Multi-band communication system with isolation and impedance matching provision

A communication system comprising:

• an antenna comprising a plurality of feeds coupled to a plurality of first paths, respectively, each first path configured to process signals in a group of frequency bands;
• one or more matching networks, each coupled to one or more of the plurality of first paths;
• a plurality of switches coupled to the plurality of first paths on one side and a plurality of second paths on the other side, each switch configured to engage one of the plurality of second paths according to a frequency band selected from the group of frequency bands corresponding to the first path coupled to the switch;
• a controller configured to control the one or more matching networks and the plurality of switches;
• and
• a look-up table coupled to the controller, the look-up table including characterization data according to frequency bands and conditions,
• wherein
• the plurality of feeds are configured to provide isolation and a first-order impedance matching for the plurality of first paths;
• and
• each of the one or more matching networks is controlled by the controller to provide optimum impedance for the frequency band selected and under a condition detected during a time interval.