Controlling a beamforming antenna using reconfigurable parasitic elements

An antenna system for a wireless device, comprising:

• a beamforming antenna for generating an antenna-pattern beam, said beamforming antenna comprising:
• a primary radiating element electrically connected to an adaptive matching network, wherein said adaptive matching network is used for matching the input impedance of said beamforming antenna;
• one or more reconfigurable parasitic elements electrically connected, electrically coupled, or both to said primary radiating element and electrically connected to a switching circuit, wherein said switching circuit is used to select one or more of said reconfigurable parasitic elements, and said primary radiating element and said selected parasitic elements cooperatively receive, transmit, or both a radio frequency signal, the parasitic elements for shaping and directing the antenna-pattern;
• a transceiver electrically connected to said beamforming antenna for transmitting a signal, receiving a signal, or both;
• a usage detector electrically connected to said beamforming antenna and said transceiver for recognizing the environment of the wireless device;
• and
• a controller electrically connected to said beamforming antenna, said usage detector, said transceiver, said switching circuit, and said adaptive matching network to adapt the antenna-pattern beam of said beamforming antenna, wherein said controller is configured to:
• determine that the input impedance of the beamforming antenna using said adaptive matching network is outside a tolerance;
• recognize the environment of the wireless device using said usage detector;
• select a portion of said reconfigurable parasitic elements using the input impedance of the beamforming antenna, an observation table, said recognized environment, or any combination thereof;
• and
• update the beamforming antenna by electrically connecting, electrically coupling, or both said selected portion of reconfigurable parasitic elements with said primary radiating element using said switching circuit, to adaptively steer the antenna-pattern in a preferred direction.

An antenna system for a wireless device, comprising:

• a beamforming antenna for generating an antenna-pattern beam, said beamforming antenna comprising:
• a primary radiating element electrically connected to an adaptive matching network, wherein said adaptive matching network is used for matching the input impedance of said beamforming antenna;
• one or more reconfigurable parasitic elements electrically connected, electrically coupled, or both to said primary radiating element and electrically connected to a switching circuit, wherein said switching circuit is used to select one or more of said reconfigurable parasitic elements, and said primary radiating element and said selected parasitic elements cooperatively receive, transmit, or both a radio frequency signal, the parasitic elements to shape and direct the antenna-pattern;
• a transceiver electrically connected to said beamforming antenna for transmitting a signal, receiving a signal, or both;
• a sensor to detect the directional alignment of the wireless device, the speed of the wireless device, the acceleration of the wireless device, or any combination thereof;
• and
• a controller electrically connected to said beamforming antenna, said transceiver, said switching circuit, said adaptive matching network, and said sensor to adapt the antenna-pattern beam of said beamforming antenna, wherein said controller is configured to:
• determine that the input impedance of the beamforming antenna using said adaptive matching network is outside a tolerance;
• recognize the environment of the wireless device using said beamforming antenna, said transceiver, said switching circuit, said adaptive matching network, said sensor, or any combination thereof;
• select a portion of said reconfigurable parasitic elements using the input impedance of the beamforming antenna, an observation table, said recognized environment, or any combination thereof;
• and
• update the beamforming antenna by electrically connecting, electrically coupling, or both said selected portion of reconfigurable parasitic elements with said primary radiating element using said switching circuit to adaptively steer the antenna-pattern in a preferred direction.