Abstract:Magnetron is currently one kind of the most widely used vacuum electronic devices. The cathode, as the electronic source of the device, is the core of magnetrons. With the development of magnetrons, the requirements for cathode performance are also increasing, including thermal electron emission and secondary electron emission performance. This article reviews the development history of cathodes used in magnetrons, discusses the performance and application fields of various cathodes, and the relationship betwe… Show more
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