Spray-On Antenna Boosts Reception Without Using Any Additional Power (video)
Scientists have developed a spray on coating that will be able to boost your phone's reception and would amplify signals instead of attenuating them. At Google's Solve for X event, Rhett Spencer from military technology firm Chamtech explained how the company developed an aerosol spray that will paint an antenna onto any surface thus boosting local wireless reception without using any power.
Of course, he didn't get into the details of how it works, but he explained that the aerosol coats a surface wtih thousands of nanocapacitors. They align themselves and act as a wireless antenna. They've already tested the coating on an iPhone antenna, and it boosted the handset's signal power by 10 percent. They also show how the spray can even turn a tree into an antenna that is capable of broadcasting a VHF signal over 14 miles. It can also be used underwater too.