Radio frequency front end module and radio frequency signal processing method
A radio frequency signal and radio frequency front-end technology, applied in the field of signal transmission in wireless communication, can solve the problems of increasing the number of chips used, increasing the area and volume of FEM modules, and high cost, and achieving the goal of reducing area, saving quantity, and reducing manufacturing costs Effect
Pending Publication Date: 2017-08-25
GUANGZHOU HUIZHI MICROELECTRONICS
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As a result, the area and volume of the entire FEM module increases, the number of chips used increases, and the cost is high
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[0019] In order to understand the characteristics and technical contents of the embodiments of the present invention in more detail, the implementation of the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. The attached drawings are only for reference and description, and are not intended to limit the present invention.
[0020] In the description of the embodiments of the present invention, it should be noted that, unless otherwise stated and limited, the term "connection" should be understood in a broad sense, for example, it can be an electrical connection, it can also be the internal communication of two elements, and it can be a direct connection , can also be indirectly connected through an intermediary, and those of ordinary skill in the art can understand the specific meanings of the above terms according to specific situations.
[0021] It should be noted that the term "first\second\third" involved i...
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The invention discloses a radio frequency front end module, comprising an amplifier, a switch and a filter. The switch is used for connecting the amplifier with an antenna and connecting the amplifier with the filter, thereby forming a first signal channel in the radio frequency front end module, when a radio frequency signal needs to be transmitted and the transmitted radio frequency signal from a baseband chip needs to be filtered by the radio frequency front end module. The first signal channel is used for amplifying and filtering the radio frequency signal transmitted in the first signal channel. The switch is also used for connecting the amplifier with the antenna, thereby forming a second signal channel in the radio frequency front end module, when the transmitted radio frequency signal does not need to be filtered by the radio frequency front end module. The second signal channel is used for amplifying the radio frequency signal transmitted in the second signal channel. The invention also discloses a radio frequency signal processing method.
Description
technical field [0001] The invention relates to signal transmission technology in wireless communication, in particular to a radio frequency front-end module and a radio frequency signal processing method. Background technique [0002] In the prior art, a radio frequency front-end module (FEM, Front-end module) is a chip composed of a power amplifier and a multi-channel switch. If the received multi-frequency mobile signal is a radio frequency signal that needs to be filtered, it is also necessary to connect an external power amplifier and filter of the corresponding frequency band to the transmit / receive switch of the FEM to achieve. As a result, the area and volume of the entire FEM module increases, the number of chips used increases, and the cost is high. Contents of the invention [0003] In view of this, the embodiment of the present invention expects to provide a radio frequency front-end module and a radio frequency signal processing method, through which the norm...
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IPC IPC(8): H04B1/40
CPCH04B1/40H04B1/0475H04B2001/0408H04B1/0458
Inventor 徐柏鸣苏强奕江涛李平
Owner GUANGZHOU HUIZHI MICROELECTRONICS