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 | |
| Publication status | E-pub ahead of print - 16 Feb 2017 |
Fingerprint
Keywords
- corrugated horn
- Gaussian coupling
- microwave window
- W-band
- gyro-amplifier
- high power
- wideband
- input return loss
Cite this
McElhinney, P., Donaldson, C. R., McKay, J. E., Zhang, L., Robertson, D. A., Hunter, R. I., ... Cross, A. W. (2017). An output coupler for a W-band high power wideband gyro-amplifier. IEEE Transactions on Electron Devices. https://doi.org/10.1109/TED.2017.2660304