Hybrid Bulk-Surface Modes Excited in the THz Cherenkov Oscillator with the Double Grating
- Resource Type
- Conference
- Authors
- Khutoryan, Eduard; Vlasenko, Sergey; Kuleshov, Alexei; Ponomarenko, Sergiy; Lukin, Kostyantyn; Tatematsu, Yoshinori; Tani, Masahiko
- Source
- 2022 IEEE 2nd Ukrainian Microwave Week (UkrMW) Microwave Week (UkrMW), 2022 IEEE 2nd Ukrainian. :238-241 Nov, 2022
- Subject
- Aerospace
Bioengineering
Components, Circuits, Devices and Systems
Fields, Waves and Electromagnetics
Geoscience
Signal Processing and Analysis
Couplings
Radio frequency
Time-frequency analysis
Electron beams
Microwave oscillators
Gratings
Impedance
double grating
backward wave oscillator
THz radiation
hybrid bulk-surface mode
Cherenkov VED
nonuniform grating
sheet electron beam
- Language
The operation of the THz Cherenkov vacuum electron devices with nonuniform double gratings supporting the hybrid bulk-surface modes has been considered for an increase of a thickness of a sheet electron beam and its coupling with RF field. It is shown that advantages of a double grating configuration may comprise the increase of up to 3 times of a coupling impedance as well as a widening of the operation frequency range in comparison with the single grating configuration.