The donutron is an all-metal squirrel-cage magnetron. It is a multisegment magnetron with a single resonant structure. It is tuned by the relative axial displacement of alternate anode segments, ...

A tutorial overview is presented on the principles of operation, physical modeling, and design procedures for the class of planar radiators known as Fabry-Perot cavity antennas (FPCAs), with an ...

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