Circular-arc microstrip curve plane slow wave device
An arc-shaped, microstrip technology, applied in the field of semi-circular arc-shaped microstrip curve plane slow-wave devices, can solve the problems of low coupling impedance and output power, difficult to meet the requirements of strength, poor heat dissipation, etc., to improve the coupling impedance and Effects of output power, improved strength and heat dissipation, and avoidance of reflections
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[0017] In this embodiment, an arc-shaped microstrip curved planar slow-wave device working in the 90-110 GHz band is taken as an example, in which: the substrate 1 (length×width×thickness) is 14.72×0.5×0.05mm, and the material is Purity 99wt%, relative permittivity ε r =4, boron nitride with loss tangent tanδ=0.00025; the line body (length×width×thickness) of the microstrip line 2 is 81.48×0.04×0.015mm, the material is metal Cu, and the microstrip curve has a total of 92 periods. The microstrip curve is 14.72mm long along the electron beam direction (that is, each cycle is 0.16mm long along the electron beam direction), the interval between two adjacent parallel microstrips is 0.04mm, and the inner radius of the semicircular microstrip curve at the connection part Both are R0.02mm; the metal shell 4 (length×width×height) is 14.72×0.6×0.4mm; when used together, the front and rear ends are respectively connected to the electron gun and collector of the traveling wave tube. In t...
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