Do you need an antenna for WiFi?

Of course, the router needs Wifi Antenna for PC, because the router may have weak WiFi signal due to the installation location and its own power, output and distance, etc., and the WiFi coverage is small. However, Wifi Antenna for Router is expanded by transmitting and receiving electromagnetic waves. The device receives the signal range Wfi Antenna Outdoor, Wifi Antenna Indoor, sends the received signal to the receiver, and then outputs it from the receiver, so it will enhance the signal coverage of the router, thereby enhancing the WiFi signal.