Table 4 Structural parameters of the FW SWS.

From: Design of a miniaturized terahertz traveling wave tube with embedded single-walled carbon nanotubes cold cathode

Parameters

Values (mm)

Width of the broad side of the FW SWS (a)

0.75

Width of the narrow side of the FW SWS (b)

0.14

Length of the straight part of the FW SWS (h)

0.22

Period of the FW SWS (p)

0.21

Radius of the beam tunnel (r)

0.1

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