A micro-wave device structure with constant power output

Abstract

The invention relates to a microwave device structure with stable output power, which is applied to an open continuous microwave material processing system, which includes at least one microwave transmitting source with an open waveguide and a microwave receiving device, wherein the microwave receiving The devices are arranged correspondingly at the microwave transmitting source at intervals, whereby the microwave receiving device acts as a load of the microwave transmitting source to completely receive the energy sent through the open end of the waveguide, so that the energy at the open end of the waveguide is When the microwave impedance does not match, it can avoid the phenomenon that its power cannot be sent out, and can effectively achieve high-stability energy output. In the process of use, when the impedance produced by different microwave characteristic materials changes, the transmission of microwave energy can still be kept stable, so as to further eliminate the damage caused by load changes (that is, impedance changes produced by different microwave characteristic materials). The case of microwave energy reflection.

Description

technical field [0001] The present invention relates to a microwave device structure capable of stabilizing output power, especially a system applied to open microwave continuous material processing, which can maintain stable microwave energy under impedance changes produced by materials with different microwave characteristics send. Background technique [0002] The interaction between microwaves and materials is an important material processing technology, which mainly uses microwave energy to cause crystal phase change or melting of the affected materials, as well as high material penetration and selective heating by microwave energy. characteristics, which can make the affected material achieve the effect of uniform internal and external action, so that this technology has been widely used in material synthesis, heating, drying, sintering and welding, etc.; [0003] However, due to the interaction between the microwave and the material, the microwave will often have a l...

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Problems solved by technology

[0003] However, due to the interaction between the microwave and the material, the microwave will often have a large difference with the material of the affected material, that is, in the specific application, the transmission of the microwave is likely to have different sizes due to the material processing process. Even when the load changes too much, it is easy to cause part of the microwave energy to be reflected back from the load end, causing the microwave transmission source to be disturbed and damaged; therefore, further in microwave processing In the system, a circulator is added as a bypass mechanism for the reflected energy; however, the circulator only directs the reflected energy to the water (load) in application, so as to avoid the reflected energy from interfering with and damaging the microwave transmission source , which relatively causes the energy of the microwave to act on the material to be reduced, resulting in a low efficiency of the overall use;

[0004] In addition, in the general prior art, it is disclosed that the effect of microwave and material is applied in a closed cavity, so that after absorbing microwave energy, the microwave absorbing block provided inside the cavity will It is used for indirect heating of the affected material, and it avoids the exposure of microwave energy to improve the efficacy of microwave treatment; but when applied in a closed cavity, it is often only possible to perform batch-type heating on the affected material. Microwave treatment, it is impossible to carry out continuous microwave treatment on the affected materials, so it is not suitable for a large number of treatment processes (that is, it is easy to cause waste of manpower and time);

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