WLAN antennas increase both signal range and quality of wireless networks. Omnidirectional antennas emitting uniformly in all directions are usually rod-shaped and can be attached to routers or network cards. Flat directional antennas, i.e. emitting in a certain direction, are installed especially in larger spaces such as waiting rooms, offices and public facilities. Antennas suitable for outdoor use serving a terrace or garden with WLAN are particularly robust and functional in an extended temperature range.