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Abstract
The design of two fundamental mode rectangular-to-circular waveguide input couplers for a low-terahertz gyrotron-traveling wave amplifier (gyro-TWA) is presented. A T-junction input coupler with a Bragg reflector and a multiple-hole directional coupler were optimized for operation between 360 and 384 GHz, the proposed gyro-TWA bandwidth. The T-junction coupler and the multiple-hole coupler achieved the respective bandwidths of 10% and 35%. The benefits and potential limitations of the low-terahertz wave coupler topologies are discussed alongside the challenging manufacturing methods of the submillimeter-wave components.
Original language | English |
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Pages (from-to) | 497-503 |
Number of pages | 7 |
Journal | IEEE Transactions on Electron Devices |
Volume | 63 |
Issue number | 1 |
Early online date | 26 Nov 2015 |
DOIs | |
Publication status | Published - 31 Jan 2016 |
Keywords
- gyrotron-traveling wave amplifier (gyro-TWA)
- mode coupling
- terahertz input coupler
- waveguide coupler
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Dive into the research topics of 'Design study of a fundamental mode input coupler for a 372-GHz gyro-TWA I: rectangular-to-circular coupling methods'. Together they form a unique fingerprint.Projects
- 2 Finished
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Gyrotron Travelling Wave Amplifier for high field Electron Paramagnetic Resonance
Cross, A., He, W. & Ronald, K.
EPSRC (Engineering and Physical Sciences Research Council)
1/06/13 → 30/11/16
Project: Research
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Epsrc Doctoral Training Grant | Garner, Jason
Cross, A., He, W. & Garner, J.
EPSRC (Engineering and Physical Sciences Research Council)
1/10/12 → 23/02/18
Project: Research Studentship - Internally Allocated