Abstract: Disclosed are RF power modules, and RF ovens, each having one or more RF power modules. In particular, a disclosed RF power module may include a printed circuit board (PCB) having a trace; and a radiating element having a first end portion and a second end portion. The first end portion is in electrical communication with the trace of the of PCB, and the second end portion in operable communication with a microwave cavity, and the radiating element is disposed and soldered in parallel to the trace.

Abstract: An apparatus for applying electromagnetic energy to an object in an energy application zone via at least one radiating element is disclosed. The apparatus may include at least one processor. The at least one processor may be configured to determine a value indicative of energy absorbable by the object at each of a plurality of frequencies and to cause the at least one radiating element to apply energy to the zone in at least a subset of the plurality of frequencies. Energy applied to the zone at each of the subset of frequencies may be a function of the absorbable energy value at each frequency.

Abstract: Method of irradiating a load placed in a cavity by radiating UHF or microwave radiation into the cavity. The method includes setting transmission durations, by setting for each of a plurality of frequencies, a respective transmission duration, repeatedly causing energy to be transmitted into the cavity at the plurality of frequencies according to a duty cycle, wherein the duty cycle defines an allotted transmission time for each of the plurality of frequencies, and switching ON or OFF transmission of the energy at certain frequencies, so that over a plurality of repetitions of the duty cycle the energy is transmitted at each of the plurality of frequencies for the respective transmission duration.