Coupling structure for a high Q corrugated cavity as a microwave undulator

Research output: Contribution to journalArticle

Abstract

Microwave undulators can achieve smaller wiggler periods when compared with permanent magnet undulators. This work follows on the design of a microwave undulator composed of a corrugated waveguide operating at 36 GHz. Compatible end caps and coupling structures for the waveguide to form a complete cavity were studied and are presented in this paper. Their design is scalable for different operating frequencies and periods of the corrugated waveguide. A set of empirical equations, that allows the geometry to be determined analytically, were found from the post-processing of the FDTD simulation.
LanguageEnglish
Number of pages6
JournalIEEE Transactions on Electron Devices
Publication statusAccepted/In press - 4 Aug 2019

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Wigglers
Waveguides
Microwaves
Permanent magnets
Geometry
Processing

Keywords

  • microwave undulator
  • free electron laser
  • corrugated waveguide
  • coupler

Cite this

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abstract = "Microwave undulators can achieve smaller wiggler periods when compared with permanent magnet undulators. This work follows on the design of a microwave undulator composed of a corrugated waveguide operating at 36 GHz. Compatible end caps and coupling structures for the waveguide to form a complete cavity were studied and are presented in this paper. Their design is scalable for different operating frequencies and periods of the corrugated waveguide. A set of empirical equations, that allows the geometry to be determined analytically, were found from the post-processing of the FDTD simulation.",
keywords = "microwave undulator, free electron laser, corrugated waveguide, coupler",
author = "Liang Zhang and Wenlong He and Donaldson, {Craig R.} and Jim Clarke and Kevin Ronald and Phelps, {Alan D. R.} and Cross, {Adrian W.}",
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AU - He, Wenlong

AU - Donaldson, Craig R.

AU - Clarke, Jim

AU - Ronald, Kevin

AU - Phelps, Alan D. R.

AU - Cross, Adrian W.

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N2 - Microwave undulators can achieve smaller wiggler periods when compared with permanent magnet undulators. This work follows on the design of a microwave undulator composed of a corrugated waveguide operating at 36 GHz. Compatible end caps and coupling structures for the waveguide to form a complete cavity were studied and are presented in this paper. Their design is scalable for different operating frequencies and periods of the corrugated waveguide. A set of empirical equations, that allows the geometry to be determined analytically, were found from the post-processing of the FDTD simulation.

AB - Microwave undulators can achieve smaller wiggler periods when compared with permanent magnet undulators. This work follows on the design of a microwave undulator composed of a corrugated waveguide operating at 36 GHz. Compatible end caps and coupling structures for the waveguide to form a complete cavity were studied and are presented in this paper. Their design is scalable for different operating frequencies and periods of the corrugated waveguide. A set of empirical equations, that allows the geometry to be determined analytically, were found from the post-processing of the FDTD simulation.

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