Electric heating – Microwave heating – Field modification
Patent
1997-07-30
1999-02-23
Leung, Philip H.
Electric heating
Microwave heating
Field modification
219745, 219748, H05B 674
Patent
active
058747150
ABSTRACT:
An even heating apparatus for converting microwave energy emitted from a magnetron to a plurality of resonant modes in a heating chamber of a microwave oven for thereby evenly heating the food in the heating chamber includes an antenna array plate including a plurality of antennas therein. The apparatus evenly heats food in the heating chamber by fixing the antenna array plate having multiple antennas therein spaced from the ceiling of the heating chamber.
REFERENCES:
patent: 2562911 (1951-08-01), Hare
patent: 2704802 (1955-03-01), Blass et al.
patent: 3263052 (1966-07-01), Jeppson et al.
patent: 3430022 (1969-02-01), Cougoule
patent: 3810248 (1974-05-01), Risman et al.
patent: 4210793 (1980-07-01), Fournet-Fayas
patent: 4354083 (1982-10-01), Staats
Leung Philip H.
LG Electronics Inc.
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