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

Paul McElhinney; Craig Donaldson; Johannes Erik McKay; Liang Zhang; Duncan Alexander Robertson; Robert Iain Hunter; Graham Murray Smith; Wenlong He; Adrian Cross

doi:10.1109/TED.2017.2660304

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

Paul McElhinney, Craig Donaldson, Johannes Erik McKay, Liang Zhang, Duncan Alexander Robertson, Robert Iain Hunter, Graham Murray Smith, Wenlong He, Adrian Cross

School of Physics and Astronomy

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

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 wave guide 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
Article number	7857760
Number of pages	4
Journal	IEEE Transactions on Electron Devices
Volume	64
Issue number	4
Early online date	16 Feb 2017
DOIs	https://doi.org/10.1109/TED.2017.2660304
Publication status	Published - Apr 2017

Keywords

Corrugated horn
Gaussian coupling
Microwave window

Access to Document

10.1109/TED.2017.2660304

McElhinney_2017_Output_IEEETransElecDev_AAM
© 2017, IEEE. This work has been made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at ieeexplore.ieee.org / https://doi.org/10.1109/TED.2017.2660304
Accepted author manuscript, 744 KB

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

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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 wave guide 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",

author = "Paul McElhinney and Craig Donaldson and McKay, {Johannes Erik} and Liang Zhang and Robertson, {Duncan Alexander} and Hunter, {Robert Iain} and Smith, {Graham Murray} and Wenlong He and Adrian Cross",

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/N002318/1.",

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AU - McElhinney, Paul

AU - Donaldson, Craig

AU - McKay, Johannes Erik

AU - Zhang, Liang

AU - Robertson, Duncan Alexander

AU - Hunter, Robert Iain

AU - Smith, Graham Murray

AU - He, Wenlong

AU - Cross, Adrian

N1 - 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/N002318/1.

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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 wave guide 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

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

Abstract

Keywords

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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