High frequency dispersing device in a microwave oven

Details High frequency dispersing device in a microwave oven High frequency dispersing device in a microwave oven

1988-01-05

1989-02-28

Leung, Philip H.

Electric heating

Metal heating

Of cylinders

219 1055E, H05B 672

Patent

active

048087840

ABSTRACT:
A specially designed waveguide is disposed in a microwave oven for evenly dispersing high frequency energy to the heating chamber of the oven. The waveguide is formed by an upper plate and base plate disposed above the heating chamber. The base plate includes a magnetron at an end portion thereof and various openings for dispersing the high frequency energy output by a magnetron antenna uniformly into the heating chamber. The upper plate covers the base plate and includes a stub and a conically shaped protrusion for reflecting and guiding the high frequency energy output from the magnetron antenna to the heating chamber through the various openings.

REFERENCES:
patent: 3210511 (1965-10-01), Smith
patent: 3641301 (1972-02-01), Ikeda
patent: 4223194 (1980-09-01), Fitzmayer
patent: 4329557 (1982-05-01), Staats
patent: 4335289 (1982-06-01), Smith

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