Radio frequency PA Mid device, radio frequency systems, and communication device

A radio frequency (RF) system, comprising:

• a RF transceiver;
• a RF power amplifier module integrated duplexer (PA Mid) device, connected with the RF transceiver;
• wherein the RF PA Mid device is arranged with a first input port configured to receive a high-frequency signal of a first mode sent by the RF transceiver, a second input port configured to receive an intermediate-frequency signal of a second mode sent by the same RF transceiver, a first antenna port configured to connect an antenna, a second antenna port, a third input port configured to receive a low-frequency signal of the first mode, and a fourth input port configured to receive a low-frequency signal of the second mode;
• and
• the RF PA Mid device comprises:
• a first switch, comprising two first ends and a second end, wherein the two first ends of the first switch are respectively connected with the first input port and the second input port in one-to-one correspondence, and the first switch is configured to selectively output the high-frequency signal of the first mode or the intermediate-frequency signal of the second mode;
• a plurality of first power amplifiers, wherein each of the plurality of first power amplifiers comprises an input end and an output end, the input end of each of the plurality of first power amplifiers is connected with the second end of the first switch respectively, and each of the plurality of first power amplifiers is configured to support amplification processing of the high-frequency signal and the intermediate-frequency signal;
• and
• a first power combiner, comprising a plurality of input ends and an output end, wherein the plurality of input ends of the first power combiner are respectively connected with the output ends of the plurality of first power amplifiers in one-to-one correspondence, the output end of the first power combiner is connected with the first antenna port, and the first power combiner is configured to combine output powers of the plurality of first power amplifiers to output an intermediate-frequency signal with target power or a high-frequency signal with target power;
• a second switch, comprising two first ends and a second end, wherein the two first ends of the second switch are respectively connected with the third input port and the fourth input port in one-to-one correspondence, and the second switch is configured to selectively output the low-frequency signal of the first mode and the low-frequency signal of the second mode;
• a plurality of second power amplifiers, wherein each of the plurality of second power amplifiers comprises an input end and an output end, the input end of each of the plurality of second power amplifiers is connected with the second end of the second switch, and each of the plurality of second power amplifiers is configured to support amplification processing of the low-frequency signal;
• and
• a second power combiner, comprising a plurality of input ends and an output end, wherein the plurality of input ends of the second power combiner are respectively connected with the output ends of the plurality of second power amplifiers in one-to-one correspondence, the output end of the second power combiner is connected with the second antenna port, and the second power combiner is configured to combine output powers of the plurality of second power amplifiers to output a low-frequency signal with target power;
• and
• an antenna set, connected to the antenna port of the RF PA Mid device and configured to transmit and receive a RF signal.

A communication device, comprising:

• a radio frequency (RF) system, wherein the RF system comprises:
• a RF transceiver;
• a RF power amplifier module integrated duplexer (PA Mid) device, connected with the RF transceiver;
• and
• an antenna set, connected to the antenna port of the RF PA Mid device and configured to transmit and receive a RF signal;
• wherein the RF PA Mid device is arranged with a first input port configured to receive a high-frequency signal of a first mode sent by the RF transceiver, a second input port configured to receive an intermediate-frequency signal of a second mode sent by the same RF transceiver, a first antenna port configured to connect an antenna, a second antenna port, a third input port configured to receive a low-frequency signal of the first mode, and a fourth input port configured to receive a low-frequency signal of the second mode;
• and
• the RF PA Mid device comprises:
• a first switch, comprising two first ends and a second end, wherein the two first ends of the first switch are respectively connected with the first input port and the second input port in one-to-one correspondence, and the first switch is configured to selectively output the high-frequency signal of the first mode or the intermediate-frequency signal of the second mode;
• a plurality of first power amplifiers, wherein each of the plurality of first power amplifiers comprises an input end and an output end, the input end of each of the plurality of first power amplifiers is connected with the second end of the first switch respectively, and each of the plurality of first power amplifiers is configured to support amplification processing of the high-frequency signal and the intermediate-frequency signal;
• and
• a first power combiner, comprising a plurality of input ends and an output end, wherein the plurality of input ends of the first power combiner are respectively connected with the output ends of the plurality of first power amplifiers in one-to-one correspondence, the output end of the first power combiner is connected with the first antenna port, and the first power combiner is configured to combine output powers of the plurality of first power amplifiers to output an intermediate-frequency signal with target power or a high-frequency signal with target power;
• a second switch, comprising two first ends and a second end, wherein the two first ends of the second switch are respectively connected with the third input port and the fourth input port in one-to-one correspondence, and the second switch is configured to selectively output the low-frequency signal of the first mode and the low-frequency signal of the second mode;
• a plurality of second power amplifiers, wherein each of the plurality of second power amplifiers comprises an input end and an output end, the input end of each of the plurality of second power amplifiers is connected with the second end of the second switch, and each of the plurality of second power amplifiers is configured to support amplification processing of the low-frequency signal;
• and
• a second power combiner, comprising a plurality of input ends and an output end, wherein the plurality of input ends of the second power combiner are respectively connected with the output ends of the plurality of second power amplifiers in one-to-one correspondence, the output end of the second power combiner is connected with the second antenna port, and the second power combiner is configured to combine output powers of the plurality of second power amplifiers to output a low-frequency signal with target power;
• and
• a power module, connected with the RF PA Mid device and configured to provide a power voltage for the RF PA Mid device.