Design and Performance Improvements in an A6 Relativistic Magnetron Using Particle-in-cell Code

Abstract

The aim of this paper is to suggest performance improvements in an A6 relativistic magnetron (RM) using the particle-in-cell (PIC), finite difference time domain (FDTD) simulation tool. It is shown that adding conductive strappings to the resonator assists in improving π-mode performance of the device by modulating the beam velocity profile. Comparisons have been made between the performance variables of a strapped and an unstrapped relativistic magnetron. In addition, the tapered mode converting structures are investigated which also assist in the π-mode performance of the RM. Also, a review is made on the basic operation of the RM with elements from both circuit and field theory.

Enhanced efficiency of C‐band sheet beam driven backward wave oscillator guided by periodic magnetic field

“…Currently, there is a need for efficient high-power microwave radiation sources for advanced radars, security detectors, plasma chemistry reactors, material processing instruments, medical/biomedical research instruments, and so on. [1][2][3][4] Among the known sources for high power microwave (HPM) generation, the most known can be listed broadly as backward wave oscillator (BWOs), extended interaction klystron, traveling wave tubes, gyrotrons, magnetrons, free electron lasers, and so on. The relativistic backward-wave oscillators (RBWO) using the Cerenkov mechanism is one of the most promising HPM sources due to its high output power and high repetition operations.…”