Whirlpool Corporation

Panasonic Holdings Corporation

Giovanni Dore

Francesco Giordano

Davide Guatta

Nelson Rene Garcia-Polanco

Roberto Di Martino

Edoardo De Titta

A method of determining heating strategies for a cooking appliance () includes obtaining geometry dimensions, power values, and frequency values of the cooking appliance (), selecting a food item () and obtaining a food geometry, permittivity value, and initial temperature of the selected food item (). A heating pattern () for heating the selected food item () is estimated based on the food geometry, permittivity value, and initial temperature of the selected food item () and data indicative of the estimated heating pattern () is inputted to an operating control system () to achieve the estimated heating strategy.

Method and apparatus for determining heating strategies

A method for diagnosing an electromagnetic cooking device includes selecting a frequency from a set of frequencies in a bandwidth of radio frequency electromagnetic waves; setting a subset of a set of radio frequency feeds to output a radio frequency signal of the selected frequency; measuring a forward power level for the subset of the set of radio frequency feeds that is outputting the radio frequency signal; measuring a forward and backward power level for the set of radio frequency feeds; and processing the measurements of the forward and backward power levels to determine an operating condition of the electromagnetic cooking device based on the processing of the measurements of the forward and backward power levels.

Method of diagnosing an electromagnetic cooking device

The microwave heating apparatus () includes a cavity () arranged to receive a load (A,B), at least two patch antennas (A,B) coupled to the at least one microwave generator (), and a control unit (). Each of the at least two patch antennas (A,B) is configured to radiate microwaves into a predefined direct heating zone (A,B) within the cavity proximate the respective patch antenna (A,B). The control unit () is configured to select energy levels for each of the at least two patch antennas (A,B) as if the load (A,B) were static and as if there not interference between the at least two patch antennas (A,B).

Direct heating through patch antennas

An electromagnetic cooking device includes a heating cavity and at least one electromagnetic energy source configured to generate radiation in communication with the heating cavity via a supply cavity. The cooking apparatus further includes a first port configured to emit the radiation into a first region of the heating cavity from the supply cavity and a second port configured to emit the radiation into a second region of the heating cavity from the supply cavity. A septum is disposed along the supply cavity. The septum is configured to adjust a proportion of the radiation emitted from the first port and the second port into the heating cavity.

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Arezzo, Italy

Giovanni Dore