Relativistic L-band magnetron experiments driven by a microsecond e-beam accelerator

Michael R. Lopez; Ronald M. Gilgenbach; Christopher W. Peters; Hiroto Miyake; S. Anderson; Mark W. Johnston; Marc Keyser; Mary L. Brake; Yue Ying Lau; Thomas A. Spencer; John W. Luginsland; Raymond W. Lemke; David Price; Lars Ludeking

doi:10.1117/12.436930

15 August 2001 Relativistic L-band magnetron experiments driven by a microsecond e-beam accelerator

Michael R. Lopez, Ronald M. Gilgenbach, Christopher W. Peters, Hiroto Miyake, S. Anderson, Mark W. Johnston, Marc Keyser, Mary L. Brake, Yue Ying Lau, Thomas A. Spencer, John W. Luginsland, Raymond W. Lemke, David Price, Lars Ludeking

Author Affiliations +

Proceedings Volume 4371, Intense Microwave Pulses VIII; (2001) https://doi.org/10.1117/12.436930
Event: Aerospace/Defense Sensing, Simulation, and Controls, 2001, Orlando, FL, United States

Abstract

This research program investigates high power microwave generation utilizing a microsecond electron beam accelerator to drive a relativistic magnetron. Peak microwave power levels have been achieved exceeding 200 MW total (100 MW per-cavity for two-cavity extraction) from a six-vane structure. Time-frequency analysis shows that microwave emission is primarily single-mode with a total pulse duration in the range of 50 - 100 ns. Relativistic magnetron end-loss current measurements have been performed. Preliminary total efficiency estimates for the relativistic magnetron are in the range of 13%, including endloss current. If endloss current is subtracted, the magnetron electronic efficiency nearly doubles to 25%. The goal of future research is to explore techniques for increasing the microwave power, efficiency and pulselength of relativistic magnetrons.

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Michael R. Lopez, Ronald M. Gilgenbach, Christopher W. Peters, Hiroto Miyake, S. Anderson, Mark W. Johnston, Marc Keyser, Mary L. Brake, Yue Ying Lau, Thomas A. Spencer, John W. Luginsland, Raymond W. Lemke, David Price, and Lars Ludeking "Relativistic L-band magnetron experiments driven by a microsecond e-beam accelerator", Proc. SPIE 4371, Intense Microwave Pulses VIII, (15 August 2001); https://doi.org/10.1117/12.436930

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KEYWORDS

Microwave radiation

Diodes

Medium wave

L band

Analytical research

Electron beams

High power microwaves

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