Patent ID: 8543176

Claim:
A mobile communication device comprising: an antenna; a first housing; a second housing movably connected to the first housing and capable of moving from a closed position relative to the first housing in which the mobile communication device is in a closed physical state to an open position relative to the first housing in which the mobile communication device is in an open physical state; a communication circuit for transmitting and receiving communication signals; a sensor circuit having a plurality of different types of sensors, the sensor circuit being configured to detect selectable states of the mobile communication device and generate a control signal for indicating the detected selectable states, wherein the different types of sensors include: (a) a first type of sensor configured to detect when the mobile communication device is in the open physical state and when the mobile communication device is in the closed physical state, and (b) a second type of sensor configured to detect other selectable states of the mobile communication device different from the open and closed physical states, the other selectable states of the mobile communication device, including a first orientation state of the mobile communication device and a second orientation state of the mobile communication device; a first impedance matching network configured to optimize the impedance match between the antenna and the communication circuit when the mobile communication device is in the closed physical state and the first orientation state; a second impedance matching network configured to optimize the impedance match between the antenna and the communication circuit when the mobile communication device is in the open physical state and the second orientation state; and a switching network configured to receive the control signal from the sensor circuit and to selectively couple the antenna to the communication circuit with one of the first impedance matching circuit and the second impedance matching circuit, based on open or closed state detection by the first type sensor circuit and first or second orientation state detection by the second type sensor.