Patent ID: 11936443
Assignee: SMARTER MICROELECTRONICS (GUANG ZHOU) CO., LTD.
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 7:
8. A power distribution circuit, which is applied to a radio frequency front-end transceiving apparatus, comprising: a common-stage amplifying circuit and a branch-stage amplifying circuit, wherein the branch-stage amplifying circuit comprises at least two parallel channel amplifying circuits;
the common-stage amplifying circuit is configured to perform a first signal processing on a radio frequency signal received by an antenna of the radio frequency front-end transceiving apparatus to obtain a first power signal, and output the first power signal to each of the channel amplifying circuits, respectively, wherein, the first signal processing at least includes a buffering processing, an isolation processing and a low-noise amplifying processing;
each of channel amplifying circuits is configured to perform a second signal processing on the first power signal to obtain a second power signal, and output the second power signal to a radio transceiving device of the radio frequency front-end transceiving apparatus; and
the second signal processing at least includes a low-noise amplifying processing;
wherein the common-stage amplifying circuit comprises a low-noise amplifying circuit structure, which is configured to perform the first signal processing on the radio frequency signal received by the antenna of the radio frequency front-end transceiving apparatus to obtain the first power signal, and output the first power signal to each of the channel amplifying circuits;
wherein the common-stage amplifying circuit further comprises an input impedance matching circuit;
wherein, the input impedance matching circuit is configured to perform an input impedance matching processing on the radio frequency signal received by the antenna of the radio frequency front-end transceiving apparatus to obtain an input impedance matching processed radio frequency signal, and output the input impedance matching processed radio frequency signal to the low-noise amplifying circuit structure; and
correspondingly, the low-noise amplifying circuit structure is configured to perform the first signal processing on the input impedance matching processed radio frequency signal to obtain the first power signal, and output the first power signal to each of the channel amplifying circuits.