Monster MAVA5001S -- KATANA 60M ACTIVE ANTENNA W/AMP
ultra-thin indoor antenna, 13" x 9.25" with 11' cable
Requires a USB power source which is typically the USB port on the TV. Can also be powered from a 120V to USB power brick / adapter cell phone type charger (not included).
see also MONMAVA3000S for a non-amplified version