Novel vacuum electronic devices based on reversed cherenkov radiation

In this paper, we present a square waveguide loaded by planar complementary electric split ring resonators (CeSRRs), which is considered as a novel slowwave structure (SWS). The transmission characteristics of the novel SWS are studied by simulation. The results indicate that the novel SWS have good transmission characteristics at the operating frequencies. On this basis, the beam-wave interaction is studied by particle-in-cell (PIC) simulations to verify the reversed Cherenkov radiation (RCR). The results show that the novel SWS interacting with the sheet beam can generate output power of ~ 4 MW at the beam entrance. The proposed novel SWS can be developed into novel vacuum devices.