Wireless signal amplification device with high suppression and low noise of power amplifier

The utility model provides a high-suppression power amplifier low-noise wireless signal amplification device in the technical field of communication. The high-suppression power amplifier low-noise wireless signal amplification device comprises a retransmission antenna; the dielectric duplexer is connected with the retransmission antenna; the downlink signal amplification module is connected with the dielectric duplexer; the uplink signal amplification module is connected with the dielectric duplexer; the single chip microcomputer is respectively connected with the downlink signal amplification module and the uplink signal amplification module; one end of the directional coupler is connected with the downlink signal amplification module, and the other end of the directional coupler is connected with the single chip microcomputer; and the power supply module is connected with the single chip microcomputer. The digital trunking interphone system has the advantage that high-quality amplification of wireless signa