Decoupling techniques in high-power magnetrons with coaxial output

The adoption of a coaxial output in high-power magnetrons can lead to significant coupling between the cathode and the output disc or aerial. RF power can travel out of the anode, along the cathode, as a result of this coupling. Two techniques to achieve suitable decoupling, thus reducing the power flowing in the sidearm, have been studied by computer modelling, and the results will be shown in the following.