Theoretical design and particle simulation of A novel compact P-band magnetically insulated transmission line oscillator

A novel compact P-band magnetically insulated transmission line oscillator (MILO) is proposed and investigated in detail by using the 2.5 D fully electromagnetic particle-in-cell code, KARAT. A special inclined configuration is designed in the slow wave structure vanes of the novel P-band MILO, and thus makes the MILO more compact. The novel compact Pband MILO is about half of the conventional one in outer diameter, with almost the same length. The simulation results show that a 630 MHz, 4.7 GW high power microwave is obtained when the beam energy is 700 keV and current is about 45 kA. The beam-to-microwave efficiency is about 14.9%. This MILO starts to oscillate at 3 ns, and the nonlinear saturation of the device occurs at about 10ns.