In one aspect of the invention a communication device including circuitry operable
to facilitate dynamic impedance matching includes an image impedance operable to
be coupled to a receiver/transmitter pair associated with a line impedance. The
device also includes matching circuitry coupled to the line impedance and the image
impedance, the matching circuitry operable to measure an impedance mismatch between
the line impedance and the image impedance and to generate a control signal based
on the measured impedance mismatch. The image impedance is operable to be varied
to more closely match the line impedance based at least in part on the control signal.