| 摘要 |
A radio-frequency heating apparatus of the present invention includes: a phase varying unit (103a, 103b) to vary the phase of radio-frequency power; a plurality of antennas (104a, 104b) which are placed on the same plane in a heating chamber (101) and radiate a plurality of radio-frequency waves, the radio-frequency waves having a predetermined phase difference caused by phase variation in the phase varying unit; a geometry information acquisition unit (120) to acquire the geometry of an object (150); and a control unit (130) controls phase varying units (103a, 103b) so that the radio-frequency waves are in phase in a first mode, and the radio-frequency waves are in opposite phase in a second mode, the control unit (130) switches between the first mode and the second mode based on the acquired geometry information. |
