Microwave physical properties
Microwave is a kind of electromagnetic wave. Like high-frequency electromagnetic waves, it is produced by the periodic changes of the electric and magnetic field energy in the electromagnetic oscillation circuit. Microwave radiation usually refers to electromagnetic waves with a frequency of 300 to 300,000 MHz and a wavelength below 1 m. According to its wavelength, microwave can be divided into decimeter wave, centimeter wave and millimeter wave. Almost all electrodeless ultraviolet lamps on the market are microwave-excited, and working under microwave conditions for a long time can cause great harm to the human body.