US Patent 10554243 Multiway switch, radio frequency system, and wireless communication device

A multiway switch, a radio frequency system, and a wireless communication device include four throw (T) ports and four pole (P) ports, and the four T ports include one first T port coupled with all of the four P ports. The multiway switch is configured to be coupled with a radio frequency circuit and an antenna system of an electronic device operable in a dual-frequency single-transmit mode, to enable a preset function of the electronic device, the antenna system includes four antennas corresponding to the four P ports, and the preset function is a function of transmitting a sounding reference signal (SRS) through the four antennas in turn.