Fig. 1. Model of a parallel-plate waveguide loaded by a single dielectric layer

Fig. 2. Structure and field distribution of a dielectric-loaded parallel-plate waveguide

Fig. 3. Secondary electron yield (SEY) of silver based on Vaughan’s model

Fig. 4. Scheme of secondary emission velocity v_em, polar angle θ_em and azimuth angle φ_em with incident velocity v_im and incident angle θ_im

Fig. 5. Dynamic evolution of population of electrons for three cases

Fig. 6. Instantaneous secondary electron yield (SEY) versus time

Fig. 7. Normalized reflected wave voltage versus time

Fig. 8. Gap voltage between the dielectric surface and upper metallic plate surface versus time

Fig. 9. Electron distribution versus time for case 3

Fig. 10. Charge density on the surface of dielectric versus time for case 3

Fig. 11. Electron energy distribution versus position for case 2 in saturation state

Fig. 12. Electron energy distribution versus position for case 3 in saturation state

Fig. 13. Electron energy distribution versus position for case 3 in extinguishing state