Design Study of a High-Power Ka-Band High-Order-Mode Multibeam Klystron

Jinchi Cai; Igor Syratchev; Graeme Burt

doi:10.1109/TED.2020.3028348

Design Study of a High-Power Ka-Band High-Order-Mode Multibeam Klystron

Jinchi Cai, Igor Syratchev, Graeme Burt

CERN

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3 Citations (Scopus)

46 Downloads (Pure)

Abstract

Compactness and cost-effectiveness are two major concerns in the development of a Ka-band linearizer, which is a crucial accelerator component of the European
CompactLight project. A higher order mode (HOM) multibeam Klystron (MBK) could accommodate a higher distributed electron current with a low operating voltage of 60 kV, thus making it competitive to deliver high RF power at high frequency compared with a single beam Klystron or a fundamental mode MBK. In this article, the modeling and design study of the 36-GHz HOM MBK is presented.
The development of a double compression multibeam (MB) optics system is also elaborated in this article. The performance validation of such a device was done using sophisticated 3-D particle-in-cell (PIC) computer simulations of the
entire device. PIC simulations confirmed that a power level of 2.5 MW is attainable with an efficiency of 35%.

Original language	English
Pages (from-to)	5736 - 5742
Number of pages	7
Journal	IEEE Transactions on Electron Devices
Volume	67
Issue number	12
Early online date	20/10/2020
DOIs	https://doi.org/10.1109/TED.2020.3028348
Publication status	Published - 1/12/2020

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10.1109/TED.2020.3028348

IEEE_Ka_band_HOM_MBK_v3.1
©2020 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Accepted author manuscript, 2.27 MBLicence: CC BY-NC: Creative Commons Attribution-NonCommercial 4.0 International License

https://ieeexplore.ieee.org/document/9234072

High efficiency Klystons
Burt, G. (Principal Investigator)
CERN - FAP Department
1/01/20 → 31/12/22
Project: Research

Cite this

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abstract = "Compactness and cost-effectiveness are two major concerns in the development of a Ka-band linearizer, which is a crucial accelerator component of the EuropeanCompactLight project. A higher order mode (HOM) multibeam Klystron (MBK) could accommodate a higher distributed electron current with a low operating voltage of 60 kV, thus making it competitive to deliver high RF power at high frequency compared with a single beam Klystron or a fundamental mode MBK. In this article, the modeling and design study of the 36-GHz HOM MBK is presented.The development of a double compression multibeam (MB) optics system is also elaborated in this article. The performance validation of such a device was done using sophisticated 3-D particle-in-cell (PIC) computer simulations of theentire device. PIC simulations confirmed that a power level of 2.5 MW is attainable with an efficiency of 35%.",

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N2 - Compactness and cost-effectiveness are two major concerns in the development of a Ka-band linearizer, which is a crucial accelerator component of the EuropeanCompactLight project. A higher order mode (HOM) multibeam Klystron (MBK) could accommodate a higher distributed electron current with a low operating voltage of 60 kV, thus making it competitive to deliver high RF power at high frequency compared with a single beam Klystron or a fundamental mode MBK. In this article, the modeling and design study of the 36-GHz HOM MBK is presented.The development of a double compression multibeam (MB) optics system is also elaborated in this article. The performance validation of such a device was done using sophisticated 3-D particle-in-cell (PIC) computer simulations of theentire device. PIC simulations confirmed that a power level of 2.5 MW is attainable with an efficiency of 35%.

AB - Compactness and cost-effectiveness are two major concerns in the development of a Ka-band linearizer, which is a crucial accelerator component of the EuropeanCompactLight project. A higher order mode (HOM) multibeam Klystron (MBK) could accommodate a higher distributed electron current with a low operating voltage of 60 kV, thus making it competitive to deliver high RF power at high frequency compared with a single beam Klystron or a fundamental mode MBK. In this article, the modeling and design study of the 36-GHz HOM MBK is presented.The development of a double compression multibeam (MB) optics system is also elaborated in this article. The performance validation of such a device was done using sophisticated 3-D particle-in-cell (PIC) computer simulations of theentire device. PIC simulations confirmed that a power level of 2.5 MW is attainable with an efficiency of 35%.

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JO - IEEE Transactions on Electron Devices

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IS - 12

ER -

Design Study of a High-Power Ka-Band High-Order-Mode Multibeam Klystron

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High efficiency Klystons

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