A device includes an output circuit that includes an input port at which a signal is received, an output port at which an impedance-adjusted representation of the signal is provided, and a set of bond wires connecting the input and output ports. The device further includes first and second couplers, each including a respective coupling bond wire along the set of bond wires for inductive coupling with the set of bond wires. The first coupler is oriented relative to the distributed-element output circuit to measure forward power provided by the impedance-adjusted representation of the signal via the output port. The second coupler is oriented relative to the output circuit to measure reflected power received via the output port.

In a heating cooker, when an image of an inside of heating compartment (12) is captured by imaging unit (19) before heating, controller (100) determines whether or not the image can be recognized by recognition unit (103). When the image cannot be recognized by recognition unit (103), controller (100) determines that capturing cannot be performed due to existence of a blade portion of stirrer blade (14a) in front of imaging unit (19), and drives motor (15a) by controlling rotation controller (102) thus rotating stirrer blade (14a) by a predetermined angle.

A cooking apparatus is provided. The cooking apparatus includes a cooking surface and a plurality of antennas coupled to the cooking surface. Each antenna in the plurality of antennas is configured to radiate radio frequency energy to generate heat in food over the cooking surface. The cooking apparatus includes a radio frequency power module configured to transmit electrical signals to the plurality of antennas to cause each antenna in the plurality of antennas to radiate the radio frequency energy.

The invention discloses a new embodiment concept and components for drying articles in an energy-efficient and effective way. The embodiment has a stationary drum accommodating a grid with several underneath nozzles at the bottom for blowing compressed hot air into articles and moving them within the space. A magnetron generates microwaves inside the drum for evaporating articles' moisture. A reciprocating compressor vacuums out the hot vapor and compresses it again in a high-pressure three-layer multifunctional tank after passing through a set of moisture separators to be reused by the nozzles in a closed cycle. Several low-maintenance and durable Membrane Dryers are used in parallel as a moisture separator unit before the compressor. Condensed and separated liquid is used in a heat exchanger to warm the makeup air needed for membranes. Nozzles' on/off states, the magnetron and compressor are controlled by a closed-loop digital controller for achieving an optimized drying process.

A cooking accessory for a microwave oven appliance includes a container including an outer tank and defining a receiving cavity for storing a quantity of liquid, the outer tank including an inner surface facing the receiving cavity and an outer surface opposite the inner surface; and a sensor coupled to the container and provided within the receiving cavity, wherein the sensor is positioned within the stored liquid and at least fifteen millimeters away from the inner surface of the outer tank.

An interrupting circuit (44) is configured to monitor for and detect a fault in a device (10) for generating a field of electromagnetic radiation (e-field) (34) from a radio frequency (RF) generator (24) configured to convert low voltage direct current (DC) into the e-field (34) for application to an article in the e-field (34). If a fault is detected, the interrupting circuit (44) interrupts low voltage DC between an energy reserve (46, 48) and the RF generator (24) within a predetermined time less than the time to dissipate energy stored in the energy reserve (46, 48).

A microwave cooking appliance and method for operating the same perform an adaptive thermal sensing cycle in which a temperature sensor is used to develop a temperature profile for food being heated or cooked at an intermediate point in the cycle, such that a duration and output level for a subsequent stage of the cycle may be determined at least in part based upon the temperature profile.

A driving circuit for a magnetron, and a heating device, the driving circuit includes a rectification circuit, configured to convert an alternating current into a direct current so as to supply power to the magnetron. The driving circuit includes a transformer, a primary coil of the transformer being configured to be connected to an alternating current power supply terminal or an inverter circuit, a second secondary coil of the transformer being connected to the rectification circuit, and the transformer being configured to provide an alternating current for the rectification circuit; and a component having a variable resistance value, the component is in a circuit path formed by the first secondary coil, the anode of the magnetron, and the cathode of the magnetron and configured to limit a current flowing through the magnetron. A resistance value of the component is positively correlated with the temperature of the component.

A sous vide assembly for use in a microwave oven includes an outer tank and an inner tank positioned inside the outer tank to define a heating gap therebetween. The inner tank and the outer tank are filled with water and are in fluid communication with each other through one or more apertures. One or more vertical dividers are positioned within the inner tank and extend along the vertical direction to define a plurality of food chambers and a cover is mounted over the one or more vertical dividers and is movable between an open position and a closed position to provide selective access to the plurality of food chambers and keep food submerged during the sous vide cooking process.

A microwave appliance includes a cabinet defining a cooking chamber, a magnetron, a temperature sensor directed toward the cooking chamber, and a controller. The controller is configured to measure a raw temperature of the cooking chamber, determine a calibrated temperature from the raw temperature and a conversion model, determine a preheat power level for the magnetron, and operate the magnetron at the preheat power level. The controller is further configured to determine a calibrated chamber temperature using a chamber temperature and a preheat conversion model and determine the calibrated chamber temperature has reached a target temperature. The controller is further configured to monitor a calibrated cooking temperature, based on a cooking temperature and a cooking conversion model, and operate the magnetron to a cooking power level to maintain the calibrated cooking temperature at the target temperature. A method of operating a microwave appliance with a temperature sensor is also disclosed.