A staggered grid slow wave structure with sinusoidal function profile
A slow-wave structure and sine function technology, applied in the field of slow-wave structures, can solve the problems of low average coupling impedance and weak injection-wave interaction of slow-wave structures, so as to improve electron interaction efficiency and output power, increase electric field strength, Improve the effect of weak injection wave interaction
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[0030] In this embodiment, the sinusoidal function profile interlaced grating slow wave structure working in the G frequency band is taken as an example.
[0031] like figure 2 As shown, the staggered grid slow wave structure with sinusoidal function profile of the present invention includes a cuboid housing 21 , upper grid teeth 22 , lower cavity 23 , lower grid teeth 24 , lower cavity 25 and belt-shaped electron injection channel 26 . The structural parameters of the slow wave structure are: p=0.6mm, v min =0.29mm, w=0.84mm, t=0.1mm, h max = 0.14 mm and h min = 0.08 mm. The contours of the upper grid teeth 22 and the lower grid teeth 24 in the widthwise direction are all subject to a sine function distribution. Taking the midpoint of the left narrow side of the electron injection channel as the origin, the function corresponding to the upper grid tooth 22 is y=0.04+0.03*sin(2π / 1.68*x) (0≤x≤0.84), and the function corresponding to the lower grid tooth 24 The function is...
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