Method and apparatus for calibrating an iterative matching network tuner

摘要

A system that incorporates teachings of the subject disclosure may include, for example, identifying a usage mode of the communication device, running a calibration session that includes adjusting a starting point for tuning of the matching network based on a categorized history of previous tuning search paths and based on the usage mode where the categorized history of previous tuning search paths is generated based on monitoring previous tuning search paths during previous tuning and based on monitoring previous usage modes during the previous tuning, and adjusting a tuning search path for the tuning of the matching network based on the categorized history of previous tuning search paths and the usage mode where the adjusting of the starting point and the adjusting of the tuning search path reduces a tuning search time and provides a unique solution for the tuning. Other embodiments are disclosed.

主权项

1. A communication device, comprising:
an antenna; a transceiver coupled with the antenna; a matching network including variable reactance elements, wherein the matching network is coupled with the antenna and the transceiver; an iterative matching network tuner coupled with the matching network to set the variable reactance elements according to a preset sequential tuning algorithm; and a calibrating system coupled with the iterative matching network tuner, wherein the calibrating system performs operations comprising:
calibrating the iterative matching network tuner based on a history of previous tuning processes by monitoring for a solution for antenna impedance based on the solution being derived from a pair of solutions and detecting one of the pair of solutions that is in proximity to a solution point from previous tuning steps;calibrating the iterative matching network tuner based on usage modes for the communication device; andcalibrating the iterative matching network tuner based on an estimation of the antenna impedance.