32results about How to "High microwave power" patented technology

The present invention aims at providing a microwave irradiation device and a microwave irradiation method for using a plurality of magnetrons to reduce reflection electricity thereby illuminating microwave. The microwave irradiation device includes a chamber 1 for accommodating an object to be processed; a plurality of magnetrons 10a and 10b for generating microwaves and irradiating the microwaves to the object to be processed in the chamber; and a power supply unit 20 for supplying a pulse-shaped voltage to each magnetron. The power supply unit supplies the pulse-shaped voltage to the magnetrons while preventing temporal overlap of voltage pulses of the pulse-shaped voltage supplied to the respective magnetrons with each other.

The invention provides a microwave oven comprising at least two semiconductor microwave generators and a waveguide box, wherein the semiconductor microwave generators are connected with a direct current power supply; the waveguide box is connected with a waveguide opening arranged on a chamber body of the microwave oven; the waveguide box is provided with a plurality of waveguide holes communicated with the waveguide opening, wherein the amount of the waveguide holes is the same as the amount of the semiconductor microwave generators; the semiconductor microwave generators are respectively connected with the waveguide holes; and the waveguide box is provided with a plurality of independent waveguide spaces corresponding to all the waveguide holes. The purpose that at least two semiconductor microwave generators connected with the direct current power supply share a common waveguide box is achieved; microwaves generated by each semiconductor microwave generator are respectively transmitted from the independent waveguide spaces of the waveguide box to the chamber body so that mutual interference of the microwaves is avoided; and the microwave oven has the following characteristics of simpler and more compact structure, high microwave power and wide adjustable heating range.

The invention relates to a high power microwave plasma chemical vapor deposition device for a diamond film, and belongs to the technical field of preparation of diamond films. The device comprises an upper cylinder and a lower cylinder of a resonant cavity, a deposition table for depositing the diamond film and a resonant cavity main body formed by semi-ellipsoidal microwave reflectors. The semi-ellipsoidal microwave reflectors are in smooth transition with the upper cylinder of the resonant cavity in shape, thus, guaranteeing that microwave entering into the resonant cavity is not scattered. At the same time, the semi-ellipsoidal microwave reflectors are arranged, so that the resonant cavity has strong focusing capacity of a microwave electric field for the convenience of focusing microwave energy above the deposition table so as to form a strong electric field area and high-density plasmas. The positions of the semi-ellipsoidal microwave reflectors are adjusted to adjust the resonant cavity of the device, so that distribution of the microwave electric field and plasmas in the device are optimized in real time. At the same time, a quartz glass window in the device is located below the diamond film deposition table, and other main parts of the device are far from the plasmas and can be directly cooled by water better.

The invention discloses a cylindrical waveguide microwave cavity for a rubidium clock and belongs to the technical field of electronics. The cylindrical waveguide microwave cavity comprises a cylindrical waveguide tube (2) with an upper end face open, an atom absorbing bulb (3) arranged in the cylindrical waveguide tube (2), and a photoelectric component (1) arranged at an opening of a groove of the waveguide tube (2). A metal adjusting screw (4) movably connected with the waveguide tube (2) is horizontally arranged on the lateral side of the upper portion of the waveguide tube (2), and a light permeable hole (5) is reserved in the middle of the bottom of the waveguide tube. By the above arrangement, the cylindrical waveguide microwave cavity overcomes the defect that an existing microwave cavity cannot meet the requirements of small size, simple structure, batch production, high accuracy and capability of effectively suppressing microwave leakage at the same time, and is free of medium filing and simple structure, and requirements for processing accuracy of appearance size of the microwave cavity and size of the atom absorbing bulb in the microwave cavity are low. Besides, the cylindrical waveguide microwave cavity is simple to assemble and debug and favorable for batch production of the rubidium clocks.

The invention provides a semiconductor microwave oven and a semiconductor microwave generator connecting structure for the same. The connecting structure comprises semiconductor microwave generators and an antenna, wherein the semiconductor microwave generators are connected with the antenna through an adapter socket and an adapter plug, which are matched. The semiconductor microwave generators directly transmits microwaves to an antenna head through the socket and the plug, which are matched, so that a transmission distance is shortened, the loss of the microwaves in a transmission process is reduced, and the connecting structure is simple, compact and low in transmission loss. The semiconductor microwave oven comprises a microwave oven cavity body, a waveguide port in the cavity body, two or more than two semiconductor microwave generators electrically connected with a direct current power supply, and a matched waveguide box, wherein the two or more than two semiconductor microwave generators are connected with the waveguide port through the waveguide box, and are connected with the antenna through the semiconductor microwave generator connecting structure; and the microwaves are guided into the waveguide box through the antenna. The semiconductor microwave oven is simple and compact in structure, the loss of the microwaves in a transmission process is low, and an adjustable heating range is wide; and the two or more than two semiconductor microwave generators can alternately work or be combined for work, and different power ranges can be selected according to needs to achieve required cooking effects and meet various cooking requirements.

The invention provides a semiconductor microwave oven and a semiconductor microwave generator connecting structure for the same. The semiconductor microwave oven comprises semiconductor microwave generators connected with a direct current power supply, and a waveguide box connected with a port formed in a semiconductor microwave oven cavity body. The waveguide box is provided with a waveguide hole communicated with the waveguide port. Two or more than two semiconductor microwave generators are connected with the same waveguide box. Each semiconductor microwave generator is provided with the semiconductor microwave generator connecting structure. A connected antenna is connected into the waveguide box through the waveguide hole. The guided-in microwaves of the semiconductor microwave generators are in the same direction or isolated from each other. According to the semiconductor microwave generator connecting structure, the semiconductor microwave generators are connected with the antenna through a bendable microwave transmission part, and the microwaves are guided into the waveguide box through the antenna. The structural limitation of the space of the cavity body to the arrangement of the semiconductor microwave generators and the waveguide box is avoided, so that the semiconductor microwave oven is simple and flexible in structure and low in transmission loss, and microwave transmission requirements are met; and two or more than two semiconductor microwave generators connected with the direct current power supply share one waveguide box, and influence between the microwaves is avoided, so that the semiconductor microwave oven is simple and compact in structure, high in microwave power and wide in adjustable heating range, and the technical problems of complex structure and incapability of arranging a plurality of semiconductor microwave generators due to interference between the microwaves in the prior art are solved.

The invention discloses a microwave cooking device. The microwave cooking device comprises a cooking cavity body, a microwave source, a first antenna and a second antenna, wherein a cooking chamber is arranged in the cooking cavity body and is a rectangular shape of which a length direction is directed along a left-right direction, a first antenna feeding hole is formed in a left side wall of the cooking chamber, a second antenna feeding hole is formed in a right side wall of the cooking chamber, the microwave source is arranged on the cooking cavity body and is arranged below the cooking chamber, the first antenna is provided with a first feeding end and a first emission end, the first feeding end is connected with the microwave source, the first emission end extends to the cooking chamber through the first antenna feeding hole, the second antenna is provided with a second feeding end and a second emission end, the second feeding end is connected with the microwave source, and the second emission end extends to the cooking chamber through the second antenna feeding hole. By the microwave cooking device disclosed according to the invention, the microwave transmission efficiency is high, and the microwave heating effect is good.

The invention relates to a microwave power confocal synthesis device. Aiming at the shortages that the microwave power synthesizer in the prior art has relatively high requirements on microwave sources, the system structure is complicated and the cost is high, the invention discloses a microwave power confocal synthesis device. The microwave power confocal synthesis device synthesizes the power of multiple paths of microwaves to obtain a large-power microwave, so that the cost of large-power microwave equipment is reduced. The technical scheme of the invention is that: the microwave power confocal synthesis device comprises at least two microwave input ends and the corresponding waveguide cavities. The waveguide cavity comprises a bottom surface, a top surface and a side wall vertical to the bottom surface and the top surface, wherein the bottom surface and the top surface are parallel to each other; the orthographic projection of the side wall on the bottom surface or the top surfaceis an elliptical arc; the microwave input end is arranged on a focus of the elliptical arc; the other focus of the elliptical arc is superposed and is a microwave gathering end; and the microwaves inputted by the microwave input ends are gathered at the microwave gathering end after passing through the waveguide cavities. The microwave power confocal synthesis device can be used for generating plasmas.

The invention discloses a microwave load, comprising: a body, a wedge-shaped plug, an absorbing sheet, a water inlet pipe and a water outlet pipe. The body is a cuboid with a waveguide cavity, and a V-shaped groove is opened on the side wall of the body along the length direction of the cuboid. A plurality of first water holes are opened on the side wall of the body along the width direction of the cuboid; the wedge-shaped plug includes a side plate corresponding to the end face of the body, and a wedge-shaped part connected to the side plate at one end and corresponding to the V-shaped groove , the wedge-shaped portion is provided with a plurality of second water holes; the absorbing sheet includes a first absorbing sheet and a second absorbing sheet respectively connected to the inner surface of the waveguide cavity, and a third absorbing sheet respectively connected to the two side surfaces of the wedge-shaped portion and the fourth absorbing sheet; the water inlet pipe and the water outlet pipe communicate with the two ends of the first water passage hole and the second water passage hole respectively. On the surface of the wedge-shaped part, an absorbing sheet is placed, which doubles the area of ​​absorption, so that the absorbing sheet can quickly transfer the absorbed microwave heat to the cooling water in the second water passage hole.

The invention discloses a high-temperature and high-pressure microwave chemical reactor which comprises a pressure-bearing shell with an inner cavity structure, a stirring system arranged on the top of the pressure-bearing shell and a microwave feeder arranged on the side wall of the pressure-bearing shell, wherein the stirring system mainly comprises a motor, a speed reducer, a bearing and a stirrer; the motor is in power connection with the speed reducer; the stirrer is in power connection to a power output shaft of the speed reducer; the bearing is arranged on the top of the stirrer; the lower part of the stirrer is arranged in the inner cavity of the pressure-bearing shell; a material inlet / outlet is formed in the top of the pressure-bearing shell; a liquid drainage opening is formed in the bottom of the pressure-bearing shell. The high-temperature and high-pressure microwave chemical reactor disclosed by the invention is provided with a plurality of layers of microwave feeding devices, and a plurality of transverse or vertical microwave feeding devices are arranged at each layer, so that multiple microwave feeding openings are formed; furthermore, the stirrer is arranged in the reactor, mediums in the overall reactor are subjected to uniform microwave radiation and can generate full chemical reaction. The high-temperature and high-pressure microwave chemical reactor is high in microwave utilization rate, and the microwave power is high after microwaves are fed.