| 摘要 |
FIELD: personal demand items. ^ SUBSTANCE: invetion can be used for dielectric objects, particularly for food warming. Microwave oven has an operating room with a door, microwave energy source, controlling system and waveguide antenna array. Waveguide antenna array of serial feed is made in a low, wide waveguide wall, which forms the roof of operating room. In a low, wide waveguide wall there are H-shaped slots for communication. Each of them is supplied with two pairs of pin-diodes. Controlling system produces signals for pin diodes pairs operating. Operating signals are synchronised with ultra-high frequency power impulses of magnetron in such a manner, that the position of diodes with the next microwave power impulse changes in one or several pairs. Changing the position of pin-diodes electromagnetic field configuration in operating room also changes that lead to the equal energy liberation within warming object or food and the effect is more uniform heating. ^ EFFECT: improvement of dielectric objects and food uniform heating in microwave oven. ^ 3 dwg |
