System and method for tuning an antenna in a wireless communication device

摘要

In accordance with some embodiments of the present disclosure, a control path for a wireless communication device may include a radio frequency coupler having a coupled port and a terminated port, the radio frequency coupler configured to couple at least a portion of a transmission power of a transmission line coupled to the antenna tuner such that the coupled port carries a first signal indicative of an incident power transmitted to an antenna coupled to the antenna tuner and the terminated port carries a second signal indicative of a reflected power reflected by the antenna. the control path may also include a control module configured to communicate the one or more control signals to the antenna tuner for controlling the impedance of the antenna tuner based at least on the first signal and the second signal.

主权项

1. A wireless communication element, comprising:
a receive path configured to receive a first wireless communication signal and convert the first wireless communication signal into a first digital signal based at least on an oscillator signal; a transmit path configured to convert a second digital signal into a second wireless communication signal based at least on the oscillator signal; an antenna coupled to the receive path and the transmit path and configured to transmit the second wireless communication signal; an antenna tuner coupled to the transmit path and the antenna; and a control path coupled to the antenna and the antenna tuner, the control path configured to:
sense a power transmitted from the transmit path to the antenna;sense a phase of the power transmitted from the transmit path to the antenna; andbased at least on the sensed power and the send phase, communicate one or more control signals to the antenna tuner for controlling an impedance of the antenna tuner.