Simulation of Ku-band magnetically insulated transmission line oscillator

A Ku-band magnetically insulated transmission line oscillator(MILO) is put forward with the theoretical analysis according to dispersion characteristics of slow wave structure. Compared with common MILOs, the Ku-band MILO designed has a choke cavity whose outer radius is increased to avoid the breakdown between cathode and anode. The resonant frequency of 13.536 GHz and loaded quality factor of 43 are obtained through numerical calculation of the open cavity model of MILO. Then the structure parameters are further optimized and the impact of diode voltage on output power and efficiency is investigated with 2.5 dimensional particle-in-cell simulation. High power microwave is generated from the optimized Ku-band MILO with the average output power of 3.69 GW, central frequency of 13.62 GHz an