RF signal processing circuit and RF front-end unit with multiple working modes
A radio frequency signal and processing circuit technology, applied in the radio frequency field, can solve the problems of wasting power consumption at the sending end and high signal strength
Active Publication Date: 2022-03-29
GUANGZHOU HUIZHI MICROELECTRONICS
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Problems solved by technology
[0003] However, when the distance between the receiving end of the radio frequency signal and the sending end of the radio frequency signal is relatively close, the sending end also sends a relatively high-power radio frequency signal to the receiving end, so that the signal strength received by the receiving end is relatively large, far exceeding the receiving end. The terminal needs to receive the signal, thus wasting the power consumption of the transmitting terminal
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[0056] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the specific technical solutions of the application will be further described in detail below in conjunction with the drawings in the embodiments of the present application. The following examples are used to illustrate the present application, but not to limit the scope of the present application.
[0057] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used herein in the specification of the application are only for the purpose of describing specific embodiments, and are not intended to limit the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.
[0058] The radio frequency signal processing circuit at the transm...
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The embodiment of the present application discloses a radio frequency signal processing circuit and a radio frequency front-end unit with multiple working modes, which are applied to the transmitting end. The circuit includes: the control module, which is used to receive the signal of the radio frequency signal When the parameter is less than the first threshold, control the first switch and the third switch to be turned off, and control the second switch to be closed; so that the radio frequency signal input to the radio frequency signal processing circuit passes through the drive module Perform the first amplification and output after the second amplification through the power amplification module; the control module is used for the signal parameter of the radio frequency signal received at the receiving end not less than the first threshold In this case, the first switch and the third switch are controlled to be closed, and the second switch is controlled to be opened; so that after the radio frequency signal input to the radio frequency signal processing circuit is output from the first capacitor, it passes through the The power amplifying module outputs after amplifying.
Description
technical field [0001] The present application relates to the field of radio frequency technology, in particular to a radio frequency signal processing circuit and a radio frequency front-end unit with multiple working modes. Background technique [0002] In the communication system, due to the relatively long distance between the receiving end of the radio frequency signal and the sending end of the radio frequency signal, and poor channel conditions, the strength of the signal received by the receiving end is relatively small, so that the receiving end cannot meet the requirements of the received signal. need. At this time, the sending end needs to send a relatively high-power radio frequency signal to the receiving end, so as to meet the receiving end's demand for receiving signals. [0003] However, when the distance between the receiving end of the radio frequency signal and the sending end of the radio frequency signal is relatively close, the sending end also sends a...
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IPC IPC(8): H04B1/00H04B1/401
CPCH04B1/006H04B1/401
Inventor 苏强侯竟骁
Owner GUANGZHOU HUIZHI MICROELECTRONICS