Design of a 48 GHz gyroklystron amplifier

Laurence J. R. Nix; Liang Zhang; Adrian W. Cross

doi:10.1109/TED.2021.3108746

Design of a 48 GHz gyroklystron amplifier

Laurence J. R. Nix, Liang Zhang, Adrian W. Cross

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

44 Downloads (Pure)

Abstract

The continued development of linear accelerators at higher frequencies poses several technological challenges. One such challenge is the requirement for high-frequency amplifiers to drive linearization systems. Presented in this article is the design of a 48 GHz gyroklystron amplifier appropriate for application in a harmonic linearizer for a 6 GHz or 12 GHz drive frequency. The beam used in the gyroklystron is provided by a magnetron injection gun (MIG), which has been designed using genetic optimization. The gyroklystron interaction circuit was designed with the aid of a Particle-in-Cell (PIC) simulation study which predicted 2 MW of output power at 48 GHz with a gain of 35 dB and an efficiency of 38%. This article summarizes the preceding work on the interaction circuit and MIG with additional phase stability analysis as well as presenting the design and analysis of vacuum windows, an input coupler, and the collector.

Original language	English
Pages (from-to)	5792-5798
Number of pages	7
Journal	IEEE Transactions on Electron Devices
Volume	68
Issue number	11
Early online date	6 Sept 2021
DOIs	https://doi.org/10.1109/TED.2021.3108746
Publication status	E-pub ahead of print - 6 Sept 2021

Keywords

couplers
gyroklystron
harmonic analysis
klystrons
magnetron injection gun (MIG)
microwave amplifier
microwave circuits
microwave theory and techniques
particle-in-cell (PIC) simulation
stability analysis
thermal stability
vacuum electronic devices.

Access to Document

10.1109/TED.2021.3108746

Nix-etal-IEEE-TED-2021-Design-of-a-48-GHz-gyroklystron-amplifierAccepted author manuscript, 2.07 MB

Sheet electron beam vacuum electronic devices for the generation of high power THz radiation
Cross, A. (Principal Investigator), He, W. (Co-investigator), Phelps, A. (Co-investigator) & Zhang, L. (Research Co-investigator)
EPSRC (Engineering and Physical Sciences Research Council)
5/03/19 → 4/03/21
Project: Research
Compact Light (XLS) H2020 INFRADEV-2016-2017
Cross, A. (Principal Investigator), Ronald, K. (Co-investigator) & Zhang, L. (Research Co-investigator)
European Commission - Horizon Europe + H2020
1/01/18 → 31/12/20
Project: Research
Cockcroft Institute / R160525-1
Riis, E. (Principal Investigator), Cross, A. (Co-investigator), Eliasson, B. (Co-investigator), Gray, R. (Co-investigator), Hidding, B. (Co-investigator), Jaroszynski, D. (Co-investigator), McKenna, P. (Co-investigator), McNeil, B. (Co-investigator), Ronald, K. (Co-investigator) & Sheng, Z.-M. (Co-investigator)
1/04/17 → 31/03/22
Project: Research - Internally Allocated

Cite this

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title = "Design of a 48 GHz gyroklystron amplifier",

abstract = "The continued development of linear accelerators at higher frequencies poses several technological challenges. One such challenge is the requirement for high-frequency amplifiers to drive linearization systems. Presented in this article is the design of a 48 GHz gyroklystron amplifier appropriate for application in a harmonic linearizer for a 6 GHz or 12 GHz drive frequency. The beam used in the gyroklystron is provided by a magnetron injection gun (MIG), which has been designed using genetic optimization. The gyroklystron interaction circuit was designed with the aid of a Particle-in-Cell (PIC) simulation study which predicted 2 MW of output power at 48 GHz with a gain of 35 dB and an efficiency of 38%. This article summarizes the preceding work on the interaction circuit and MIG with additional phase stability analysis as well as presenting the design and analysis of vacuum windows, an input coupler, and the collector.",

keywords = "couplers, gyroklystron, harmonic analysis, klystrons, magnetron injection gun (MIG), microwave amplifier, microwave circuits, microwave theory and techniques, particle-in-cell (PIC) simulation, stability analysis, thermal stability, vacuum electronic devices.",

author = "Nix, {Laurence J. R.} and Liang Zhang and Cross, {Adrian W.}",

note = "{\textcopyright} 2021 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting /republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.",

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AU - Nix, Laurence J. R.

AU - Zhang, Liang

AU - Cross, Adrian W.

N1 - © 2021 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting /republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

PY - 2021/9/6

Y1 - 2021/9/6

N2 - The continued development of linear accelerators at higher frequencies poses several technological challenges. One such challenge is the requirement for high-frequency amplifiers to drive linearization systems. Presented in this article is the design of a 48 GHz gyroklystron amplifier appropriate for application in a harmonic linearizer for a 6 GHz or 12 GHz drive frequency. The beam used in the gyroklystron is provided by a magnetron injection gun (MIG), which has been designed using genetic optimization. The gyroklystron interaction circuit was designed with the aid of a Particle-in-Cell (PIC) simulation study which predicted 2 MW of output power at 48 GHz with a gain of 35 dB and an efficiency of 38%. This article summarizes the preceding work on the interaction circuit and MIG with additional phase stability analysis as well as presenting the design and analysis of vacuum windows, an input coupler, and the collector.

AB - The continued development of linear accelerators at higher frequencies poses several technological challenges. One such challenge is the requirement for high-frequency amplifiers to drive linearization systems. Presented in this article is the design of a 48 GHz gyroklystron amplifier appropriate for application in a harmonic linearizer for a 6 GHz or 12 GHz drive frequency. The beam used in the gyroklystron is provided by a magnetron injection gun (MIG), which has been designed using genetic optimization. The gyroklystron interaction circuit was designed with the aid of a Particle-in-Cell (PIC) simulation study which predicted 2 MW of output power at 48 GHz with a gain of 35 dB and an efficiency of 38%. This article summarizes the preceding work on the interaction circuit and MIG with additional phase stability analysis as well as presenting the design and analysis of vacuum windows, an input coupler, and the collector.

KW - couplers

KW - gyroklystron

KW - harmonic analysis

KW - klystrons

KW - magnetron injection gun (MIG)

KW - microwave amplifier

KW - microwave circuits

KW - microwave theory and techniques

KW - particle-in-cell (PIC) simulation

KW - stability analysis

KW - thermal stability

KW - vacuum electronic devices.

U2 - 10.1109/TED.2021.3108746

DO - 10.1109/TED.2021.3108746

M3 - Article

SN - 0018-9383

VL - 68

SP - 5792

EP - 5798

JO - IEEE Transactions on Electron Devices

JF - IEEE Transactions on Electron Devices

IS - 11

ER -

Design of a 48 GHz gyroklystron amplifier

Abstract

Keywords

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Projects

Sheet electron beam vacuum electronic devices for the generation of high power THz radiation

Compact Light (XLS) H2020 INFRADEV-2016-2017

Cockcroft Institute / R160525-1

Cite this