2025/05/28 by Robert Marosi, Marosi, Robert, Muhammed Zuboraj +3
Engineering · Physics and Astronomy · #FOS: Physical sciences #Gyrotron and Vacuum Electronics Research #Microwave Engineering and Waveguides #Particle Accelerators and Free-Electron Lasers #Plasma Physics (physics.plasm-ph)
paper · pdf · doi:10.48550/arxiv.2505.22927
openalex publication_date 2025/05/28 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We introduce a slow-wave structure (SWS) for a millimeter-wave sheet-beam traveling-wave tube (TWT) with wide bandwidth. The wideband and stable operation is enabled through the topological properties associated with glide-symmetry that close the bandgap at the 3π-point and also make the on-axis interaction impedance negligible for the backward wave. This space harmonic structure is designed to operate in the V-band over 55-68 GHz with synchronism to a 5.2 kV, 11 mA sheet electron beam that will be produced by a diamond field-emitter array.