Uniform heating apparatus for microwave oven and method thereof

A uniform apparatus for microwave oven, comprising:

• an oscillator unit having a wave guide tube for guiding microwaves generated by a magnetron to a lower portion of a heating chamber formed in a microwave oven main body, the waveguide tube being vertically formed on a lateral surface of the oscillator unit and being extended to a lower portion of a heating chamber of the microwave oven;
• a resonant mode conversion unit for converting the microwaves guided to the lower portion of the heating chamber to have various resonant modes, said resonant mode conversion unit including:
• a circularly-shaped agitating plate having a predetermined thickness and diameter, the circularly-shaped agitating plate being positioned on an upper portion of another plate which is provided on a portion extending from the waveguide tube;
• and
• a motor for rotatable driving the agitating plate,
• and wherein in an upper surface of the agitating plate of the resonant mode conversion unit are formed a plurality of parallel slots formed therein at a regular interval whereby the microwaves guided by the wave guide tube are converted thereby to have various resonant modes,
• sensor means for detecting the characteristics of a food when the microwaves, the resonant mode of which are converted by the resonant mode conversion unit, are supplied to the food in the heating chamber, said sensor means comprising a weight sensor for weighing a food and a microwave sensor for detecting microwaves transmitted through a food to be cooked and reflected by the food;
• and
• a controller for controlling the oscillator and the resonant mode conversion unit in accordance with the characteristics of the food detected by the sensor means.