Physical properties of microwave
Microwave is a kind of electromagnetic wave. It is generated by the periodic change of the electric and magnetic energy in the electromagnetic oscillation circuit like the high frequency electromagnetic wave. Microwave radiation usually refers to the electromagnetic wave with a frequency of 300 ~ 300,000MHz and a wavelength of less than 1m. Microwave can be divided into decimeter wave, centimeter wave and millimeter wave according to its wavelength. Almost all electrodeless ultraviolet lamps on the market are microwave-excited, and working under microwave conditions for a long time will cause great harm to the human body.