engineering electronic engineering information engineering020206 networking & telecommunicationsSatellite02 engineering and technologyRadio frequencyEngineering physics030217 neurology & neurosurgeryMicrowaveBreakdown phenomenon2016 Progress in Electromagnetic Research Symposium (PIERS)
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