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RESEARCH PRODUCT
Analysis of the electromagnetic radiation generated by a multipactor discharge occurring within a microwave passive component
C Miquel-espanyaS. AnzaM. TaroncherCarlos VicenteBenito GimenoM. JimenezDavid RabosoA. AlvarezVicente E. BoriaMarta RegleroFernando D. QuesadaJordi Gilsubject
Materials scienceAcoustics and Ultrasonics52.20.Fs01 natural sciencesElectromagnetic radiationlaw.inventionOpticslaw0103 physical sciences010306 general physicsTransformer84.40.Ua010302 applied physicsbusiness.industryCurrent sourceCondensed Matter PhysicsSurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialsHarmonics41.20.Jb29.27.-aEquivalent circuitRadio frequencybusinessWaveguideMicrowavedescription
International audience; Multipactoring is a non-linear phenomenon that appears in highpower microwave equipments operating under vacuum conditions and causes several undesirable effects. In this manuscript, a theoretical and experimental study of the RF spectrum radiated by a multipactor discharge, occurring within a realistic microwave component based on rectangular waveguides, is reported. The electromagnetic coupling of a multipactor current to the fundamental propagative mode of a uniform waveguide has been analyzed in the context of the microwave network theory. The discharge produced under a single-carrier RF voltage regime has been approached as a shunt current source exciting such a mode in a transmission-line gap-region. By means of a simple equivalent circuit, this model allows predicting the harmonics generated by the discharge occurring in a realistic passive waveguide component. Power spectrum radiated by a third order multipactor discharge has been measured in an E-plane silver-plated waveguide transformer, thus validating qualitatively the presented theory to simulate the noise generated by a single-carrier multipactor discharge.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2010-10-06 |