Abstract

This paper presents 140 GHz double-ridge-loaded folded waveguide (FWG) slow wave structure (SWS) with big electron tunnel, whose high frequency characteristics and transfer characteristics have been calculated. Compared with 140 GHz folded waveguide slow wave structure without double ridge-loaded under the same structural parameters, the double-ridge-loaded folded waveguide slow wave structure has higher interaction impedance, which can strengthen the beam-wave interaction. What's more, the transfer characteristics are pretty good.

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