Single-source microwave heating device

A single-source microwave heating device configured to heat up an object to be heated;

• the single-source microwave heating device comprising:
• a first power-divider having an input port, an isolated port, and two output ports;
• two opposite sides of the first power-divider being respectively an input side and an output side;
• the input port and the isolated port being located on the input side;
• and the two output ports being located on the output side;
• a microwave emitting module configured to emit a microwave into the first power-divider via the input port;
• the first power-divider dividing the microwave from the microwave emitting module between the two output ports according to a main divide ratio, and emitting the divided microwave from the two output ports;
• and
• a shifting wave channel;
• each of two opposite ends of the shifting wave channel connected to a respective one of the two output ports of the first power-divider, a first phase-shifting module and a second power-divider serially disposed in and along the shifting wave channel;
• wherein
• the first phase-shifting module is configured to shift a phase of a microwave passing through the first phase-shifting module;
• the first phase-shifting module has a first phase-adjusting assembly and a first driving assembly;
• a phase-shift provided by the first phase-shifting module varies according to a position of the first phase-adjusting assembly;
• the first driving assembly controls the position of the first phase-adjusting assembly;
• the second power-divider has a first port, a second port, a third port, and a fourth port;
• two opposite sides of the second power-divider being respectively a first side and a second side;
• the first port and the second port being located on the first side;
• the third port and the fourth port being located on the second side;
• the second power-divider dividing a microwave entering the first port according to a first divide ratio and emitting the divided microwaves from the third port and the fourth port;
• the second power-divider dividing a microwave entering the second port according to a second divide ratio and emitting the divided microwaves from the third port and the fourth port;
• the second power-divider dividing a microwave entering the third port according to a third divide ratio and emitting the divided microwaves from the first port and the second port;
• the second power-divider dividing a microwave entering the fourth port according to a fourth divide ratio and emitting the divided microwaves from the first port and the second port;
• a channel between the first port and the fourth port of the second power-divider forming a section of the shifting wave channel;
• a circulating wave channel, wherein the second port and the third port of the second power-divider are connected to two opposite ends of the circulating wave channel respectively;
• a second phase-shifting module and a standing-wave heating chamber are serially disposed in and along the circulating wave channel;
• wherein
• the second phase-shifting module is configured to shift a phase of a microwave passing through the second phase-shifting module;
• the second phase-shifting module has a second phase-adjusting assembly and a second driving assembly;
• a phase-shift provided by the second phase-shifting module varies according to a position of the second phase-adjusting assembly;
• the second driving assembly controls the position of the second phase-adjusting assembly;
• and
• the standing-wave heating chamber is configured to accommodate the object to be heated;
• wherein the microwaves emitted from the two output ports of the first power-divider interfere to form a standing wave in the circulating wave channel;
• positions of crests of the standing wave in the circulating wave channel vary according to the position of the first phase-adjusting assembly;
• wherein the standing wave in the circulating wave channel is absorbed by the object to be heated in the standing-wave heating chamber to heat up the object;
• wherein when the second phase-adjusting assembly of the second phase-shifting module is moved to a phase-inverting position, a phase of a microwave, which enters the second power-divider via the second port, leaving from the fourth port is inverted relative to a phase of another microwave, which enters the second power-divider via the first port, leaving from the fourth port;
• meanwhile a phase of a microwave, which enters the second power-divider via the third port, leaving from the first port is inverted relative to a phase of another microwave, which enters the second power-divider via the fourth port, leaving from the first port.