Smoothly profiled quasi-optical output launcher for a W-band gyro-TWA

Liang Zhang; Wenlong He; Craig R. Donaldson; Adrian W. Cross; Graham M. Smith; Duncan A. Robertson; Robert I. Hunter

doi:10.1109/UCMMT.2017.8068473

Smoothly profiled quasi-optical output launcher for a W-band gyro-TWA

Liang Zhang, Wenlong He, Craig R. Donaldson, Adrian W. Cross, Graham M. Smith, Duncan A. Robertson, Robert I. Hunter

School of Physics and Astronomy

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

A W-band quasi-optical horn with smoothly profiled circular inner surface was optimized and measured for a gyrotron traveling wave amplifier. It was designed to achieve low reflection, high fundamental Gaussian mode content and high directivity in the desired frequency range of 90 to 100 GHz. In the measurement, the reflection of the TE11 mode was lower than -37 dB and the directivity was ∼27 dB with side lobes better than -30 dB.

Original language	English
Title of host publication	2017 10th UK-Europe-China Workshop on Millimetre Waves and Terahertz Technologies, UCMMT 2017
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781538627204
DOIs	https://doi.org/10.1109/UCMMT.2017.8068473
Publication status	Published - 16 Oct 2017
Event	10th UK-Europe-China Workshop on Millimetre Waves and Terahertz Technologies, UCMMT 2017 - Liverpool, United Kingdom Duration: 11 Sept 2017 → 13 Sept 2017 Conference number: 10 https://www.liverpool.ac.uk/ucmmt2017/

Conference

Conference	10th UK-Europe-China Workshop on Millimetre Waves and Terahertz Technologies, UCMMT 2017
Abbreviated title	UCMMT
Country/Territory	United Kingdom
City	Liverpool
Period	11/09/17 → 13/09/17
Internet address	https://www.liverpool.ac.uk/ucmmt2017/

Keywords

Gaussian mode
Gyrotron traveling wave amplifier
Horn
Smoothly profiled horn

Access to Document

10.1109/UCMMT.2017.8068473

Development of a W-band-gyro: Development of a W-band gyro-amplifier for high power, wideband, pulsed coherent applications
Robertson, D. (PI)
Science & Technology Facilities Council
1/12/15 → 31/05/16
Project: Standard
CLASP: Novel Gyro-TWA amplifier for high power mm-wave radar remote sensing
Smith, G. M. (PI)
Science & Technology Facilities Council
1/05/13 → 30/04/15
Project: Standard

Cite this

Zhang, L., He, W., Donaldson, C. R., Cross, A. W., Smith, G. M., Robertson, D. A., & Hunter, R. I. (2017). Smoothly profiled quasi-optical output launcher for a W-band gyro-TWA. In 2017 10th UK-Europe-China Workshop on Millimetre Waves and Terahertz Technologies, UCMMT 2017 Article 8068473 Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/UCMMT.2017.8068473

@inproceedings{b5f1a6b268c943488833c6a1bab0bb9b,

title = "Smoothly profiled quasi-optical output launcher for a W-band gyro-TWA",

abstract = "A W-band quasi-optical horn with smoothly profiled circular inner surface was optimized and measured for a gyrotron traveling wave amplifier. It was designed to achieve low reflection, high fundamental Gaussian mode content and high directivity in the desired frequency range of 90 to 100 GHz. In the measurement, the reflection of the TE11 mode was lower than -37 dB and the directivity was ∼27 dB with side lobes better than -30 dB.",

keywords = "Gaussian mode, Gyrotron traveling wave amplifier, Horn, Smoothly profiled horn",

author = "Liang Zhang and Wenlong He and Donaldson, {Craig R.} and Cross, {Adrian W.} and Smith, {Graham M.} and Robertson, {Duncan A.} and Hunter, {Robert I.}",

note = "This work was supported by the Engineering and Physical Sciences Research Council (EPSRC) U.K. under Research Grant EP/K029746/1, and Science and Technology Facilities Council (STFC) U.K. under Research Grants ST/K006673/1 & ST/K006703/1, ST/N002326/1 & ST/N0023 18/1.; 10th UK-Europe-China Workshop on Millimetre Waves and Terahertz Technologies, UCMMT 2017, UCMMT ; Conference date: 11-09-2017 Through 13-09-2017",

year = "2017",

month = oct,

day = "16",

doi = "10.1109/UCMMT.2017.8068473",

language = "English",

booktitle = "2017 10th UK-Europe-China Workshop on Millimetre Waves and Terahertz Technologies, UCMMT 2017",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

address = "United States",

url = "https://www.liverpool.ac.uk/ucmmt2017/",

}

Zhang, L, He, W, Donaldson, CR, Cross, AW, Smith, GM , Robertson, DA & Hunter, RI 2017, Smoothly profiled quasi-optical output launcher for a W-band gyro-TWA. in 2017 10th UK-Europe-China Workshop on Millimetre Waves and Terahertz Technologies, UCMMT 2017., 8068473, Institute of Electrical and Electronics Engineers Inc., 10th UK-Europe-China Workshop on Millimetre Waves and Terahertz Technologies, UCMMT 2017, Liverpool, United Kingdom, 11/09/17. https://doi.org/10.1109/UCMMT.2017.8068473

Smoothly profiled quasi-optical output launcher for a W-band gyro-TWA. / Zhang, Liang; He, Wenlong; Donaldson, Craig R. et al.
2017 10th UK-Europe-China Workshop on Millimetre Waves and Terahertz Technologies, UCMMT 2017. Institute of Electrical and Electronics Engineers Inc., 2017. 8068473.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - Smoothly profiled quasi-optical output launcher for a W-band gyro-TWA

AU - Zhang, Liang

AU - He, Wenlong

AU - Donaldson, Craig R.

AU - Cross, Adrian W.

AU - Smith, Graham M.

AU - Robertson, Duncan A.

AU - Hunter, Robert I.

N1 - Conference code: 10

PY - 2017/10/16

Y1 - 2017/10/16

N2 - A W-band quasi-optical horn with smoothly profiled circular inner surface was optimized and measured for a gyrotron traveling wave amplifier. It was designed to achieve low reflection, high fundamental Gaussian mode content and high directivity in the desired frequency range of 90 to 100 GHz. In the measurement, the reflection of the TE11 mode was lower than -37 dB and the directivity was ∼27 dB with side lobes better than -30 dB.

AB - A W-band quasi-optical horn with smoothly profiled circular inner surface was optimized and measured for a gyrotron traveling wave amplifier. It was designed to achieve low reflection, high fundamental Gaussian mode content and high directivity in the desired frequency range of 90 to 100 GHz. In the measurement, the reflection of the TE11 mode was lower than -37 dB and the directivity was ∼27 dB with side lobes better than -30 dB.

KW - Gaussian mode

KW - Gyrotron traveling wave amplifier

KW - Horn

KW - Smoothly profiled horn

U2 - 10.1109/UCMMT.2017.8068473

DO - 10.1109/UCMMT.2017.8068473

M3 - Conference contribution

AN - SCOPUS:85037061979

BT - 2017 10th UK-Europe-China Workshop on Millimetre Waves and Terahertz Technologies, UCMMT 2017

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 10th UK-Europe-China Workshop on Millimetre Waves and Terahertz Technologies, UCMMT 2017

Y2 - 11 September 2017 through 13 September 2017

ER -

Smoothly profiled quasi-optical output launcher for a W-band gyro-TWA

Abstract

Conference

Keywords

Access to Document

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Projects

Development of a W-band-gyro: Development of a W-band gyro-amplifier for high power, wideband, pulsed coherent applications

CLASP: Novel Gyro-TWA amplifier for high power mm-wave radar remote sensing

Cite this