Patent ID: 7786819

Claim:
An apparatus comprising: a matching circuit; a first variable reactance component, having a first range of reactance values, and connected to the matching circuit and connectable to an antenna element operable in a first frequency band and a second frequency band; a second variable reactance component, having a second range of reactance values, and connected to the matching circuit; a detector for detecting a parameter, indicative of an impedance of the apparatus, over at least a part of the first range and second range of reactance values; and a controller configured to determine, using information provided by the detector, optimum ratios of the second reactance values to the first reactance values, at a frequency in the first frequency band, and configured to select a first optimum ratio when the second frequency band is greater than the first frequency band and configured to select a second different optimum ratio when the second frequency band is less than the first frequency band.