TY - JOUR A1 - Requena Pérez, María Eugenia AU - Pedreño Molina, Juan Luis AU - Monzó Cabrera, Juan AU - Díaz Morcillo, Alejandro Benedicto T1 - Multimode cavity efficiency optimization by optimum load location-experimental approach Y1 - 2005 SN - 0018-9480 UR - http://hdl.handle.net/10317/849 AB - In this paper, a novel load-matching procedure for microwave-heating applicators is presented and tested. In order to accomplish the optimization procedure, an optimization method based on the use of the Lebenverg–Marquardt technique has been specifically developed and tested on two different microwave ovens. The proposed procedure allows an efficient optimization of three-dimensional microwave applicators by means of the dielectric sample relocation as a function of its complex permittivity, size, and operating frequency. Experimental measurements of the reflection coefficient are presented and analyzed over several samples and multimode cavities. Results indicate that high power efficiencies can be obtained provided that operating frequency is not just below TM-mode cutoff frequencies for the transverse dimensions of the oven. KW - Teoría de la Señal y las Comunicaciones KW - Calefacción electromagnética KW - Aplicadores multimodo KW - Eficiencia energética KW - Adaptación de cargas LA - eng PB - IEEE Microwave Theory and Techniques Society ER -