Cellular antennas often wear disguises. Chances are, your smartphone has at some point connected to an antenna that looks a lot like a pine tree, a palm tree, or even a cactus. But in typical fashion, serial Silicon Valley inventor Steve Perlman aims to push this idea much further. He and his company, Artemis Networks, just unveiled a cellular antenna disguised as a cable. Yes, it's wireless technology that looks like a wire.