Antenna switching circuit and electronic device

An electronic device, comprising:

• an application processor configured to generate and transmit a first signal;
• a baseband system configured to receive and process the first signal to generate and transmit a second signal;
• a radio frequency processor configured to receive the second signal, processes the second signal based on a loss value of a first switch to generate and transmit a third signal;
• a first switch configured to select, from a plurality of radio frequency channels in the radio frequency processor, a radio frequency channel coupled to the radio frequency processor, and transmit the third signal to one of the plurality of radio frequency channels;
• a radio frequency front-end configured to receive the third signal transmitted by the first switch, process the third signal to generate a fourth signal, and transmit the fourth signal;
• an antenna system comprising a plurality of antennas;
• and
• a second switch configured to select an antenna of the antenna system, and that is coupled to a plurality of radio frequency channels in the radio frequency front-end, wherein the second switch receives the fourth signal and transmits the fourth signal to the antenna system, wherein the antenna system is configured to receive the fourth signal and output the fourth signal.

An antenna switching method comprising:

• receiving, by a radio frequency processor, a first radio frequency signal from an external circuit;
• processing the first radio frequency signal based on a loss value of a first switch to generate a second radio frequency signal;
• transmitting the second radio frequency signal to the first switch;
• selecting, by the first switch, from a plurality of radio frequency channels in the radio frequency processor, a radio frequency channel coupled to the radio frequency processor, and transmitting the second radio frequency signal to one of the plurality of radio frequency channels;
• receiving, by a radio frequency front-end, the second radio frequency signal, processing the second radio frequency signal to generate a third radio frequency signal, and transmitting the third radio frequency signal to an antenna system;
• selecting, by a second switch coupled to the plurality of radio frequency channels, a first antenna from among a plurality of antennas in the antenna system;
• and
• receiving, by the first antenna, the third radio frequency signal, and outputting the third radio frequency signal.