Patent ID: 7388180

Claim:
A microwave oven, comprising: a cooking chamber; a magnetron for generating a microwave; a waveguide for guiding the microwave from the magnetron toward the cooking chamber; an antenna between the cooking chamber and the waveguide for propagating the microwave guided by the waveguide into the cooking chamber; and a driving unit for moving the antenna along a first direction and rotating the antenna, wherein the driving unit includes: a motor to rotate the antenna; a pinion rotatably connected to a shaft of the antenna; a guide member on the waveguide, the guide member having a rack corresponding to the pinion to guide the pinion to reciprocally move the antenna along the rack in the first direction; a connection link swingably connected to a lower end of the shaft of the antenna; and a rotation link swingably connected to the connection link and secured to a motor shaft of the motor.