Design and development of field emission based rising sun magnetron for industrial applications

ORAL

Abstract

The magnetron is widely used in radars and also well-known as a low-cost microwave source for microwave ovens, which generates microwaves based on the interaction of a stream of moving electrons under a cross electric and magnetic fields with a series of open coupled metal cavity resonators. In this work, a field emission based magnetron is investigated for industrial applications as an easier configuration and longer lifetime can be expected. The design and development are performed using a conformal finite-difference time-domain particle-in-cell simulations. The goal of this research is to design and develop magnetrons operating at a frequency of 2.45 GHz and at a working power of \textgreater 3 kW for industrial applications. A preliminary design after the optimization could achieve the required power at a high efficiency of \textgreater 78{\%}. One of the advantages is the fabrication and assembly can be much simplified compared with those of a conventional strapped magnetron based on a thermionic cathode.

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Authors

  • Ling Li

    Department of Electrical and Biomedical Engineering, Hanyang University, Seoul 04763, South Korea

  • Kaviya Aranganadin

    Department of Electrical and Biomedical Engineering, Hanyang University, Seoul 04763, South Korea

  • Ming-Chieh Lin

    Department of Electrical and Biomedical Engineering, Hanyang University, Korea, Department of Electrical and Biomedical Engineering, Hanyang University, Seoul 04763, South Korea, Department of Electrical and Biomedical Engineering, Hanyang University,

  • Hua-Yi Hsu

    Department of Mechanical Engineering, National Taipei University of Technology, Taipei 10608, Taiwan, National Taipei University of Technology, Department of Mechanical Engineering