SAR Evaluations of Array Antenna for Wireless LAN Router

In recent years, many types of mobile communication devices are used in close vicinity of our body. Along with the situation, electromagnetic energy absorption evaluated by specific absorption rate (SAR) radiated from the mobile radio terminal such as cellular phone has been investigated. In this study, changing the point of view,the SAR by a wireless local area network (LAN) router, which is sometimes installed around our body, was evaluated employing numerical calculations. Especially, SAR variation by beam forming function using an array antenna has been studied. As a result, the SAR distributions depending on the beam direction were revealed.