Microwave oven with means for modifying energy distribution ther

Details Microwave oven with means for modifying energy distribution ther Microwave oven with means for modifying energy distribution ther

1978-12-26

1980-09-16

Grimley, Arthur T.

Electric heating

Metal heating

Of cylinders

219 1055R, H05B 906

Patent

active

042231949

ABSTRACT:
A microwave oven with an electrically conductive surface such as a flat metal plate positioned parallel to the bottom of the oven cavity and spaced therefrom by approximately one tenth the wavelength in free space .lambda.a of the excitation microwave energy.The width of the plate is an odd multiple of a quarter wavelength (.lambda.a/4) and the depth is an even multiple of .lambda.a/4. Preferably the plate is spaced an odd multiple of .lambda.a/4 from the feed aperture at the top of the oven cavity.The edges of the plate are spaced from the vertical side walls of the oven cavity, at least in that region of the cavity where the microwave energy level would be greatest in the absence of the plate.

REFERENCES:
patent: 2961520 (1960-11-01), Long
patent: 3218429 (1965-11-01), Lenart
patent: 3591751 (1971-07-01), Goltsos
patent: 3740514 (1973-06-01), Anderson

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