Patent ID: 6812443
Filing Date: 2004-11-02
Classification: H05B

Abstract:
A microwave oven comprising:a heating chamber holding food therein; a magnetron generating microwaves; a radiation antenna provided in said heating chamber for radiating the microwaves generated by said magnetron into said heating chamber; and an antenna moving unit moving said radiation antenna, wherein said radiation antenna includes a first plane facing an inner wall of said heating chamber and a second plane facing said inner wall and located closer to said inner wall relative to said first plane, said first plane has an opening formed therein, and said antenna moving unit is capable of moving said radiation antenna between a first position and a second position by changing the distance between said radiation antenna and said inner wall, said radiation antenna at said first position radiating the microwaves generated by said magnetron from an edge of said opening and said radiation antenna at said second position radiating the microwaves generated by said magnetron from respective edges of said first plane and said second plane.