| 摘要 |
PCT No. PCT/GB92/01424 Sec. 371 Date Mar. 11, 1994 Sec. 102(e) Date Mar. 11, 1994 PCT Filed Aug. 3, 1992 PCT Pub. No. WO93/03309 PCT Pub. Date Feb. 18, 1993.A microwave oven has a food-receiving cavity the rear panel of which is apertured to provide a launch area for the entry of microwave power to the cavity from a magnetron. A metal plate is positioned in front of a launch area, a central area of the plate having apertures. A forced hot air system comprising a fan and an electrical resistance heating element are positioned between the launch area and the plate. In use, the plate acts as a baffle plate for the hot air system and also as a mis-match plate for the microwave power, so that the dielectric load of food items placed in the cavity determines the microwave power coupled to the loaded oven from the magnetron.
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