Patent ID: 11888510
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 3:
4. The transmission/reception separation circuit according to claim 1, wherein:
the transmission amplification circuit comprises a first switch, a balanced combination amplification circuit, and a second switch, the first switch is separately connected to a power supply end of a power amplifier in the balanced combination amplification circuit and a power supply of the power amplifier in the balanced combination amplification circuit, an absorption load at an isolation end of the balanced combination amplification circuit is connected to the isolation end of the balanced combination amplification circuit by using the second switch, and an output end of the balanced combination amplification circuit is connected to the first end of the impedance adjustment circuit;
when the antenna transmits the amplified first signal, the first switch and the second switch are in a closed state; and
when the antenna receives the second signal, the first switch and the second switch are in an open state.