Patent ID: 8451183
Filing Date: 2013-05-28
Classification: H01Q

Abstract:
1. A metamaterial (MTM) antenna device, comprising: a ground electrode; an MTM cell comprising an electrode cell patch; a launch stub, that is electrically conductive, located nearby and electromagnetically coupled to the MTM cell to direct an antenna signal to or from the MTM cell; a feed line that is electrically conductive and connects to the launch stub to deliver power of the antenna signal to or from the launch stub; a via line that is electrically conductive and electrically coupled to the MTM cell; a tuning circuit coupling the via line to the ground electrode; a control circuit controlling the tuning circuit which changes an electrical length of the antenna between the via line and the ground electrode upon receiving a control signal from the control circuit to change an antenna frequency which varies with the electrical length of the antenna between the via line and the ground electrode; and a substrate having a first surface and a second, opposing surface, wherein the ground electrode, the MTM cell, the launch pad, the feed line, and the via line are formed on the first surface of the substrate.