Heating systems utilizing radio frequency (RF) energy and methods for using the same to rapidly and uniformly heat packaged articles moving through the system on one or more convey lines. These systems may be useful for a variety of processes, including the pasteurization or sterilization of packaged foodstuffs.

Heating systems utilizing radio frequency (RF) energy and methods for using the same to rapidly and uniformly heat packaged articles moving through the system on one or more convey lines. These systems may be useful for a variety of processes, including the pasteurization or sterilization of packaged foodstuffs.

What is provided are: two or more electrodes; a grounded surface connected to a first one of the electrodes; a signal source that is connected to a second one of the electrodes, and that outputs a high-frequency signal; a high-frequency passing heat-insulation element that is interposed serially between the signal source and the second electrode, that includes two terminals which are electrically coupled mutually and without contact with each other to electrically connect the signal source and the second electrode in a non-contact manner, and that causes the high-frequency signal outputted from the signal source to pass therethrough, by using the electric coupling between the two terminals; and a high-frequency passing heat-insulation element that is interposed serially between the grounded surface and the first electrode, that includes two terminals which are electrically coupled mutually and without contact with each other to electrically connect the grounded surface and the first electrode in a non-contact manner, and that, by using the electric coupling between the two terminals therein, outputs the high-frequency signal outputted from the signal source, to the grounded surface.

What is provided are: two or more electrodes; a grounded surface connected to a first one of the electrodes; a signal source that is connected to a second one of the electrodes, and that outputs a high-frequency signal; a high-frequency passing heat-insulation element that is interposed serially between the signal source and the second electrode, that includes two terminals which are electrically coupled mutually and without contact with each other to electrically connect the signal source and the second electrode in a non-contact manner, and that causes the high-frequency signal outputted from the signal source to pass therethrough, by using the electric coupling between the two terminals; and a high-frequency passing heat-insulation element that is interposed serially between the grounded surface and the first electrode, that includes two terminals which are electrically coupled mutually and without contact with each other to electrically connect the grounded surface and the first electrode in a non-contact manner, and that, by using the electric coupling between the two terminals therein, outputs the high-frequency signal outputted from the signal source, to the grounded surface.

An example embodiment relates to a radiofrequency (RF) power amplifier pallet, and further relates to an electronic device that includes such a pallet. The RF power amplifier pallet may include a coupled line coupler that includes a first line segment and a second line segment that is electromagnetically coupled to the first line segment. A first end of the first line segment may be electrically connected to an output of an RF amplifying unit. The RF power amplifier pallet may further include a dielectric filled waveguide having an end section of the first dielectric substrate, an end section of the second dielectric substrate, and a plurality of metal wall segments covering the end sections of the first and second dielectric layers. The plurality of metal wall segments may be arranged spaced apart from the first line segment and electrically connected to a first end of the second line segment.

An example embodiment relates to a radiofrequency (RF) power amplifier pallet, and further relates to an electronic device that includes such a pallet. The RF power amplifier pallet may include a coupled line coupler that includes a first line segment and a second line segment that is electromagnetically coupled to the first line segment. A first end of the first line segment may be electrically connected to an output of an RF amplifying unit. The RF power amplifier pallet may further include a dielectric filled waveguide having an end section of the first dielectric substrate, an end section of the second dielectric substrate, and a plurality of metal wall segments covering the end sections of the first and second dielectric layers. The plurality of metal wall segments may be arranged spaced apart from the first line segment and electrically connected to a first end of the second line segment.

A thermal increase system includes a cavity, a first electrode disposed in the cavity, a second electrode disposed in the cavity, and a self-oscillator circuit that produces a radio frequency signal that is converted into electromagnetic energy that is radiated into the cavity by the first and second electrodes. The self-oscillating circuit includes the first electrode and the second electrode. In an embodiment, the first electrode is a first plate in a capacitor structure and the second electrode is a second plate in the capacitor structure. The cavity and a load contained within the cavity operates as a capacitor dielectric of the capacitor structure. A resonant frequency of the self-oscillator circuit is at least partially determined by a capacitance value of the capacitor structure.

A thermal increase system includes a cavity, a first electrode disposed in the cavity, a second electrode disposed in the cavity, and a self-oscillator circuit that produces a radio frequency signal that is converted into electromagnetic energy that is radiated into the cavity by the first and second electrodes. The self-oscillating circuit includes the first electrode and the second electrode. In an embodiment, the first electrode is a first plate in a capacitor structure and the second electrode is a second plate in the capacitor structure. The cavity and a load contained within the cavity operates as a capacitor dielectric of the capacitor structure. A resonant frequency of the self-oscillator circuit is at least partially determined by a capacitance value of the capacitor structure.

A refrigerating and freezing device includes a cabinet defining at least one storage compartment, at least one cabinet door configured to respectively open and close the at least one storage compartment, a refrigerating system configured to provide cooling capacity to the at least one storage compartment, and a heating unit. The heating unit includes a container body disposed in one storage compartment and provided with a pick-and-place opening, a door body configured to open and close the pick-and-place opening, an electromagnetic generating system configured to generate electromagnetic waves in the container body to heat an object to be processed and a cabinet door detection device configured to detect open and closed states of the cabinet door corresponding to the storage compartment provided with the container body; wherein the electromagnetic generating system stops generating electromagnetic waves when the corresponding cabinet door is in an open state.

A refrigerating and freezing device includes a cabinet defining at least one storage compartment, at least one cabinet door configured to respectively open and close the at least one storage compartment, a refrigerating system configured to provide cooling capacity to the at least one storage compartment, and a heating unit. The heating unit includes a container body disposed in one storage compartment and provided with a pick-and-place opening, a door body configured to open and close the pick-and-place opening, an electromagnetic generating system configured to generate electromagnetic waves in the container body to heat an object to be processed and a cabinet door detection device configured to detect open and closed states of the cabinet door corresponding to the storage compartment provided with the container body; wherein the electromagnetic generating system stops generating electromagnetic waves when the corresponding cabinet door is in an open state.