GabyEight years ago, researchers from Dartmouth College and Columbia University (USA) demonstrated how to properly use foil to create a “virtual wall” that enhances Wi-Fi signal transmission throughout the home.
Scientists have reported that something as simple as aluminum foil can reflect radio waves and improve the signal. It should be secured in a semicircle behind the router’s antennas, as shown in the picture.
A team of scientists has confirmed that this method can double the Wi-Fi signal in certain areas of the house. However, there is a problem: at the same time, it may weaken the signal in other corners of the space, the publication reported. Daily Mail .
What did the scientists learn?
The scientists did not limit themselves to foil during the testing of the method at Dartmouth College. They analyzed the effects of specialized reflectors that were designed using a specific algorithm and 3D-printed for these experiments.
The team’s goal was to identify a cheap reflector that could amplify or weaken the signal as needed. Despite the printed reflectors showing good results, regular aluminum foil was not far behind.
The foil boom on social media
Recently, a user suddenly recalled a simple method for boosting Wi-Fi signal using foil. social networks And thus caused in internet a real boom.
The author of the viral post specifically advised: “Place aluminum foil behind your Wi-Fi router and thank me later!”
One of the commentators explained: “Aluminum foil behind the router acts as a parabolic reflector, bouncing radio waves forward and concentrating the signal where you need it most.”
Later, another enthusiastic commenter wrote: “It’s amazing that simple aluminum foil can do this with a Wi-Fi signal. Now I have Wi-Fi in my room that doesn’t turn off every 5 seconds!”
Therefore, although this cheap method may initially seem ridiculous, scientists have proven that it actually works. Researchers have confirmed that aluminum foil effectively improves wireless connectivity.
