Method for closed-loop tuner in a receiver antenna

摘要

Described herein are architectures, platforms and methods for implementing a closed-loop tuner in a receiver circuitry of a portable device. For example, the closed-loop tuner is based upon a configured or an inherent local oscillator (LO) leakage power in the receiver circuitry of the portable device.

主权项

1. A method of tuning in a receiver portable device comprising:
determining a local oscillator (LO) leakage power produced by at least one LO in a receiver circuitry of the receiver portable device, wherein the determining the LO leakage power includes measuring the LO leakage power produced by at least one LO in the receiver circuitry of the receiver portable device; measuring an antenna impedance based upon the determined LO leakage power, wherein antenna impedance is impedance of a receiver antenna of the receiver circuitry; determining that the receiver antenna is out of tune based upon the measured antenna impedance; and tuning the receiver antenna in response to determining that the receiver antenna is out of tune.