An output coupler for a W-band high power wideband gyroamplifier

McElhinney, P. , Donaldson, C. R., McKay, J. E., Zhang, L., Robertson, D. A., Hunter, R. I., Smith, G. M., He, W. and Cross, A. W. (2017) An output coupler for a W-band high power wideband gyroamplifier. IEEE Transactions on Electron Devices, 64(4), pp. 1763-1766. (doi: 10.1109/TED.2017.2660304)

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Abstract

An output coupler for a W-band high power wideband gyroamplifier has been designed, manufactured, and experimentally measured. It consists of a high performance sin 2 -parallel corrugated horn integrated with a broadband multilayer 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 ultrahigh-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.

Item Type:Articles
Additional Information: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 and ST/K006703/1, ST/N002326/1 and ST/N002318/1.
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:McElhinney, Dr Paul
Authors: McElhinney, P., Donaldson, C. R., McKay, J. E., Zhang, L., Robertson, D. A., Hunter, R. I., Smith, G. M., He, W., and Cross, A. W.
College/School:College of Medical Veterinary and Life Sciences > School of Psychology & Neuroscience
Journal Name:IEEE Transactions on Electron Devices
Publisher:IEEE
ISSN:0018-9383
ISSN (Online):1557-9646
Copyright Holders:Copyright © 2017 IEEE
First Published:First published in IEEE Transactions on Electron Devices 64(4):1763-1766
Publisher Policy:Reproduced in accordance with the copyright policy of the publisher

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