Simulation of magnetrons and crossed-field amplifiers

Abstract

Describes a computer program for simulation of the magnetron oscillator and crossed-field amplifiers. Emphasis is placed on accuracy and efficient computation with moderate numbers of electrons and moderately large time steps. Distinctive features are (1) space-charge field evaluation by Buneman's cycle reduction method and separate treatment of electrons near the cathode; (2) circuit field and electronic induction calculation by use of a Ramo (Green's) function, accounting for space-harmonics; (3) calculation of RF network response by means of Green's functions; (4) predictor/corrector evaluation of average RF signals; and (5) use of fifth-degree power series calculation of electron trajectories. The simulation is illustrated in the starting of oscillations from computer noise.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>