Abstract
In recent years, with the improvement of living standard, more and more electronic products were applied to people's daily life. However, the problem of electromagnetic radiation has become prominent increasingly,it seriously affected the normal life of residents and physical health. The source of electromagnetic radiation is extremely wide. The direction of this article are explore and control of electromagnetic radiation in multi-state home environment.. It based on theoretical calculations and experiment, explore the principles of wireless routers, configuration parameters, antenna performance, and so on. Then there are a series of related theoretical calculations , and get some necessary data which would be used in the next experiments . Finally, on this basis give some prevention methods and measures.
Keywords：WiFi router; electromagnetic radiation; electromagnetic wave; electromagnetic field
