Influence of Load Location in Mode Tuning of Microwave Ovens

Abstract

AbstractA theoretical investigation is made of the effect of varying the location of the load in tuning behaviour of microwave ovens. Effect of dielectric losses is also taken into account. The computed data are for the dimensions of a rectangular cavity of a commercial microwave oven and at the heating frequency of 915 MHz. The analysis concerns both transverse electric (TE) and transverse magnetic (TM) modes, using ‘the transverse resonance method’. Profiles of resonant frequency of several modes are given as a function of thickness, dielectric properties, and location of the processed material.