Patent ID: 8706053

Claim:
A communications circuit assembly for an electronic device through which the electronic device establishes wireless communications with a communications network, comprising: a transceiver; an antenna assembly; an impedance matching tuner that operatively couples the transceiver and the antenna assembly, the impedance matching tuner has a variable impedance matching configuration to match impedance of the antenna assembly to the transceiver; and a controller configured to control the impedance matching tuner by outputting impedance matching tuner control data to the impedance matching tuner, wherein the impedance matching tuner control data is: predetermined tuning values for a currently used frequency band and a currently sensed loading condition of the antenna assembly when transmit power is below a predetermined threshold so that the impedance matching configuration of the impedance matching tuner coupling the antenna assembly and the transceiver is open loop; and closed loop controlled tuning values that start with the predetermined tuning values for the currently used frequency band and currently sensed loading condition of the antenna assembly when transmit power is above the predetermined threshold so that the impedance matching configuration of the impedance matching tuner coupling the antenna assembly and the transceiver is closed loop.