1 1Control and Systems Eng. Dept. University of Technology, Baghdad, Iraq

2 Directorate of Industrial Research and Development, Ministry of Science and Technology, Baghdad, Iraq

3 2Directorate of Industrial Research and Development, Ministry of Science and Technology, Baghdad, Iraq


The Microwave oven is a system used to convert the electromagnetic
energy to thermal energy when the microwave cavity is loaded with a dielectric
material. The ordinary microwave ovens are not supported with complex
features for detecting parameters such as temperature, weight, and loaded
material availability. Due to the lack of material availability, several laboratory
and industrial applications require these features to switch off the oven. The
reflections of electromagnetic radiation inside an empty microwave oven lead to
oven damage. An overview of the microwave oven characteristics and
emergence of electromagnetic radiation inside a microwave oven is presented
in this study. The parameters measured inside the microwave oven, methods for
power attenuation in a microwave oven, microwave power detector, and
microwave oven leakage are discussed as well. Moreover in the methodology of
this work, proposed a new technique based on the measurement of leaked
microwave power to control the microwave oven. The preliminary results
showed that the leakage measurement of electromagnetic power changes with
the state/phase of the material inside the microwave oven, which ensured the
possibility of the proposed promising technique. This work will be continued to
connect the microwave oven with a spectrum analyzer and computer via
hardware and software interfaces depending on the methodology of this article.
A computer code will be developed to read the measured power and
automatically switch off the microwave oven depending on materials state.