Minimizing Radiation Leakage from Microwave Ovens

In this article, an effective solution to minimize radiation leakage from microwave ovens, a microwave "choke" is discussed. This greatly simplified choke design was recommended to the manufacturer, was built, and was tested for functionality. It exhibited the very low leakage sought to meet health and safety considerations. This choke design was found to be economical to manufacture, very reliable, and very tolerant of the spacing between door and oven chamber. The choke was adopted for oven manufacture since it addressed feasibility, safety issues, and economy. In current microwave ovens, the choke is hidden from view by an opaque plastic strip near the oven cavity periphery. The strip can be easily cleaned to remove food spillage that would inhibit choke effectiveness.