A method of communicating with a plurality of bands by using an electronic device including a plurality of antennas, an antenna system, and an electronic device is provided. The method includes providing a first or second band signal received via a first antenna to a first transceiver; receiving a first diversity signal for the second band signal via a second antenna and providing the received first diversity signal to a combiner via a signal divider connected to a second transceiver and the combiner; receiving a second diversity signal for the second band signal via a third antenna and providing the received second diversity signal to the combiner; and combining the first diversity signal and the second diversity signal in the combiner and providing the combined signal to a third transceiver connected to the third antenna.