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INTERNAL LOAD FOR TRAVELLING WAVE TUBE USING FOLDED-WAVEGUIDE SLOW-WAVE STRUCTURE
INTERNAL LOAD FOR TRAVELLING WAVE TUBE USING FOLDED-WAVEGUIDE SLOW-WAVE STRUCTURE
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机译：折叠波导管慢波结构在行波管的内部载荷
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摘要
To provide an internal load for a travelling wave tube using a folded-waveguide slow-wave structure where the reflections of the load are minimized, and the attenuation of electromagnetic energy is not abrupt.SOLUTION: A folded-waveguide slow-wave structure includes at least one groove (25) of variable cross section, which is formed along the longitudinal axis (z) of a waveguide in at least one face internal to the waveguide of a lower plate (23), an upper plate (24) or a central plate (20), and which at least partially contains a lossy material, in order to form a closed slow-wave structure through which a hybrid slow wave propagates, the amplitude of the wave being attenuated by at least 20 dB between the start and the end of the portion of the one or more grooves containing a lossy material.SELECTED DRAWING: Figure 8
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