Strapped Magnetron Performance Affected by Dielectric Material Filling

This paper describes the output performance of a strapped vane type 2.450 ± 0.030-GHz magnetron in the presence of a dielectric material. A 3-D particle in cell software computer simulation technology has been used for this study. The side resonators (cavities) of the magnetron are partially filled with a low-loss dielectric material (ε
_r
= 11.7 and tanδ = 3.5 × 10
^-6
). The efficiency and output power of the magnetron have been increased by 2% and 10%, respectively, by dielectric material filling. It has been found that oscillation start-up time of magnetron is not directly affected by dielectric material filling as described in previous research papers. In addition, it has also been found that magnetron output performance remains almost the same for the lossless and the low-loss dielectric material.