MICROWAVE OVEN FIELD STIRRER

摘要

A microwave oven having a field stirrer comprising a circular sheet metal disc having a plurality of radial slots arranged about its periphery. The ends of the segments thus formed are preferably bent at different angles. The slots and segments together form semiresonant elements to which the energy from the microwave generator couples directly and then is reradiated by the rotating disc which acts as a moving virtual energy source. The disc is rotated so that the segments pass by the microwave energy coupling aperture for the oven. The oven combination produces a more uniform microwave energy distribution within the oven cavity and also improves the matching of the microwave generator to the cavity load so that the generator operates in the load region most suitable to the application.