Self-injection-locked magnetron as an active ring resonator side coupled to a waveguide with a delayed feedback loop

TL;DR

This paper presents a theoretical and simulation study of a magnetron with a feedback loop, demonstrating that proper adjustment of delay and phase can significantly enhance output power.

Contribution

It introduces a novel approach to increase magnetron power using a feedback loop with controlled delay and phase, supported by theoretical analysis and numerical simulations.

Findings

Proper delay and phase adjustment enhances power output

Feedback loop can significantly improve magnetron efficiency

Theoretical model aligns with simulation results

Abstract

The theoretical analysis and numerical simulations of the magnetron operation with a feedback loop were performed assuming that the delay of the electromagnetic wave propagating in the loop is constant whereas the phase of the complex feedback reflection coefficient is varied. Results of simulations showed that by a proper adjustment of values of the time delay and phase of reflection coefficient that determines phase matching between the waves in the resonator and feedback loop, one can increase the magnetron's output power significantly without any other additional measures.