Question

To avoid difficulties with strapping at high frequencies the type of cavity structure used in the magnetron be

Answer 1

The correct answer should be - Rising Sun.

Rising Sun magnetrons come with a huge number of cavities in it. This modification in the geometry of the cavity allows for a favorable redistribution of the spectra of the resonant modes of the rising sun structure. Therefore, it makes it possible to operate the magnetron in the desired π‐mode without having any disturbance from other modes.