Multiway switch, radio frequency system, and electronic device

A multiway switch, applicable to an electronic device being operable in a single-frequency dual-transmit mode and the electronic device comprising the multiway switch, a radio frequency circuit, and an antenna system;

• the multiway switch comprising four T ports and 2n P ports;
• the four T ports being configured to be coupled with the radio frequency circuit;
• the 2n P ports being configured to be coupled with the antenna system;
• the four T ports comprising two first T ports coupled with all of the 2n P ports;
• n being an integer and n≥2;
• and
• the multiway switch being configured to be coupled with the radio frequency circuit and the antenna system to implement a preset function of the electronic device, the antenna system comprising 2n antennas, and the preset function being a function of transmitting a sounding reference signal (SRS) through the 2n antennas corresponding to the 2n P ports in turn;
• and wherein
• the four T ports further comprise two second T ports;
• each of the two second T ports is coupled with one corresponding P port of the 2n P ports;
• the two first T ports support at least a transmission function;
• and
• the two second T ports support only a reception function.