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Planar Microstrip Slow-Wave Structure for Low-Voltage V-Band Traveling-Wave Tube With a Sheet Electron Beam

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Slow-wave structure (SWS) is a core part of a traveling-wave-tube (TWT) amplifier. In this letter, the planar microstrip meander SWS on a dielectric substrate at $V$ -band (50–70 GHz) is… Click to show full abstract

Slow-wave structure (SWS) is a core part of a traveling-wave-tube (TWT) amplifier. In this letter, the planar microstrip meander SWS on a dielectric substrate at $V$ -band (50–70 GHz) is studied. The basic electromagnetic parameters of the SWS are calculated. The SWS circuits are designed and fabricated, and good transmission characteristics are measured. The SWS developed is characterized by a wide bandwidth and a relatively-large slow-wave factor, and is suitable for a low-voltage TWT with the sheet electron beam.

Keywords: wave structure; wave; wave tube; electron; slow wave; traveling wave

Journal Title: IEEE Electron Device Letters
Year Published: 2018

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