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Electrical and Computer Engineering
Electrical and Computer Engineering Faculty Publications and Presentations
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Phase Control And Fast Start-Up Of A Magnetron Using Modulation Of An Addressable Faceted Cathode, J. Browning, S. Fernandez-Gutierrez, M. C. Lin, D. N. Smithe, J. Watrous
Phase Control And Fast Start-Up Of A Magnetron Using Modulation Of An Addressable Faceted Cathode, J. Browning, S. Fernandez-Gutierrez, M. C. Lin, D. N. Smithe, J. Watrous
Electrical and Computer Engineering Faculty Publications and Presentations
The use of an addressable, faceted cathode has been proposed as a method of modulating current injection in a magnetron to improve performance and control phase. To implement the controllable electron emission, five-sided and ten-sided faceted planar cathodes employing gated field emitters are considered as these emitters could be fabricated on flat substrates. For demonstration, the conformal finite-difference time-domain particle-in-cell simulation, as implemented in VORPAL, has been used to model a ten-cavity, rising sun magnetron using the modulated current sources and benchmarked against a typical continuous current source. For the modulated, ten-sided faceted cathode case, the electrons are injected from …