Microwave oven field uniformity analysis

The uniformity of the averaged field inside a microwave oven has been investigated using both the theoretical and experimental methods though the performance of the current oven is still not ideal. In this paper, the field uniformity issue is studied by computer simulation, where a dyadic Green´s function is employed. This approach is very efficient, especially compared with numerical methods, and some interesting results are obtained. To improve the field uniformity, a modified design is suggested.