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.
Citation
McElhinney , P , Donaldson , C , McKay , J E , Zhang , L , Robertson , D A , Hunter , R I , Smith , G M , He , W & Cross , A 2017 , ' An output coupler for a W-band high power wideband gyro-amplifier ' , IEEE Transactions on Electron Devices , vol. 64 , no. 4 , 7857760 . https://doi.org/10.1109/TED.2017.2660304
Publication
IEEE Transactions on Electron Devices
Status
Peer reviewed
ISSN
0018-9383Type
Journal article
Description
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.Collections
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