the present invention fig4 a and 4b are graphs illustrating examples of insertion losses of the first and second diplexers in fig2 respectively according to embodiments of the present invention referring to fig2 a first radio frequency rf switch 110 is a single pole three throw sp3t type switching circuit having one input port p 1 three output ports p 2 p 3 and p 4 and three control ports vc 1 vc 2 and vc 3 in the first rf switch 110 the input port p 1 is connected to an antenna 100 and the output ports p 2 p 3 and p 4 are connected to a first diplexer 120 a second diplexer 130 and a gps rf switch 140 respectively the control ports vc 1 vc 2 and vc 3 are controlled by a controller 190 when only the control port vc 1 is provided with a u2018 high u2019 signal while the other control ports vc 2 and vc 3 are provided with a u2018 low u2019 signal the input port p 1 is switched to the output port p 2 connected to the first diplexer 120 when only the control port vc 2 is provided with a u2018 high u2019 signal while the other control ports vc 1 and vc 3.