US Patent 7872547 Wireless communication device

A wireless communication device includes an antenna module, a transceiving module, and a switch module. The antenna module includes a first antenna and a second antenna. The transceiving module includes a first transceiver and a second transceiver. The switch module switches different connections between the antenna module and the transceiving module, and includes a first single-pole-double-throw (SPDT) switch, a second SPDT switch, a third SPDT switch, a first duplexer, a second duplexer, and a double-pole-double-throw (DPDT) switch.