Dynamics of Multipacting in Rectangular Coupler Waveguides and Suppression Methods
نویسنده
چکیده
Two methods can be used to suppress multipacting in a rectangular coupler waveguide. The slotted waveguide method calls for opening slots on the broad walls in the wave propagation direction that perturb the resonance and trap multipacting electrons. The DC magnetic bias method utilizes a solenoid coil wrapped around the waveguide to generate a mild DC magnetic field in the waveguide space that bends the trajectory of multipacting electrons. Electron stimulated desorption plays a critical role in the dynamics of multipacting induced breakdown. Ionization discharge of desorbed gases is the direct cause for RF breakdown. Adequate pumping for the coupler waveguide is essential for a smooth operation.
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