Abstract
We report operation of a co-axial free-electron maser (FEM) based on two-dimensional distributed feedback. The 37.3GHz FEM was driven by an annular electron beam (475kV, 500A, 250ns) and generated 15MW ±1.5MW of radiation with a 6% conversion efficiency. To investigate an increase in FEM output power and efficiency a new cavity configuration based on a copper 2D Bragg reflector is studied.
Original language | English |
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Title of host publication | The Joint 30th International Conference on Infrared and Millimeter Waves and 13th International Conference on Terahertz Electronics |
Place of Publication | New Jersey, USA |
Publisher | IEEE |
Pages | 499-500 |
Number of pages | 1 |
Volume | 2 |
ISBN (Print) | 0780393481 |
DOIs | |
Publication status | Published - 2005 |
Keywords
- feedback
- masers
- submillimetre wave devices
- 2D distributed feedback cavity
- annular electron beam
- cavity configuration
- co-axial free-electron maser
- copper 2D Bragg reflector