Microwave oven and magnetron with cold cathode

Electric heating – Microwave heating – With specific generator

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219715, 315 3951, 315 3957, 315 3971, 331 86, H05B 664, H01J 2550

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active

056768737

ABSTRACT:
There is provided a magnetron comprising a cold cathode having an electron emitting member which is formed linearly or as a plane on a substrate to emit electrons a subdivided anode disposed oppositely in parallel with the electron emitting member, the subdivided anode having cavity resonators formed therein at the side of the cold cathode, and a magnet which producing a magnetic field lying at right angles to an electric field applied between the cold cathode and the subdivided anode. There is also provided a microwave oven for dielectric-heating a substance to be heated by using the magnetron as a microwave supply source.

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patent: 5159241 (1992-10-01), Kato et al.
patent: 5162698 (1992-11-01), Kato et al.
patent: 5442255 (1995-08-01), Ise et al.
Kopylov, M.F., "Activation, stabilization degradation, and lifetime predictions of refractory thin films emitters operated in cold cathode magnetrons", Journal of Vacuum Science and Technology, Part B, vol. 12, No. 2, Mar. 1994-Apr. 1994, pp. 700-702.
McIntryre, P.M. et al., "Gigatron", IEEE Transactions of Electron Devices, vol. 36, No. 11, Nov. 1, 1989, pp. 2720-2727.
"The Magnetron-Type Traveling-Wave Amplifier Tube", Proceedings Of The I.R.E., pp. 486-495, 1960.
"FEA Crossed-Field Microwave Amplifier", pp. 70-71; Progress In Field-Emitter Development For Gigahertz Operation, pp. 148-149; and Proposal Of A High Efficiency Microwave Power Source Using A Field Emission Array, pp. 153-154, 6th IVMC, 1993.

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