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RESEARCH PRODUCT

Multipactor Mitigation in Coaxial Lines by Means of Permanent Magnets

Joaquín Vague CardonaVicente E. BoriaDaniel Gonzalez-iglesiasS. AnzaDavid RabosoBenito GimenoA.m. PerezLuis E. Solá CondeFritz CaspersJordi GilCarlos Vicente

subject

Multipactor effectMaterials scienceElectron multiplicationbusiness.industryElectrical engineeringRF breakdownPACTORAccelerators and Storage RingsElectronic Optical and Magnetic MaterialsMagnetic fieldPermanent magnetOpticsDC magnetic fieldMagnetTEORIA DE LA SEÑAL Y COMUNICACIONESCoaxial waveguidesCoaxial lineMultipactor effectCoaxial waveguideElectrical and Electronic EngineeringMultipactor mitigationbusiness

description

The main aim of this paper is the analysis of the feasibility of employing permanent magnets for the multipactor mitigation in a coaxial waveguide. First, the study of a coaxial line immersed in a uniform axial magnetic field shows that multipactor can be suppressed at any RF if the external magnetic field is strong enough. Both theoretical simulations and experimental tests validate this statement. Next, multipactor breakdown of a coaxial line immersed in a hollow cylindrical permanent magnet is analyzed. Numerical simulations show that multipactor can be suppressed in a certain RF range. The performed experimental test campaign demonstrates the capability of the magnet to avoid the multipactor electron multiplication process.

yearjournalcountryeditionlanguage
2014-12-01IEEE Transactions on Electron Devices
https://doi.org/10.1109/ted.2014.2361172