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A Millimeter-Wave Klystron Upconverter With a Higher Order Mode Output Cavity

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A Millimeter-Wave Klystron Upconverter With a Higher Order Mode Output Cavity. / Burt, G.; Zhang, L.; Constable, D. A.; Yin, H.; Lingwood, C. J.; He, W.; Paoloni, C.; Cross, A. W.

In: IEEE Transactions on Electron Devices, Vol. 64, No. 9, 09.2017, p. 3857-3862.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Harvard

Burt, G, Zhang, L, Constable, DA, Yin, H, Lingwood, CJ, He, W, Paoloni, C & Cross, AW 2017, 'A Millimeter-Wave Klystron Upconverter With a Higher Order Mode Output Cavity', IEEE Transactions on Electron Devices, vol. 64, no. 9, pp. 3857-3862. https://doi.org/10.1109/TED.2017.2724581

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Author

Burt, G. ; Zhang, L. ; Constable, D. A. ; Yin, H. ; Lingwood, C. J. ; He, W. ; Paoloni, C. ; Cross, A. W. / A Millimeter-Wave Klystron Upconverter With a Higher Order Mode Output Cavity. In: IEEE Transactions on Electron Devices. 2017 ; Vol. 64, No. 9. pp. 3857-3862.

Bibtex

@article{ccb00814949b4daab7a03eac8a40d388,
title = "A Millimeter-Wave Klystron Upconverter With a Higher Order Mode Output Cavity",
abstract = "Manufacturing of klystrons in the millimeter-wave frequency range is challenging due to the small size of the cavities and the ratio of the maximum gap voltage to the beam energy. The small dimensions also make difficult to produce devices with the output power required by a number of applications at millimeter wave, such as communications and spectroscopy. Operating with a higher order mode can be a potential solution, as a larger transverse size structure can be used. Unfortunately, high-order mode cavities have a lower impedance than in fundamental mode. In this paper is proposed a novel solution to overcome the reduced impedance by utilizing an upconverter, where all cavities except the output cavity are designed to work in high-order mode. To demonstrate the effectiveness of the approach, two klystron upconverters were designed. One has six cavities aiming to achieve a maximum output power of $~$90 W at 105 GHz. The second klystron upconverter was a simpler three-cavity structure designed for quick prototype. Millimeter-wave measurements of the three-cavity klystron upconverter are presented.",
keywords = "Cavity resonators, Electron guns, Harmonic analysis, Impedance, Klystrons, Power generation, Trajectory, High-order mode, klystron, upconverter.",
author = "G. Burt and L. Zhang and Constable, {D. A.} and H. Yin and Lingwood, {C. J.} and W. He and C. Paoloni and Cross, {A. W.}",
note = "{\textcopyright}2017 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.",
year = "2017",
month = sep,
doi = "10.1109/TED.2017.2724581",
language = "English",
volume = "64",
pages = "3857--3862",
journal = "IEEE Transactions on Electron Devices",
issn = "0018-9383",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
number = "9",

}

RIS

TY - JOUR

T1 - A Millimeter-Wave Klystron Upconverter With a Higher Order Mode Output Cavity

AU - Burt, G.

AU - Zhang, L.

AU - Constable, D. A.

AU - Yin, H.

AU - Lingwood, C. J.

AU - He, W.

AU - Paoloni, C.

AU - Cross, A. W.

N1 - ©2017 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.

PY - 2017/9

Y1 - 2017/9

N2 - Manufacturing of klystrons in the millimeter-wave frequency range is challenging due to the small size of the cavities and the ratio of the maximum gap voltage to the beam energy. The small dimensions also make difficult to produce devices with the output power required by a number of applications at millimeter wave, such as communications and spectroscopy. Operating with a higher order mode can be a potential solution, as a larger transverse size structure can be used. Unfortunately, high-order mode cavities have a lower impedance than in fundamental mode. In this paper is proposed a novel solution to overcome the reduced impedance by utilizing an upconverter, where all cavities except the output cavity are designed to work in high-order mode. To demonstrate the effectiveness of the approach, two klystron upconverters were designed. One has six cavities aiming to achieve a maximum output power of $~$90 W at 105 GHz. The second klystron upconverter was a simpler three-cavity structure designed for quick prototype. Millimeter-wave measurements of the three-cavity klystron upconverter are presented.

AB - Manufacturing of klystrons in the millimeter-wave frequency range is challenging due to the small size of the cavities and the ratio of the maximum gap voltage to the beam energy. The small dimensions also make difficult to produce devices with the output power required by a number of applications at millimeter wave, such as communications and spectroscopy. Operating with a higher order mode can be a potential solution, as a larger transverse size structure can be used. Unfortunately, high-order mode cavities have a lower impedance than in fundamental mode. In this paper is proposed a novel solution to overcome the reduced impedance by utilizing an upconverter, where all cavities except the output cavity are designed to work in high-order mode. To demonstrate the effectiveness of the approach, two klystron upconverters were designed. One has six cavities aiming to achieve a maximum output power of $~$90 W at 105 GHz. The second klystron upconverter was a simpler three-cavity structure designed for quick prototype. Millimeter-wave measurements of the three-cavity klystron upconverter are presented.

KW - Cavity resonators

KW - Electron guns

KW - Harmonic analysis

KW - Impedance

KW - Klystrons

KW - Power generation

KW - Trajectory

KW - High-order mode

KW - klystron

KW - upconverter.

U2 - 10.1109/TED.2017.2724581

DO - 10.1109/TED.2017.2724581

M3 - Journal article

VL - 64

SP - 3857

EP - 3862

JO - IEEE Transactions on Electron Devices

JF - IEEE Transactions on Electron Devices

SN - 0018-9383

IS - 9

ER -