| 摘要 |
PURPOSE: A slot antenna of a microwave oven is provided to achieve improvements enabling the slot to be unrestrictedly designed, the waveguide to have an easily contractable size, and the current flowing through the slot to be minimized while arranging at least three slots at the waveguide. CONSTITUTION: A slot antenna of a microwave oven which heats or cooks food in a cavity using microwaves generated from a magnetron being supplied with a high voltage, the slot antenna comprising a waveguide for guiding the microwaves into the cavity, a first slot(102) formed at a contact surface between the waveguide and the cavity in a direction at which the microwaves proceed, a second slot(103) separated from the first slot(102) by a predetermined spacing and formed in a direction same as that of the first slot, and a third slot(104) formed between the first slot and the second slot at a predetermined angle.
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