A new method for load matching in multimode-microwave heating applicators based on the use of dielectric-layer superposition

Usage of a dielectric multilayer around a dielectric sample is studied as a means for improving the efficiency in multimode microwave-heating cavities. The results show that by using additional dielectric constant layers the appearance of undesired reflections at the sample-air interface is avoided and higher power-absorption rates within the sample and high-efficiency designs are obtained. © 2004 Wiley Periodicals, Inc.