Beam forming and steering using LTE diversity antenna

In a mobile device, an antenna system coupled to one or more first transceivers for processing signals according to one or more protocols, respectively, and to a second transceiver for performing a function in conjunction with at least one of the one or more protocols, the antenna system comprising:

• a first antenna associated with the one or more first transceivers;
• a second antenna associated with the second transceiver;
• a circuit coupled to the first antenna and the second antenna;
• and
• a controller configured to control the circuit for enabling beam forming and beam steering or for enabling the function in conjunction with the at least one of the one or more protocols;
• characterized in that the circuit further comprises:
• a first switch coupled to the first antenna at a power combiner, splitter, or a combination thereof;
• a second switch coupled to the second antenna;
• at least one transmission line coupling the first switch and the second switch;
• and
• a transceiver selection module coupled to the power combiner, splitter, or combination thereof;
• wherein:
• each of the first switch, the second switch, the transceiver selection module, and the power combiner, splitter, or a combination thereof is individually adapted for coupling with the controller.