We all understand that wireless connectivity, like that of the best Wi-Fi routers, is sent and picked up from the antennae. But have you given any thought to how the antennae should be pointing or how the effective area of Wi-Fi around each antenna looks? How about when there are no visible antennae at all, like on a mesh router? The good news is that understanding all of these questions is relatively simple, even if the physics behind why isn’t.