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US 11,201,028 B2Granted
Traveling wave tube amplifier having a helical slow-wave structure supported by a cylindrical scaffold
AssigneesWisconsin Alumni Research Foundation, The Regents of the University of New Mexico
InventorsMax G. Lagally, Matthew McLean Dwyer, Francesca Cavallo, Daniel Warren van der Weide, Abhishek Bhat
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Abstract
Traveling-wave tube amplifiers for high-frequency signals, including terahertz signals, and methods for making a slow-wave structure for the traveling-wave tube amplifiers are provided. The slow-wave structures include helical conductors that are self-assembled via the release and relaxation of strained films from a sacrificial growth substrate.
Claims14
A traveling wave tube amplifier comprising:
- a slow-wave structure comprising:
- a cylindrical scaffold comprising a dielectric film, the cylindrical scaffold having an interior surface;
- and
- an electrically conductive helix on the interior surface of the cylindrical scaffold, the electrically conductive helix comprising a plurality of electrically conductive strips connected end-to-end;
- an electron gun positioned to direct one or more beams of electrons axially through the electrically conductive helix or around the periphery of the electrically conductive helix;
- and
- an electron collector positioned opposite the electron gun.
4 more elements
Dependencies are inferred from the claim text.