Apparatuses, systems, and methods for heating a fluid or other material. The apparatuses may include a container (e.g., tube) in which a susceptor material is disposed. The susceptor material may convert microwave energy to heat, which may increase the temperature of a fluid or material in or adjacent the tube.

An applicator for thermal treatment of a product in which the product is exposed to electromagnetic microwave radiation in an exposure waveguide, in which the microwaves are coupled and propagate according to a single-mode propagation mode. The applicator includes a system for transporting the product in a continuous flow following the longitudinal direction of the cavity of the exposure waveguide between the inlet opening and the outlet opening. A product treatment device includes at least one applicator and at least one continuous wave generator CW. The product, heated by continuous microwave radiation CW in device, is subjected to a thermal treatment method in line with a temperature curve as a function of time, resulting in particular from a speed of movement of the product in the exposure waveguide and from a power of the microwave radiation coupled into the exposure waveguide at each coupling point.

A method of forming a microwave applicator comprising forming a body comprising dielectric material so that there is a void in the dielectric material, and depositing conductive material in the void to form a feed for coupling energy into the dielectric material.

The present invention is a heater or heating device that uses microwave energy to generate heat quickly. The heater generates heat quickly by forcing air over microwave-heated oil or non-freeze liquid. As a non-limiting embodiment, the heater preferably includes most or all of the following components: an outer casing or housing, at least one air intake vent, a magnetron, a microwave emitter, a wave scatterer, at least one fluid holder, fluid, a capacitor, a transformer, a microwave containment casing, and a perforated microwave guard. As another non-limiting embodiment, the heater preferably includes most or all of following components: an outer casing or housing, a cooling fan, a magnetron, a microwave emitter, a wave scatterer, at least one non-freeze liquid holder, non-freeze liquid, a capacitor, a transformer, a microwave containment casing, a glass tube, a metal tube, a fan coil, a pump, a reservoir and expansion tank, and a fill plug.

A carbon fiber recycling method utilizes a carbon fiber recycling device for recycling carbon fiber from a carbon fiber polymer composite by using a microwave. The carbon fiber recycling device has a cavity and at least one microwave supplying unit. The carbon fiber recycling method adjusts the microwave supplying unit to change the angle between the long axis direction of the cavity and the electric field direction, and to make the long axis direction of the carbon fiber parallel to the electric field direction. By radiating the microwave on the carbon fiber polymer composite, energy of the microwave is quickly absorbed by the carbon fiber to quickly increase a temperature of the carbon fiber, and the carbon fiber polymer composite is effectively and quickly decomposed to remove most polymer matrix of the carbon fiber polymer composite, so as to achieve the objective of recycling the carbon fiber indeed.

A material processing apparatus is disclosed. This material processing apparatus is particularly developed to utilize a quasi-traveling microwave to conduct heat treatment for a thread-type article like fiber, silk, artificial fiber, and artificial silk. The material processing apparatus comprises a primary waveguide tube, a microwave blocking plate, a secondary waveguide tube, and at least one microwave absorbing member disposed of in the primary waveguide tube. By such design, a microwave source supplies a microwave to the secondary waveguide tube and the primary waveguide tube, such that the microwave travels in the two waveguide tubes so as to become a quasi-traveling microwave. Therefore, in the case of a thread-type article being be fed into the primary waveguide tube via the secondary waveguide tube by a thread-type article transferring mechanism, the thread-type article is steadily and evenly heated by the quasi-traveling microwave in the two waveguide tubes.

A method for analyzing a frequency response of a cooking device is disclosed. The method comprises controlling a plurality of RF signals within an operating range of the cooking device at plurality of phase shifts between a first RF signal and a second RF signal. A plurality of efficiencies of at least one reflection signal in the resonant cavity are measured in response to a plurality of RF feeds generated from the RF signals for the plurality of phase shifts. The frequency response of the resonant cavity is modeled with a numeric model and a plurality of interpolation parameters for the numeric model are calculated based on the plurality of measured efficiencies of the RF feeds. The frequency response of the cavity is estimated for the operating range of the cooking device based on the numeric model with the plurality of interpolation parameters.

The present disclosure describes systems and methods that employ a plurality of microwave applicator cells as a combined unit to continuously travel along an asphalt surface to treat the existing asphalt with microwave energy. The microwave treatment reanimates the existing (and likely damaged) asphalt to a workable state that is almost identical in nature to newly laid asphalt. The microwave system is configurable to span the width of a standard road lane, wherein the continuously traveling system efficiently repairs damaged roads with minimal down time.

The invention relates to the technical field of microwave heating, and more particularly to a high-efficiency heating device in a microwave chamber and a heating method thereof. A high-efficiency heating device in a microwave chamber, comprising: a heating chamber; a straight-walled waveguide with microwave asymmetric propagation function; wherein one end of the straight-walled waveguide is communicated with the heating chamber; and at least one group of unidirectional waveguide structures, which are attached to an inner sidewall of the straight-walled waveguide; wherein the unidirectional waveguide structures comprise a first medium section and a second medium section which are provided along the microwave transmission direction; wherein a dielectric constant of the first medium section gradually increases along the microwave transmission direction and has a maximum value of ε.sub.max, a dielectric constant of the second medium section is a constant value of ε.sub.c, and ε.sub.max=ε.sub.c.

A microwave separated field reconstructed device includes: a microwave field reconstructed cavity, a first short circuit plane, a third waveguide flange and coupling windows, wherein connection ports are provided on four ends of the microwave field reconstructed cavity; the microwave field reconstructed cavity is provided with a first waveguide flange, and a second waveguide flange is provided one end of the microwave field reconstructed cavity perpendicular to the first waveguide flange; the first short circuit plane is connected to one end of the first waveguide flange away from the microwave field reconstructed cavity; a second short circuit plane is connected to one end of the second waveguide flange away from the microwave field reconstructed cavity. The input ports are distributed at two ends of the microwave field reconstructed cavity to introduce electric and magnetic fields.