The nature and the method of microwave
    Microwave is a high frequency electromagnetic wave length , its wavelength range is generally divided into three bands: decimeter , centimeter and millimeter waves . Lm wavelength range to lmm, which corresponds to frequencies from 300MHz to 300GHz. In order to avoid radar, communications , navigation and other microwave equipment interference , in many countries the use of industrial , scientific , medical special frequency , the most commonly used is the 2450MHz and 915MHz, generally using a continuous wave . Microwave frequency used for disinfection , national unity is defined as 2450 + _50MHz with 915_ +25 MHz.
    Than the average wavelength of the microwave radio waves much smaller , the corresponding frequency is much higher . Wavelength of the microwave same meaning greater than visible light , the corresponding frequency is much lower , Gang light of this it differently. Compared with the low-frequency radio waves , microwaves has the following four basic characteristics: a high frequency ; 2 , wave length ; 3 , penetrating strong ; 4, the quantum properties . Speaking from disinfection , microwave energy saving, high selectivity , the role of rapid , broad spectrum bactericidal effect of low temperature characteristics . Microwaves are generated by the magnetron oscillator circuit , the DC magnetron microwave energy directly into shock output. Magnetron power of work , the anode and the cathode space is called the interaction space , in the role of space , sparking one rotation around the longitudinal axis of the high-frequency electromagnetic waves ; while the role of space, the electrons in the electric field and the magnetic field consisting of field effect pay for , forming a spoke-like electron cloud surrounding the cathode rotates . Magnetron structure sizes to meet the spoke-like electron cloud and high-frequency electromagnetic wave synchronous rotation conditions . Thus, whenever the electron cloud of the " spokes " After the resonator cavity port, electronic high-frequency fields are Qiayu field to reject the resistance slows movement speed, resulting from the electric field of the electron energy obtained continuously transmitted to high frequency magnetic field , the microwave oscillation to build up a steady microwave energy , and externally output as a microwave source of microwave energy .