Design of a Novel High Power V-Band Helix-Folded Waveguide Cascaded Traveling Wave Tube Amplifier

Table 1

Parameters of the helix slow-wave structure.

Parameter	Value
Helix radius ()	0.25 mm
Helix tape thickness	0.08 mm
Helix tape width	0.20 mm
Helix pitch	0.45–0.55 mm
Rod material	APBN
Rode wedge angle ()	30 deg
Shield radius ()	1.2 mm