An output coupler for a W-band high power wideband gyro-amplifier

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

doi:10.1109/TED.2017.2660304

An output coupler for a W-band high power wideband gyro-amplifier

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

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

22 Citations (Scopus)

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Abstract

An output coupler for a W-band high power wideband gyro-amplifier has been designed, manufactured and experimentally measured. It consists of a high performance sin2-parallel corrugated horn integrated with a broadband multi-layer window. The major design requirements are that the horn/window combination must have an input return loss lower than -30 dB over a 10 GHz bandwidth, provide a high quality output beam pattern, and operate under ultra-high vacuum conditions. The coupler converts a circular waveguide TE11 mode into the free space Laguerre Gaussian LG00 mode over the frequency band of 90–100 GHz with a measured return loss of between -30 and -40 dB and a simulated Gaussian coupling efficiency of over 99% at 94 GHz.

Original language	English
Number of pages	4
Journal	IEEE Transactions on Electron Devices
Early online date	16 Feb 2017
DOIs	https://doi.org/10.1109/TED.2017.2660304
Publication status	E-pub ahead of print - 16 Feb 2017

Keywords

corrugated horn
Gaussian coupling
microwave window
W-band
gyro-amplifier
high power
wideband
input return loss

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10.1109/TED.2017.2660304

McElhinney-etal-IEEETED2017-An-output-coupler-for-a-W-band-high-power-wideband-gyro-amplifierAccepted author manuscript, 740 KB

Cite this

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title = "An output coupler for a W-band high power wideband gyro-amplifier",

abstract = "An output coupler for a W-band high power wideband gyro-amplifier has been designed, manufactured and experimentally measured. It consists of a high performance sin2-parallel corrugated horn integrated with a broadband multi-layer window. The major design requirements are that the horn/window combination must have an input return loss lower than -30 dB over a 10 GHz bandwidth, provide a high quality output beam pattern, and operate under ultra-high vacuum conditions. The coupler converts a circular waveguide TE11 mode into the free space Laguerre Gaussian LG00 mode over the frequency band of 90–100 GHz with a measured return loss of between -30 and -40 dB and a simulated Gaussian coupling efficiency of over 99% at 94 GHz. ",

keywords = "corrugated horn, Gaussian coupling, microwave window, W-band, gyro-amplifier, high power, wideband, input return loss",

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

note = "(c) 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, 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 components of this work in other works.",

year = "2017",

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doi = "10.1109/TED.2017.2660304",

language = "English",

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AU - McElhinney, Paul

AU - Donaldson, Craig R.

AU - McKay, Johannes E.

AU - Zhang, Liang

AU - Robertson, Duncan A.

AU - Hunter, Robert I.

AU - Smith, Graham M.

AU - He, Wenlong

AU - Cross, Adrian W.

N1 - (c) 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, 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 components of this work in other works.

PY - 2017/2/16

Y1 - 2017/2/16

N2 - An output coupler for a W-band high power wideband gyro-amplifier has been designed, manufactured and experimentally measured. It consists of a high performance sin2-parallel corrugated horn integrated with a broadband multi-layer window. The major design requirements are that the horn/window combination must have an input return loss lower than -30 dB over a 10 GHz bandwidth, provide a high quality output beam pattern, and operate under ultra-high vacuum conditions. The coupler converts a circular waveguide TE11 mode into the free space Laguerre Gaussian LG00 mode over the frequency band of 90–100 GHz with a measured return loss of between -30 and -40 dB and a simulated Gaussian coupling efficiency of over 99% at 94 GHz.

AB - An output coupler for a W-band high power wideband gyro-amplifier has been designed, manufactured and experimentally measured. It consists of a high performance sin2-parallel corrugated horn integrated with a broadband multi-layer window. The major design requirements are that the horn/window combination must have an input return loss lower than -30 dB over a 10 GHz bandwidth, provide a high quality output beam pattern, and operate under ultra-high vacuum conditions. The coupler converts a circular waveguide TE11 mode into the free space Laguerre Gaussian LG00 mode over the frequency band of 90–100 GHz with a measured return loss of between -30 and -40 dB and a simulated Gaussian coupling efficiency of over 99% at 94 GHz.

KW - corrugated horn

KW - Gaussian coupling

KW - microwave window

KW - W-band

KW - gyro-amplifier

KW - high power

KW - wideband

KW - input return loss

UR - http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=16

U2 - 10.1109/TED.2017.2660304

DO - 10.1109/TED.2017.2660304

M3 - Article

JO - IEEE Transactions on Electron Devices

JF - IEEE Transactions on Electron Devices

SN - 0018-9383

ER -

An output coupler for a W-band high power wideband gyro-amplifier

Abstract

Keywords

Access to Document

Other files and links

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

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

Components measurement data for project "Gyrotron TWA for High Field EPR and high field DNP"

Cite this

An output coupler for a W-band high power wideband gyro-amplifier

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Projects

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

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

Datasets

Components measurement data for project "Gyrotron TWA for High Field EPR and high field DNP"

Cite this