Fig 1

Flow diagram of the hybrid domain multipactor threshold prediction algorithm with CUDA acceleration"

Fig 2

Flow diagram of the PIC-FDTD approach"

Fig 3

SEY curves of silver obtained by the Furman model"

Fig 4

SEY curves of aluminum obtained by the Furman model"

Fig 5

Model of the PIC-FDTD and PIC-CUDA-FDTD approaches simulation in the parallel copper plate"

Fig 6

Number of the secondary electronics obtained by the PIC-FDTD, PIC-CUDA-FDTD approaches and the theoretical solution"

Fig 7

Relative local error obtained by the PIC-FDTD and PIC-CUDA-FDTD approaches"

Table 1

Running time of different algorithms"

Fig 8

Model of the ridge waveguide structure"

Table 2

Time and multipactor threshold prediction of different algorithms"

Fig 9

Number of particles obtained by employing the PIC-CUDA-FDTD approach at different input powers"

Fig 10

Model of the ferrite circulator with three waveguide ports"

Fig 11

Model of front view of the multipactor sensitive region of ferrite circulator"

Fig 12

Field distribution of the ferrite circulator structure from the top view at the multipactor threshold power"

Fig 13

Number of particles and its fitting curves versus different input powers obtained by PIC-CUDA-FDTD approach"

Fig 14

Fitting curves of particles obtained by PIC-FDTD and PIC-CUDA-FDTD approaches at multipactor threshold power"

Table 3

Time and multipactor threshold prediction of different algorithms in the multipactor structure"