| EPSRC Reference: |
EP/G036659/1 |
| Title: |
High power mm and sub-mm wave amplifiers for high frequency ESR/DNP, high resolution radar and remote sensing |
| Principal Investigator: |
Phelps, Professor ADR |
| Other Investigators: |
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| Researcher Co-Investigators: |
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| Project Partners: |
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| Department: |
Physics |
| Organisation: |
University of Strathclyde |
| Scheme: |
Standard Research |
| Starts: |
01 April 2009 |
Ends: |
31 March 2013 |
Value (£): |
771,109
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| EPSRC Research Topic Classifications: |
| RF & Microwave Technology |
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| EPSRC Industrial Sector Classifications: |
| No relevance to Underpinning Sectors |
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| Related Grants: |
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| Panel History: |
| Panel Date | Panel Name | Outcome |
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29 Jan 2009
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ICT Prioritisation Panel (January 2009)
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Announced
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Summary on Grant Application Form |
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In a gyrotron, electrons gyrating in a magnetic field are coupled to electromagnetic radiation in such a manner that the radiation is amplified by extracting the electron kinetic energy. We will investigate a novel concept which uses a helical corrugation on the inside surface of a 'cylindrical' waveguide to radically modify the wave dispersion giving eigenmodes with finite, constant group velocity in the region of near infinite phase velocity. This novel dispersion opens up for the first time the potential for a high power (5kW), broadband (10%), high gain >40dB, efficient (30%) gyrotron amplifier in the 90GHz to 100GHz frequency range and above. We have performed a preliminary experiment at X-band (8GHz to 10GHz) frequencies and will build on our lead to create an amplifier in the W-band (90GHz to 100GHz) frequency band based on the best understanding of this new concept and perform precision measurements of its gain, bandwidth, efficiency and stability against oscillations. New theory and computational models benchmarked against W-band experimental data will be used to demonstrate the potential for this novel amplifier to generate high frequency (360GHz to 400GHz and 460GHz to 500GHz), high power (~0.5kW), broadband (10%), pulsed and continuous coherent radiation crucially needed by the many known applications.
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Key Findings |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Potential use in non-academic contexts |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Impacts |
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| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
| Summary |
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| Date Materialised |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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| Project URL: |
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| Further Information: |
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| Organisation Website: |
http://www.strath.ac.uk |