A signal processing module applied to radio frequency transceiver link
A signal processing module and radio frequency transceiver technology, applied in the field of wireless communication, can solve problems affecting system performance, system transmission characteristics, radio frequency channel standing wave and insertion loss increase, etc., to reduce interference, ensure availability, fast and flexible Effect of Transceiver State Switching
Active Publication Date: 2022-05-20
XIAN BORUI JIXIN ELECTRONICS TECH
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Problems solved by technology
However, as the operating frequency of the transmitted signal increases, the parallel connection on the RF channel will have an impact on the transmission characteristics of the system
If it is not handled properly, it will cause the standing wave and insertion loss of each RF channel to increase, which will affect the performance of the system
Method used
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[0022] The present invention will be further described in detail below with reference to the accompanying drawings, so that those skilled in the art can refer to the description and implement accordingly.
[0023] It should be understood that terms such as "having", "comprising" and "including" as used herein do not assign the presence or addition of one or more other elements or combinations thereof.
[0024] The terms "first" and "second" in the description and claims of the embodiments of the present invention are used to distinguish different objects, rather than to describe a specific order of the objects. For example, the first SP4 throw switch and the second SP4 throw switch are used to distinguish between different SP4 throw switches, not to describe a specific sequence of SP4 throw switches.
[0025] like figure 1 As shown, an embodiment of the present invention provides a radio frequency link signal processing module, which has two signal processing modes, a signal ...
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The invention discloses a signal processing module applied to a radio frequency transceiver link, which includes a signal transmitting mode and a signal receiving mode. The radio frequency signal transmission mode circuit includes: antenna common port, first single-pole four-throw switch, second single-pole four-throw switch, filters A, B, C, D, E, F, third single-pole four-throw switch, fourth A single-pole four-throw switch and a signal transmitting port; the signal receiving mode circuit includes: a signal receiving port, a first single-pole double-throw switch, a second single-pole double-throw switch, an attenuation circuit, a limiting circuit, a first single-pole four-throw switch, a second Two single-pole four-throw switches and the common terminal of the antenna. The present invention can realize signal transmission in two states of sending and receiving, suppress the harmonics of output signals in different frequency bands in the transmitting state, protect the radio frequency receiving channel in the receiving state, and realize the straight-through state and attenuation state Switching to ensure the availability of the received signal.
Description
technical field [0001] The invention relates to the field of wireless communication, in particular to a signal processing module applied to a radio frequency transceiver link, which has two signal processing modes, a signal transmission mode and a signal reception mode. Background technique [0002] With the continuous development of wireless communication technology, the transmission of sound and image can be realized by using wireless communication technology. According to the classical communication transceiver architecture, there are certain harmonics of the transmitted signal in the transmitted signal in the transmitting state, and after these harmonic signals are received by the corresponding equipment in the communication link, the useful signal demodulated by the receiver will appear. distortion. At the same time, in order to reduce the influence of unnecessary electromagnetic radiation on other communication devices, it is necessary to filter out harmonics and spur...
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IPC IPC(8): H04B1/40
CPCH04B1/40Y02D30/70
Inventor 吴树辉
Owner XIAN BORUI JIXIN ELECTRONICS TECH