Performance Improvement Study of Relativistic Magnetron Primings

A three dimensional particle-in-cell (PIC) code MAGIC-3D has been used to study the output performance of a relativistic magnetron in combined effect of electric field priming and RF magnetic field perturbations. The side resonators of the resonant structure have been loaded symmetrically at angle of 120 0 with low-loss dielectric material in the form of annular section alternating with protrusions/recessions along anode vane inner surfaces to implement the electric field priming. The 3-symmetrical metal rods at angle of 120 0 in side resonators have been used to perturb the RF magnetic field as well as tuning the frequency of oscillation. All the simulations have been performed for 2π-mode of operation on the well known A6 relativistic magnetron. The results indicate that single 2π-mode operation is not possible with such combination of electric field priming and magnetic field perturbation by dielectric loading, protrusions/recession and insertion of metal rods simultaneously.