Receiver RF front-end module and receiver

Abstract

The present disclosure relates to a receiver radio frequency front-end module and a receiver, wherein the receiver radio frequency front-end module includes a low noise amplifier for receiving and amplifying a target signal containing an interference signal of a first channel, wherein the interference signal includes a crosstalk signal generated by a clock generation module; a crosstalk extraction module is connected to the clock generation module, and is used to obtain and output the crosstalk signal; an input end of a transconductance unit is connected to an output end of the low noise amplifier and an output end of the crosstalk extraction module, and is used to receive a target signal and a crosstalk signal, and output a target current signal according to a difference between the target signal and the crosstalk signal; wherein the target current signal does not contain a crosstalk signal. The present disclosure can improve the anti-interference capability of a receiver and improve signal quality.

Description

Technical Field

[0001] The present disclosure relates to the field of communication technology, and in particular to a receiver radio frequency front-end module and a receiver. Background Art

[0002] The Global Navigation Satellite System (GNSS) can achieve all-weather, global and high-precision continuous navigation and positioning, and has developed rapidly in recent years. At the same time, the requirements of GNSS on the quality of signals received by radio frequency receivers are also gradually increasing.

[0003] However, with the continuous increase in the functions of integrated chips, the receiver RF front end, which is sensitive to noise, crosstalk, etc., is extremely susceptible to interference, which in turn deteriorates the quality of the RF signal.

[0004] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0005] The purpose of the present disclosure is to provide a receiver radio frequency front-end module and a receiver, thereby overcoming the problem of deterioration in the quality of signals received by the radio frequency receiver at least to a certain extent.

[0006] According to a first aspect of the present disclosure, a receiver radio frequency front-end module is provided, wherein the receiver radio frequency front-end module is arranged in a chip, the chip includes a first clock generation module, and the receiver includes a first channel, including:

[0007] A low noise amplifier, used for receiving and amplifying the target signal containing the interference signal of the first channel; wherein the interference signal comprises a first crosstalk signal generated by the first clock generation module;

[0008] A first crosstalk extraction module, connected to the first clock generation module, configured to obtain and output the first crosstalk signal;

[0009] a transconductance unit, whose input end is connected to the output end of the low noise amplifier and the output end of the first crosstalk extraction module, for receiving the target signal and the first crosstalk signal, and outputting a target current signal according to a difference between the target signal and the first crosstalk signal;

[0010] The mixer is coupled to the output end of the transconductance unit and is used for receiving and frequency converting the target current signal.

[0011] Optionally, the first crosstalk extraction module is a low noise amplifier having the same structure as the low noise amplifier.

[0012] Optionally, the first crosstalk extraction module is a passive device network.

[0013] Optionally, the output impedance of the passive device network is the same as the output impedance of the low noise amplifier.

[0014] Optionally, the passive device network is an AC coupling network.

[0015] Optionally, the receiver further includes at least one second channel, and the interference signal further includes a second crosstalk signal generated by a second clock generation module from the second channel;

[0016] The receiver RF front-end module also includes a second crosstalk extraction module, connected to the second clock generation module, and configured to obtain and output the second crosstalk signal;

[0017] The input end of the transconductance unit is also connected to the output end of the second crosstalk extraction module. The transconductance unit is also used to receive the second crosstalk signal, perform weighted summation on the first crosstalk signal and the second crosstalk signal to obtain a weighted sum value, and output the target current signal according to the difference between the target signal and the weighted sum value.

[0018] According to a second aspect of the present disclosure, a receiver radio frequency front-end module is provided, wherein the receiver comprises a first channel and a second channel, including:

[0019] A first low noise amplifier, used for receiving and amplifying a first target signal containing a first interference signal of the first channel; wherein the first interference signal comprises a first crosstalk signal generated by a first clock generation module from the second channel;

[0020] A first crosstalk extraction module, connected to the first clock generation module, configured to obtain and output the first crosstalk signal;

[0021] a first transconductance unit, whose input end is connected to the output end of the first low noise amplifier and the output end of the first crosstalk extraction module, for receiving the first target signal and the first crosstalk signal, and outputting a first target current signal according to a difference between the first target signal and the first crosstalk signal;

[0022] The first mixer is coupled to the output end of the first transconductance unit and is used for receiving, frequency converting and outputting the first target current signal.

[0023] Optionally, the first crosstalk extraction module is a low noise amplifier having the same structure as the first low noise amplifier.

[0024] Optionally, the first crosstalk extraction module is a passive device network.

[0025] Optionally, the output impedance of the passive device network is the same as the output impedance of the first low noise amplifier.

[0026] Optionally, the passive device network is an AC coupling network.

[0027] Optionally, the receiver RF front-end module further includes:

[0028] A second low noise amplifier, used for receiving and amplifying a second target signal containing a second interference signal in the second channel; wherein the second interference signal comprises a second crosstalk signal generated by a second clock generation module from the first channel;

[0029] A second crosstalk extraction module, connected to the second clock generation module, configured to obtain and output the second crosstalk signal;

[0030] a second transconductance unit, whose input end is also connected to the output end of the second low noise amplifier and the output end of the second crosstalk extraction module, for receiving the second target signal and the second crosstalk signal, and outputting a second target current signal according to the difference between the second target signal and the second crosstalk signal;

[0031] The second mixer is coupled to the output end of the second transconductance unit and is used for receiving and frequency converting the second target current signal.

[0032] Optionally, the receiver includes at least one third channel, and the first interference signal further includes a third crosstalk signal generated by a third clock generation module from the third channel;

[0033] The receiver RF front-end module also includes a third crosstalk extraction module, connected to the third clock generation module, for acquiring and outputting the third crosstalk signal;

[0034] The input end of the first transconductance unit is also connected to the output end of the third crosstalk extraction module. The first transconductance unit is also used to receive the third crosstalk signal, and perform weighted summation on the first crosstalk signal and the third crosstalk signal to obtain a weighted sum value, and then output the first target current signal according to the difference between the first target signal and the weighted sum value.

[0035] Optionally, the first crosstalk extraction module is connected to a bias point, a power supply or a ground of the first clock generation module.

[0036] According to a third aspect of the present disclosure, a receiver radio frequency front-end module is provided, wherein the receiver comprises a first channel and a second channel, including:

[0037] A low noise amplifier, used for receiving and amplifying a target signal containing an interference signal in the first channel, wherein the interference signal includes a crosstalk signal generated by a clock generation module from the second channel;

[0038] A crosstalk extraction module, connected to a power supply or a ground of the first channel, for acquiring and outputting the crosstalk signal; wherein the first channel and the second channel share the power supply and the ground;

[0039] a transconductance unit, whose input end is connected to the output end of the low noise amplifier and the output end of the crosstalk extraction module, for receiving the target signal and the crosstalk signal, and outputting a target current signal according to the difference between the target signal and the crosstalk signal;

[0040] The mixer is coupled to the output end of the transconductance unit and is used for receiving and frequency converting the target current signal.

[0041] Optionally, the crosstalk extraction module is a low noise amplifier having the same structure as that of the low noise amplifier.

[0042] Optionally, the crosstalk extraction module is a passive device network.

[0043] Optionally, the output impedance of the passive device network is the same as the output impedance of the low noise amplifier.

[0044] Optionally, the passive device network is an AC coupling network.

[0045] According to a fourth aspect of the present disclosure, a receiver is provided, including:

[0046] A receiver radio frequency front-end module as described in any one of the above items;

[0047] a phase-locked loop coupled to the receiver radio frequency front-end module;

[0048] a transimpedance filter coupled to an output end of the receiver RF front-end module;

[0049] An analog-to-digital converter is coupled to the output of the transimpedance filter.

[0050] The technical solution provided by the present disclosure may have the following beneficial effects:

[0051] The receiver RF front-end module and receiver in the exemplary embodiment of the present disclosure, on the one hand, can extract the crosstalk signal in the receiver by directly setting the crosstalk extraction module, and can process the crosstalk signal through the transconductance unit to eliminate the crosstalk signal, so as to achieve the purpose of improving the anti-interference ability of the receiver RF front-end and improving the signal quality. On the other hand, by connecting the crosstalk extraction module with the clock generation module that generates the crosstalk signal, the crosstalk signal can be directly obtained, which improves the accuracy of the crosstalk signal extraction. On the other hand, by connecting the output end of the low-noise amplifier and the output end of the crosstalk extraction module to the transconductance unit respectively, the crosstalk signal in the target signal can be eliminated, thereby achieving the purpose of resisting the interference of the crosstalk signal, and at the same time improving the anti-interference ability of the receiver. In addition, the receiver RF front-end module in the embodiment of the present disclosure can be based on a zero intermediate frequency structure, which can solve the crosstalk problem while almost not increasing the power consumption and volume of the receiver.

[0052] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] The drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present disclosure, and together with the specification, are used to explain the principles of the present disclosure. Obviously, the drawings described below are only some embodiments of the present disclosure, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0054] Figure 1 A schematic diagram of the structure of a receiver radio frequency front-end module according to an exemplary embodiment of the present disclosure is shown;

[0055] Figure 2 A schematic diagram of the structure of another receiver radio frequency front-end module according to an exemplary embodiment of the present disclosure is shown;

[0056] Figure 3 A schematic diagram of the structure of another receiver radio frequency front-end module according to an exemplary embodiment of the present disclosure is shown;

[0057] Figure 4 A schematic diagram of the structure of another receiver radio frequency front-end module according to an exemplary embodiment of the present disclosure is shown;

[0058] Figure 5 A schematic diagram of the structure of another receiver radio frequency front-end module according to an exemplary embodiment of the present disclosure is shown;

[0059] Figure 6A schematic diagram of the structure of another receiver radio frequency front-end module according to an exemplary embodiment of the present disclosure is shown;

[0060] Figure 7 A schematic structural diagram of a receiver according to an exemplary embodiment of the present disclosure is shown schematically. DETAILED DESCRIPTION

[0061] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be comprehensive and complete and will fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar parts, and thus their repeated description will be omitted.

[0062] In addition, the described features, structures or characteristics may be combined in one or more embodiments in any suitable manner. In the following description, many specific details are provided to provide a full understanding of the embodiments of the present disclosure. However, those skilled in the art will appreciate that the technical solutions of the present disclosure may be practiced without one or more of the specific details, or other methods, components, devices, steps, etc. may be adopted. In other cases, known structures, methods, devices, implementations, materials or operations are not shown or described in detail to avoid blurring the various aspects of the present disclosure.

[0063] The single-channel RF receiving system is used to receive and process wireless signals from the antenna, and convert the RF analog signal into a digital signal through amplification, mixing, analog-to-digital conversion, etc., for digital baseband processing and analysis. The RF front end refers to the part between the antenna and the intermediate frequency (or baseband) circuit in the communication system. In this section, the signal is transmitted in the form of RF.

[0064] With the development and application of SoC chips (System-on-a-Chip, integrated circuit chips), the functions of SoC chips are constantly increasing, and the components that affect RF signals are also increasing. As a result, the receiver RF front-end modules that are sensitive to noise, crosstalk, etc. are extremely susceptible to interference, thereby deteriorating the quality of RF signals.

[0065] In addition, with the implementation of the GPS (Global Positioning System) modernization plan and the construction and continuous improvement of satellite navigation and positioning systems such as Russia's GLONASS (GLOBAL NAVIGATION SATELLITE SYSTEM), Europe's Galileo (Galileo Satellite Navigation System) and China's Beidou, GNSS receivers are developing in the direction of multi-frequency and multi-mode.

[0066] Due to the wide distribution of GNSS spectrum, dual-channel or multi-channel receivers are often required in SoC chips for signal reception and demodulation. Different channels usually work in different frequency bands and are used to receive and demodulate wireless signals in different frequency bands. The increase in channels will inevitably lead to crosstalk between channels, which makes it difficult to meet the needs of GNSS systems with high anti-interference requirements.

[0067] Based on this, the exemplary embodiments of the present disclosure describe various receiver RF front-end modules through different embodiments, which are respectively used for single-channel RF receivers, dual-channel RF receivers and multi-channel RF receivers, etc., to improve the anti-interference capabilities of different receivers.

[0068] Embodiment 1

[0069] Reference Figure 1 , shows a schematic structural diagram of a receiver RF front-end module according to an exemplary embodiment of the present disclosure. The receiver RF front-end module can be used for a single-channel RF receiver.

[0070] like Figure 1 As shown, the receiver RF front-end module may include a low noise amplifier 110, a first crosstalk extraction module 120, a transconductance unit 130 and a mixer 140, wherein the receiver RF front-end module is arranged in a chip 100, the chip 100 includes a first clock generation module 150, and the receiver includes a first channel 160.

[0071] In this exemplary embodiment, the low noise amplifier 110 is used to receive and amplify the target signal containing the interference signal of the first channel 160, wherein the interference signal includes the first crosstalk signal generated by the first clock generation module 150. That is, the target signal received by the low noise amplifier 110 contains the first crosstalk signal from the chip 100, and while the target signal is amplified, the first crosstalk signal will always follow the target signal and be transmitted.

[0072] In practical applications, the first crosstalk signal is generated by the clock signal of the first clock generating module 150 and its higher harmonic components, and the target signal is a voltage signal.

[0073] In this exemplary embodiment, the first crosstalk extraction module 120 is connected to the first clock generation module 150 to obtain and output the first crosstalk signal. In this embodiment 1, by connecting the first crosstalk extraction module 120 to the first clock generation module 150 that generates the first crosstalk signal, the first crosstalk signal generated by the first clock generation module 150 can be directly extracted, thereby improving the accuracy of the extracted signal.

[0074] In practical applications, the first crosstalk extraction module 120 can have various structural forms as long as it can achieve the purpose of extracting the first crosstalk signal. This exemplary embodiment mainly uses the following three methods as examples, and other crosstalk extraction methods that can achieve the same effect also fall within the scope of protection of this exemplary embodiment.

[0075] First, the first crosstalk extraction module 120 can be a low noise amplifier with the same structure as the low noise amplifier 110. That is, by setting a low noise amplifier with the same structure as the low noise amplifier 110 to extract the first crosstalk signal, the first crosstalk signal can be extracted and processed like the low noise amplifier 110, so that a signal identical to the first crosstalk signal in the target signal can be obtained.

[0076] Second, the first crosstalk extraction module 120 can also be a passive device network. Among them, a passive device is a device that can independently show its external characteristics without relying on the existence of an external power supply. Passive devices mainly include resistors, capacitors, inductors, etc., and their common feature is that they can work when there is a signal without adding a power supply in the circuit. Therefore, a network composed of passive devices can also be used to extract crosstalk signals.

[0077] In this exemplary embodiment, by constructing a load network consistent with the low-noise amplifier 110, the output impedance of the passive device network can be made the same as the output impedance of the low-noise amplifier 110, and the first crosstalk signal can be output through the same load network as the low-noise amplifier 110, and the same extraction effect can be achieved, so that the first crosstalk signal passing through the passive device network is the same as or similar to the first crosstalk signal passing through the low-noise amplifier 110.

[0078] In practical applications, there are many ways to construct a passive device network, which can be achieved through different series and parallel connection methods between resistors, capacitors, and inductors, as long as the output impedance of the passive device network is the same as the output impedance of the low-noise amplifier 110. This exemplary embodiment does not specifically limit this.

[0079] The third type is that the first crosstalk extraction module 120 is also a passive device network. Different from the second type, the passive device network is an AC coupling network, wherein the AC coupling network is coupled by connecting capacitors in series in the line, and the type of capacitors is not limited. The function of AC coupling is to remove the DC component in the signal to achieve the purpose of isolating DC and passing AC.

[0080] In practical applications, the crosstalk signal is mostly an AC signal. Therefore, this exemplary embodiment can achieve the purpose of extracting the first crosstalk signal by setting an AC coupling network.

[0081] In this exemplary embodiment, the first crosstalk extraction module 120 may be connected to a bias point or a power supply or a ground of the first clock generation module 150 .

[0082] In this exemplary embodiment, the input end of the transconductance unit 130 is connected to the output end of the low noise amplifier 110 and the output end of the first crosstalk extraction module 120, and is used to receive the target signal and the first crosstalk signal, and output the target current signal according to the difference between the target signal and the first crosstalk signal. The target current signal does not contain the first crosstalk signal.

[0083] In practical applications, the function of the transconductance unit 130 is to convert multiple voltage values ​​(such as the target signal and the first crosstalk signal) input at the input end into multiple current values ​​respectively. Its transconductance can apply different values ​​to achieve a weighted function. The converted current forms a differential to eliminate the first crosstalk signal, that is, by converting the voltage into the current, it is possible to output the target current signal according to the difference in the input voltage values.

[0084] In this exemplary embodiment, the mixer 140 is coupled to the output end of the transconductance unit 130, and is used to receive and frequency-convert the target current signal. The mixer 140 can convert the input target current signal from one frequency to another frequency, for example, converting the high-frequency first target current signal into a low-frequency signal, so that the intermediate frequency amplifier, filter, analog-to-digital converter and other hardware after the RF front end of the receiver can process the signal.

[0085] According to the receiver RF front-end module in this example embodiment, on the one hand, by directly setting the first crosstalk extraction module, the first crosstalk signal in the receiver can be extracted, and the first crosstalk signal can be processed by the transconductance unit to eliminate the first crosstalk signal, thereby achieving the purpose of improving the anti-interference capability of the receiver RF front-end and improving the signal quality. On the other hand, by connecting the first crosstalk extraction module to the first clock generation module that generates the first crosstalk signal, the first crosstalk signal can be directly obtained, thereby improving the accuracy of the extraction of the first crosstalk signal. On the other hand, by connecting the output end of the low-noise amplifier and the output end of the first crosstalk extraction module to the transconductance unit respectively, the first crosstalk signal in the target signal can be eliminated, thereby achieving the purpose of resisting the interference of the first crosstalk signal, and at the same time improving the anti-interference capability of the receiver.

[0086] In addition, the receiver RF front-end module in the embodiment of the present disclosure can be based on a zero intermediate frequency structure, which can solve the crosstalk problem while hardly increasing the power consumption and volume of the receiver. Moreover, the receiver RF front-end module is applicable to a single-channel RF receiver in which the chip generates crosstalk to the first channel, and is also applicable to a dual-channel RF receiver and a multi-channel RF receiver in which only the chip generates crosstalk to the first channel.

[0087] Embodiment 2

[0088] Based on Example 1, refer to Figure 2 , shows a schematic structural diagram of another receiver RF front-end module according to an exemplary embodiment of the present disclosure. The receiver RF front-end module is suitable for a RF front-end module of a dual-channel or multi-channel RF receiver.

[0089] In the receiver RF front-end module disclosed in this exemplary embodiment, the receiver also includes at least one second channel 170, wherein when there is one second channel 170, the receiver is a dual-channel RF receiver, and when there are two or more second channels 170, the receiver is a multi-channel RF receiver. Figure 2 Only a RF front-end module of a dual-channel RF receiver is shown, and a multi-channel one can be implemented by reference.

[0090] like Figure 2 As shown, the first interference signal also includes a second crosstalk signal generated by the second clock generation module 180 from the second channel 170. That is, in this embodiment, the first interference signal following the first target signal includes two crosstalk signals, the first crosstalk signal and the second crosstalk signal.

[0091] In this exemplary embodiment, the receiver RF front-end module further includes a second crosstalk extraction module 190, which is connected to the second clock generation module 180 and is used to obtain and output a second crosstalk signal. By connecting the second crosstalk extraction module 190 to the second clock generation module 180 that generates the second crosstalk signal, the second crosstalk signal generated by the second clock generation module 180 can be directly extracted, thereby improving the accuracy of the extracted signal.

[0092] In practical applications, the second crosstalk extraction module 190 may also have a variety of structural forms, and specific reference may be made to the structural setting of the first crosstalk extraction module 120. This exemplary embodiment will not be repeated in detail. In this exemplary embodiment, the second crosstalk extraction module 190 may be connected to the bias point or power supply or ground of the second clock generation module 180.

[0093] It should be noted that, in the actual process of building the receiver RF front-end module in the second embodiment, the first crosstalk extraction module 120 and the second crosstalk extraction module 180 can be any combination of the above three structural forms, and this exemplary embodiment does not specifically limit this.

[0094] In this exemplary embodiment, the input end of the transconductance unit 130 is also connected to the output end of the second crosstalk extraction module 190, and the transconductance unit 130 is also used to receive the second crosstalk signal, that is, the transconductance unit 130 simultaneously receives three signals: a target signal containing the first crosstalk signal and the second crosstalk signal, the first crosstalk signal, and the second crosstalk signal. In addition, the transconductance unit 130 can also perform weighted summation on the first crosstalk signal and the second crosstalk signal to obtain a weighted sum value, and output a target current signal according to the difference between the target signal and the weighted sum value; wherein the obtained target current signal does not contain the first crosstalk signal and the second crosstalk signal.

[0095] That is to say, the three signals are received simultaneously by the transconductance unit 130, and the three signals are summed. Specifically, the first crosstalk signal and the second crosstalk signal are weighted and summed to obtain a weighted sum value, wherein the weighted sum can determine the interference ratio according to the different weighting coefficients of the first crosstalk signal and the second crosstalk signal to the target signal, so as to obtain a crosstalk signal that is closer to the actual crosstalk signal followed by the target signal. Then, the target signal is subtracted and summed from the weighted sum value, so that the first crosstalk signal and the second crosstalk signal that cause the impact can be subtracted from the target signal, so as to achieve the purpose of eliminating the first crosstalk signal and the second crosstalk signal, so that the anti-interference ability of the receiver RF front-end module is improved.

[0096] In practical applications, the weighting coefficient can be determined based on the quotient of the energy values ​​of the first crosstalk signal and the second crosstalk signal at the crosstalk frequency point and the energy value of the amplified target signal output by the low-noise amplifier 110 at the crosstalk frequency point, thereby obtaining the interference ratio of the first crosstalk signal and the second crosstalk signal.

[0097] According to the receiver RF front-end module in this example embodiment, on the one hand, by simultaneously setting the first crosstalk extraction module and the second crosstalk extraction module, the first crosstalk signal and the second crosstalk signal in the receiver can be extracted respectively, and the target signal, the first crosstalk signal and the second crosstalk signal can be summed through the transconductance unit to eliminate the first crosstalk signal and the second crosstalk signal in the target signal, thereby improving the anti-interference ability of the receiver RF front-end and improving the signal quality. In addition, the receiver RF front-end module in the embodiment of the present disclosure is suitable for dual-channel or multi-channel receivers in which the chip and other channels generate crosstalk to the first channel.

[0098] Embodiment 3

[0099] Reference Figure 3 , shows a schematic structural diagram of another receiver RF front-end module according to an exemplary embodiment of the present disclosure. The receiver RF front-end module belongs to the RF front-end module of a dual-channel RF receiver.

[0100] like Figure 3 As shown, the receiver RF front-end module may include a first low noise amplifier 210, a first crosstalk extraction module 220, a first transconductance unit 230 and a first mixer 240, wherein the receiver including the receiver RF front-end module includes: a first channel 250 and a second channel 260.

[0101] In this exemplary embodiment, the first low noise amplifier 210 is used to receive and amplify the first target signal of the first channel 250 containing the first interference signal; wherein the first interference signal includes the first crosstalk signal generated by the first clock generation module 270 from the second channel 260. That is, the first target signal in the first channel 250 received by the first low noise amplifier 210 contains the first crosstalk signal from another second channel 260, and the first crosstalk signal is transmitted following the first target signal.

[0102] In practical applications, the first crosstalk signal is generated by the clock signal of the first clock generating module 270 and its higher harmonic components, and the first target signal is a voltage signal.

[0103] In this exemplary embodiment, the first crosstalk extraction module 220 is connected to the first clock generation module 270 to obtain and output the first crosstalk signal. In this exemplary embodiment, by connecting the first crosstalk extraction module 220 to the first clock generation module 270 that generates the first crosstalk signal, the first crosstalk signal generated by the first clock generation module 270 can be directly extracted, thereby improving the accuracy of the extracted signal.

[0104] In practical applications, the first crosstalk extraction module 220 can have a variety of structural forms as long as it can achieve the purpose of extracting the first crosstalk signal. This exemplary embodiment mainly uses the following three methods as examples, and other crosstalk extraction methods that can achieve the same effect also fall within the scope of protection of this exemplary embodiment.

[0105] First, the first crosstalk extraction module 220 can be a low noise amplifier with the same structure as the first low noise amplifier 210. That is, by setting a low noise amplifier with the same structure as the first low noise amplifier 210 to extract the first crosstalk signal, the first crosstalk signal can be extracted and processed like the first low noise amplifier 210, so that a signal identical to the first crosstalk signal in the first target signal can be obtained.

[0106] Second, the first crosstalk extraction module 220 can also be a passive device network. Among them, passive devices are devices that can independently show their external characteristics without relying on the existence of an external power supply. Passive devices mainly include resistors, capacitors, inductors, etc., and their common feature is that they can work when there is a signal without adding a power supply in the circuit. Therefore, a network composed of passive devices can also be used to extract crosstalk signals.

[0107] In this exemplary embodiment, by constructing a load network consistent with the first low noise amplifier 210, the output impedance of the passive device network can be made the same as the output impedance of the first low noise amplifier 210, and the first crosstalk signal can be output through the same load network as the first low noise amplifier 210, and the same extraction effect can be achieved, so that the first crosstalk signal passing through the passive device network is the same as or similar to the first crosstalk signal passing through the first low noise amplifier 210.

[0108] In practical applications, there are many ways to construct a passive device network, which can be achieved through different series and parallel connection methods between resistors, capacitors, and inductors, as long as the output impedance of the passive device network is the same as the output impedance of the first low-noise amplifier 210. This exemplary embodiment does not make specific limitations on this.

[0109] The third type is that the first crosstalk extraction module 220 is also a passive device network. Different from the second type, the passive device network is an AC coupling network, wherein the AC coupling network is coupled by connecting capacitors in series in the line, and the type of capacitors is not limited. The function of AC coupling is to remove the DC component in the signal to achieve the purpose of isolating DC and passing AC.

[0110] In practical applications, the crosstalk signal is mostly an AC signal. Therefore, this exemplary embodiment can achieve the purpose of extracting the first crosstalk signal by setting an AC coupling network.

[0111] In this exemplary embodiment, the first crosstalk extraction module 220 may be connected to a bias point or a power supply or a ground of the first clock generation module 270 .

[0112] In this exemplary embodiment, the input end of the first transconductance unit 230 is connected to the output end of the first low noise amplifier 210 and the output end of the first crosstalk extraction module 220, and is used to receive the first target signal and the first crosstalk signal, and output the first target current signal according to the difference between the first target signal and the first crosstalk signal. The first target current signal does not contain the first crosstalk signal.

[0113] In practical applications, the function of the first transconductance unit 230 is to convert multiple voltage values ​​(such as the first target signal and the first crosstalk signal) input at the input end into multiple current values ​​respectively, and its transconductance can apply different values ​​to realize the weighted function. The converted current forms a differential to eliminate the first crosstalk signal, that is, by converting the voltage into the current, it is possible to output the first target current signal according to the difference in the input voltage values.

[0114] In this exemplary embodiment, the first mixer 240 is coupled to the output end of the first transconductance unit 230, and is used to receive, perform frequency conversion processing, and output the first target current signal. The first mixer 240 can convert the input first target current signal from one frequency to another frequency, for example, converting the high-frequency first target current signal into a low-frequency signal, so that the intermediate frequency amplifier, filter, analog-to-digital converter and other hardware after the RF front end of the receiver can process the signal.

[0115] According to the receiver RF front-end module in this example embodiment, on the one hand, by directly setting the first crosstalk extraction module, the first crosstalk signal in the receiver can be extracted, and the first crosstalk signal can be processed by the first transconductance unit to eliminate the first crosstalk signal, thereby achieving the purpose of improving the anti-interference capability of the receiver RF front-end and improving the signal quality. On the other hand, by connecting the first crosstalk extraction module to the first clock generation module that generates the first crosstalk signal, the first crosstalk signal can be directly obtained, thereby improving the accuracy of the extraction of the first crosstalk signal. On the other hand, by connecting the output end of the first low-noise amplifier and the output end of the first crosstalk extraction module to the first transconductance unit respectively, the first crosstalk signal in the first target signal can be eliminated, thereby achieving the purpose of resisting the interference of the first crosstalk signal, while improving the anti-interference capability of the receiver.

[0116] In addition, the receiver RF front-end module in the embodiment of the present disclosure can be based on a zero intermediate frequency structure, which can solve the crosstalk problem while hardly increasing the power consumption and volume of the receiver. Moreover, the receiver RF front-end module is applicable to a dual-channel RF receiver in which one channel generates crosstalk to another channel, and is also applicable to a multi-channel RF receiver in which only one channel generates crosstalk to the first channel.

[0117] Embodiment 4

[0118] Based on Example 3, refer to Figure 4 , shows a schematic structural diagram of another receiver RF front-end module according to an exemplary embodiment of the present disclosure. The receiver RF front-end module belongs to the RF front-end module of a dual-channel RF receiver.

[0119] In this exemplary embodiment, the second low noise amplifier 310 is used to receive and amplify the second target signal containing the second interference signal in the second channel 260; wherein the second interference signal includes the second crosstalk signal generated by the second clock generation module 350 from the first channel 250. In other words, the two channels in the RF front-end module of the dual-channel RF receiver interfere with each other.

[0120] In practical applications, the second crosstalk signal is generated by the clock signal of the second clock generating module 350 and its higher harmonic components.

[0121] In this exemplary embodiment, the second crosstalk extraction module 320 is connected to the second clock generation module 350 to obtain and output the second crosstalk signal. By connecting the second crosstalk extraction module 320 to the second clock generation module 350 that generates the second crosstalk signal, the second crosstalk signal generated by the second clock generation module 350 can be directly extracted, and the accuracy of the signal can be improved by signal differentiation.

[0122] In practical applications, the second crosstalk extraction module 320 may also have a variety of structural forms, and specific reference may be made to the structural setting of the first crosstalk extraction module 220. This exemplary embodiment will not be repeated in detail. In this exemplary embodiment, the second crosstalk extraction module 320 may be connected to the bias point or power supply or ground of the second clock generation module 350.

[0123] It should be noted that, in the actual process of building the receiver RF front-end module in the fourth embodiment, the first crosstalk extraction module 220 and the second crosstalk extraction module 320 can be any combination of the above three structural forms, and this exemplary embodiment does not specifically limit this.

[0124] In this exemplary embodiment, the input end of the second transconductance unit 330 is connected to the output end of the second low noise amplifier 310 and the output end of the second crosstalk extraction module 320, and is used to receive the second target signal and the second crosstalk signal, and output the second target current signal according to the difference between the second target signal and the second crosstalk signal, and the second target current signal does not contain the second crosstalk signal.

[0125] The function of the second transconductance unit 330 is to convert multiple voltage values ​​(such as the second target signal and the second crosstalk signal) input at the input end into multiple current values ​​respectively. Its transconductance can apply different values ​​to achieve a weighted function. The converted current forms a differential to eliminate the second crosstalk signal, that is, by converting the voltage into current, it is possible to output the second target current signal according to the difference in the input voltage values.

[0126] In this exemplary embodiment, the second mixer 340 is coupled to the output end of the second transconductance unit 330, and is used to receive, perform frequency conversion processing, and output the first target current signal. The second mixer 340 can convert the input first target current signal from one frequency to another frequency, for example, converting the high-frequency first target current signal into a low-frequency signal, so that the intermediate frequency amplifier, filter, analog-to-digital converter and other hardware after the RF front end of the receiver can process the signal.

[0127] According to the receiver RF front-end module in this example embodiment, the first channel contains the second crosstalk signal of the second channel, and the second channel contains the second crosstalk signal of the first channel. By separately setting a low-noise amplifier, a crosstalk extraction module and a transconductance unit for the two channels, the two channels can be processed to eliminate the crosstalk signals separately, thereby improving the anti-interference capability of the receiver RF front-end module and the quality of the receiver transmission signal.

[0128] Embodiment 5

[0129] Based on Example 3, refer to Figure 5, shows a schematic structural diagram of another receiver RF front-end module according to an exemplary embodiment of the present disclosure. The receiver RF front-end module belongs to the RF front-end module of a multi-channel RF receiver.

[0130] In the receiver RF front-end module disclosed in this exemplary embodiment, the receiver also includes at least one third channel 261, wherein when the third channel 261 is one, the receiver is a three-channel RF receiver, and when the third channel 261 is two or more, the receiver is a four-channel, five-channel, or other multi-channel RF receiver. Figure 5 Only a RF front-end module of a three-channel RF receiver is shown, and other multi-channel ones can be implemented by reference.

[0131] like Figure 5 As shown, the first interference signal also includes a third crosstalk signal generated by the third clock generation module 280 from the third channel 261. That is, in this embodiment, the first interference signal following the first target signal includes two crosstalk signals, the first crosstalk signal and the third crosstalk signal.

[0132] In this exemplary embodiment, the receiver RF front-end module further includes a third crosstalk extraction module 290, which is connected to the third clock generation module 280 and is used to obtain and output a third crosstalk signal. By connecting the third crosstalk extraction module 290 to the third clock generation module 280 that generates the third crosstalk signal, the third crosstalk signal generated by the third clock generation module 280 can be directly extracted, thereby improving the accuracy of the extracted signal.

[0133] In practical applications, the third crosstalk extraction module 290 may also have a variety of structural forms, and specific reference may be made to the structural setting of the first crosstalk extraction module 220. This exemplary embodiment will not be repeated in detail. In this exemplary embodiment, the third crosstalk extraction module 290 may be connected to the bias point or power supply or ground of the third clock generation module 280.

[0134] It should be noted that, in the actual process of building the receiver RF front-end module in this fifth embodiment, the first crosstalk extraction module 220 and the third crosstalk extraction module 290 can be any combination of the above three structural forms, and this exemplary embodiment does not specifically limit this.

[0135] In this exemplary embodiment, the input end of the first transconductance unit 230 is also connected to the output end of the third crosstalk extraction module 290, and the first transconductance unit 230 is also used to receive the third crosstalk signal, that is, the first transconductance unit 230 simultaneously receives three signals: the first target signal containing the first crosstalk signal and the third crosstalk signal, the first crosstalk signal, and the third crosstalk signal. In addition, the first transconductance unit 230 can also perform weighted summation on the first crosstalk signal and the third crosstalk signal to obtain a weighted sum value, and output a second target current signal according to the difference between the first target signal and the weighted sum value; wherein the obtained first target current signal does not contain the first crosstalk signal and the third crosstalk signal.

[0136] That is to say, the first transconductance unit 230 simultaneously receives three signals and performs a sum operation on the three signals. Specifically, the first crosstalk signal and the third crosstalk signal are weighted and summed to obtain a weighted sum value, wherein the weighted sum can determine the interference ratio according to the different weighting coefficients of the first crosstalk signal and the third crosstalk signal to the first target signal, so as to obtain a crosstalk signal that is closer to the actual crosstalk signal followed by the first target signal. Then, the first target signal is subtracted and summed from the weighted sum value, so that the first crosstalk signal and the third crosstalk signal that cause the impact can be subtracted from the first target signal, so as to achieve the purpose of eliminating the first crosstalk signal and the third crosstalk signal, so that the anti-interference ability of the receiver RF front-end module is improved.

[0137] In practical applications, the weighting coefficient can be determined based on the quotient of the energy value of the first crosstalk signal and the third crosstalk signal at the crosstalk frequency point and the energy value of the amplified first target signal output by the first low-noise amplifier 210 at the crosstalk frequency point, thereby obtaining the interference ratio of the first crosstalk signal and the third crosstalk signal.

[0138] According to the receiver RF front-end module in this example embodiment, on the one hand, by simultaneously setting the first crosstalk extraction module and the third crosstalk extraction module, the first crosstalk signal and the third crosstalk signal in the receiver can be extracted respectively, and the first target signal, the first crosstalk signal and the third crosstalk signal can be summed up through the first transconductance unit to eliminate the first crosstalk signal and the third crosstalk signal in the first target signal, thereby improving the anti-interference capability of the receiver RF front-end and improving the signal quality. In addition, the receiver RF front-end module in the embodiment of the present disclosure is suitable for a multi-channel receiver in which other channels generate crosstalk to the first channel.

[0139] Embodiment 6

[0140] Reference Figure 6 , shows a schematic structural diagram of another receiver RF front-end module according to an exemplary embodiment of the present disclosure. The receiver RF front-end module belongs to the RF front-end module of a dual-channel RF receiver.

[0141] like Figure 6 As shown, the receiver RF front-end module may include a low noise amplifier 410, a crosstalk extraction module 420, a transconductance unit 430 and a mixer 440, wherein the receiver including the receiver RF front-end module includes: a first channel 450 and a second channel, that is, the receiver is a dual-channel RF receiver.

[0142] In this exemplary embodiment, the low noise amplifier 410 is used to receive and amplify the target signal containing the interference signal of the first channel 450; wherein the interference signal includes the crosstalk signal generated by the clock generation module of the second channel. That is, the target signal in the first channel 450 received by the low noise amplifier 410 contains the crosstalk signal from the second channel, and the crosstalk signal is transmitted along with the target signal.

[0143] In practical applications, the crosstalk signal is generated by the clock signal of the clock generation module and its higher harmonic components, and the target signal is a voltage signal.

[0144] In this exemplary embodiment, the crosstalk extraction module 420 is connected to the power supply or ground 460 of the first channel 450. Since the first channel 450 and the second channel share the power supply and ground, the crosstalk extraction module 420 can be used to obtain and output the crosstalk signal. In this exemplary embodiment, by directly connecting the crosstalk extraction module 420 to the inside of the first channel, the crosstalk signal can be directly extracted, thereby improving the accuracy of the extracted signal.

[0145] In practical applications, the crosstalk extraction module 420 can have a variety of structural forms as long as it can achieve the purpose of extracting crosstalk signals. This exemplary embodiment mainly uses the following three methods as examples, and other crosstalk extraction methods that can achieve the same effect also fall within the scope of protection of this exemplary embodiment.

[0146] First, the crosstalk extraction module 420 can be a low noise amplifier with the same structure as the low noise amplifier 410. That is, by setting a low noise amplifier with the same structure as the low noise amplifier 410 to extract the crosstalk signal, the crosstalk signal can be extracted and processed like the low noise amplifier 410, so that a signal identical to the crosstalk signal in the target signal can be obtained.

[0147] Second, the crosstalk extraction module 420 can also be a passive device network. Among them, passive devices are devices that can independently show their external characteristics without relying on the existence of an external power supply. Passive devices mainly include resistors, capacitors, inductors, etc. Their common feature is that they can work when there is a signal without adding a power supply in the circuit. Therefore, a network composed of passive devices can also be used to extract crosstalk signals.

[0148] In this exemplary embodiment, by constructing a load network consistent with the low-noise amplifier 410, the output impedance of the passive device network can be made the same as the output impedance of the low-noise amplifier 410, and the crosstalk signal can be output through the same load network as the low-noise amplifier 410, and the same extraction effect can be achieved, so that the crosstalk signal passing through the passive device network is the same as or similar to the crosstalk signal passing through the low-noise amplifier 410.

[0149] In practical applications, there are many ways to construct a passive device network, which can be achieved through different series and parallel connection methods between resistors, capacitors, and inductors, as long as the output impedance of the passive device network is the same as the output impedance of the low-noise amplifier 410. This exemplary embodiment does not make specific limitations on this.

[0150] The third type, the crosstalk extraction module 420 is also a passive device network. Different from the second type, the passive device network is an AC coupling network, wherein the AC coupling network is coupled by connecting capacitors in series in the line, and the type of capacitors is not limited. The function of AC coupling is to remove the DC component in the signal to achieve the purpose of isolating DC and passing AC.

[0151] In practical applications, crosstalk signals are mostly AC signals. Therefore, this exemplary embodiment can achieve the purpose of extracting crosstalk signals by setting an AC coupling network.

[0152] In this exemplary embodiment, the input end of the transconductance unit 430 is connected to the output end of the low noise amplifier 410 and the output end of the crosstalk extraction module 420, and is used to receive the target signal and the crosstalk signal, and output the target current signal according to the voltage difference between the target signal and the crosstalk signal. The target current signal does not contain the crosstalk signal.

[0153] In practical applications, the function of the transconductance unit 430 is to convert multiple voltage values ​​(such as target signals and crosstalk signals) input at the input end into multiple current values ​​respectively. Its transconductance can apply different values ​​to achieve a weighted function. The converted current forms a differential to eliminate the crosstalk signal, that is, by converting the voltage into current, it is possible to output the target current signal according to the difference in the input voltage values.

[0154] In this exemplary embodiment, the mixer 440 is coupled to the output end of the transconductance unit 430, and is used to receive, perform frequency conversion processing, and output the target current signal. The mixer 440 can convert the input target current signal from one frequency to another frequency, for example, converting a high-frequency target current signal into a low-frequency signal, so that the intermediate frequency amplifier, filter, analog-to-digital converter and other hardware after the RF front end of the receiver can process the signal.

[0155] According to the receiver RF front-end module in this example embodiment, on the one hand, by directly setting up a crosstalk extraction module, the crosstalk signal in the receiver can be extracted, and the crosstalk signal can be processed through a transconductance unit to eliminate the crosstalk signal, thereby achieving the purpose of improving the anti-interference capability of the receiver RF front-end and improving the signal quality. On the other hand, by connecting the crosstalk extraction module to the power supply or ground of the first channel, the crosstalk signal can be directly obtained, thereby improving the accuracy of the crosstalk signal extraction. On the other hand, by connecting the output end of the low-noise amplifier and the output end of the crosstalk extraction module to the transconductance unit respectively, the crosstalk signal in the target signal can be eliminated, thereby achieving the purpose of resisting the interference of the crosstalk signal, while improving the anti-interference capability of the receiver.

[0156] In addition, the receiver RF front-end module in the embodiment of the present disclosure can be based on a zero intermediate frequency structure, which can solve the crosstalk problem while hardly increasing the power consumption and volume of the receiver. Moreover, the receiver RF front-end module is applicable to a dual-channel RF receiver in which one channel generates crosstalk to another channel, and is also applicable to a multi-channel RF receiver in which only one channel generates crosstalk to the first channel.

[0157] Embodiment 7

[0158] In this exemplary embodiment, a receiver is also provided, referring to Figure 7 , shows a schematic diagram of the structure of a receiver according to an exemplary embodiment of the present disclosure. The receiver includes the receiver RF front-end module 710 described in the above embodiments, and also includes a phase-locked loop 720, a transimpedance filter 730 and an analog-to-digital converter 740, wherein: Figure 7 The receiver RF front-end module 710 shown in the figure is the structure in the third embodiment, and the receiver RF front-end modules in other embodiments can be replaced with reference thereto.

[0159] In this exemplary embodiment, the phase-locked loop 720 is coupled to the receiver RF front-end module 710, specifically, coupled to the first mixer 240 of the receiver RF front-end module 710. The phase-locked loop 720 generates a clock signal required for frequency conversion of the RF front-end module 710 based on a reference clock.

[0160] The transimpedance filter 730 is coupled to the output end of the receiver RF front-end module 710. Specifically, the input end of the transimpedance filter 730 is coupled to the output end of the first mixer 240 of the receiver RF front-end module 710. The transimpedance filter 730 converts the current signal output by 240 into a voltage signal, and performs amplification and filtering.

[0161] The analog-to-digital converter 740 is coupled to the output end of the transimpedance filter 730 and is used to convert the analog signal into a digital signal for digital baseband processing and analysis.

[0162] The specific details of the receiver RF front-end module 710 have been described in detail in the aforementioned embodiment part, so they will not be repeated here.

[0163] According to the receiver in this example embodiment, on the one hand, by using the receiver RF front-end module described in the above embodiment, the crosstalk signal in the target signal can be filtered out, so as to improve the anti-interference ability of the receiver and improve the signal quality. On the other hand, the target signal is amplified by a low-noise amplifier, and after the crosstalk signal is eliminated by a transconductance unit, the amplified target signal can be down-converted by a mixer to generate a low-frequency signal, and then the low-frequency signal can be amplified and filtered by a transimpedance filter to generate a baseband signal, and finally the analog signal can be converted into a digital signal by an analog-to-digital converter for digital baseband processing and analysis.

[0164] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary technical means in the art that are not disclosed in the present disclosure. The specification and examples are to be considered as exemplary only, and the true scope and spirit of the present disclosure are indicated by the claims.

[0165] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A receiver radio frequency front-end module, the receiver radio frequency front-end module is arranged in a chip, the chip includes a first clock generation module, the receiver includes a first channel, characterized in that: include: A low noise amplifier, used for receiving and amplifying the target signal containing the interference signal of the first channel; wherein the interference signal comprises a first crosstalk signal generated by the first clock generation module; A first crosstalk extraction module, connected to the first clock generation module, configured to obtain and output the first crosstalk signal; a transconductance unit, whose input end is connected to the output end of the low noise amplifier and the output end of the first crosstalk extraction module, for receiving the target signal and the first crosstalk signal, and outputting a target current signal according to a difference between the target signal and the first crosstalk signal; A mixer, coupled to the output end of the transconductance unit, for receiving and frequency-converting the target current signal; The receiver further comprises at least one second channel, and the interference signal further comprises a second crosstalk signal generated by a second clock generation module from the second channel; The receiver RF front-end module also includes a second crosstalk extraction module, connected to the second clock generation module, and configured to obtain and output the second crosstalk signal; The input end of the transconductance unit is also connected to the output end of the second crosstalk extraction module. The transconductance unit is also used to receive the second crosstalk signal, perform weighted summation on the first crosstalk signal and the second crosstalk signal to obtain a weighted sum value, and output the target current signal according to the difference between the target signal and the weighted sum value.

2. The receiver RF front-end module according to claim 1, characterized in that: The first crosstalk extraction module is a low noise amplifier having the same structure as that of the low noise amplifier.

3. The receiver RF front-end module according to claim 1, characterized in that: The first crosstalk extraction module is a passive device network.

4. The receiver RF front-end module according to claim 3, characterized in that: The output impedance of the passive device network is the same as the output impedance of the low noise amplifier.

5. The receiver RF front-end module according to claim 3, characterized in that: The passive device network is an AC coupling network.

6. A receiver RF front-end module, the receiver comprising a first channel and a second channel, characterized in that: include: A first low noise amplifier, used for receiving and amplifying a first target signal containing a first interference signal of the first channel; wherein the first interference signal comprises a first crosstalk signal generated by a first clock generation module from the second channel; A first crosstalk extraction module, connected to the first clock generation module, configured to obtain and output the first crosstalk signal; a first transconductance unit, whose input end is connected to the output end of the first low noise amplifier and the output end of the first crosstalk extraction module, for receiving the first target signal and the first crosstalk signal, and outputting a first target current signal according to a difference between the first target signal and the first crosstalk signal; A first mixer, coupled to an output end of the first transconductance unit, for receiving, frequency converting and outputting the first target current signal; A second low noise amplifier, used for receiving and amplifying a second target signal containing a second interference signal in the second channel; wherein the second interference signal comprises a second crosstalk signal generated by a second clock generation module from the first channel; A second crosstalk extraction module, connected to the second clock generation module, configured to obtain and output the second crosstalk signal; a second transconductance unit, whose input end is also connected to the output end of the second low noise amplifier and the output end of the second crosstalk extraction module, for receiving the second target signal and the second crosstalk signal, and outputting a second target current signal according to the difference between the second target signal and the second crosstalk signal; The second mixer is coupled to the output end of the second transconductance unit and is used for receiving and frequency converting the second target current signal.

7. The receiver RF front-end module according to claim 6, characterized in that: The first crosstalk extraction module is a low noise amplifier having the same structure as the first low noise amplifier.

8. The receiver RF front-end module according to claim 6, characterized in that: The first crosstalk extraction module is a passive device network.

9. The receiver radio frequency front-end module according to claim 8, characterized in that: The output impedance of the passive device network is the same as the output impedance of the first low noise amplifier.

10. The receiver radio frequency front-end module according to claim 8, characterized in that: The passive device network is an AC coupling network.

11. The receiver radio frequency front-end module according to claim 6, characterized in that: The receiver includes at least one third channel, and the first interference signal also includes a third crosstalk signal generated by a third clock generation module from the third channel; The receiver RF front-end module also includes a third crosstalk extraction module, connected to the third clock generation module, for acquiring and outputting the third crosstalk signal; The input end of the first transconductance unit is also connected to the output end of the third crosstalk extraction module. The first transconductance unit is also used to receive the third crosstalk signal, and perform weighted summation on the first crosstalk signal and the third crosstalk signal to obtain a weighted sum value, and then output the first target current signal according to the difference between the first target signal and the weighted sum value.

12. The receiver radio frequency front-end module according to claim 6, characterized in that: The first crosstalk extraction module is connected to a bias point, a power supply or a ground of the first clock generation module.

13. A receiver radio frequency front-end module, the receiver comprising a first channel and a second channel, characterized in that: include: A low noise amplifier, used for receiving and amplifying a target signal containing an interference signal in the first channel, wherein the interference signal includes a crosstalk signal generated by a clock generation module from the second channel; A crosstalk extraction module, connected to a power supply or a ground of the first channel, for acquiring and outputting the crosstalk signal; wherein the first channel and the second channel share the power supply and the ground; a transconductance unit, whose input end is connected to the output end of the low noise amplifier and the output end of the crosstalk extraction module, for receiving the target signal and the crosstalk signal, and outputting a target current signal according to the difference between the target signal and the crosstalk signal; The mixer is coupled to the output end of the transconductance unit and is used for receiving and frequency converting the target current signal.

14. The receiver radio frequency front-end module according to claim 13, characterized in that: The crosstalk extraction module is a low noise amplifier having the same structure as that of the low noise amplifier.

15. The receiver radio frequency front-end module according to claim 13, characterized in that: The crosstalk extraction module is a passive device network.

16. The receiver radio frequency front-end module according to claim 15, characterized in that: The output impedance of the passive device network is the same as the output impedance of the low noise amplifier.

17. The receiver radio frequency front-end module according to claim 15, characterized in that: The passive device network is an AC coupling network.

18. A receiver, characterized in that: include: A receiver radio frequency front-end module as claimed in any one of claims 1 to 17; a phase-locked loop coupled to the receiver radio frequency front-end module; a transimpedance filter coupled to an output end of the receiver RF front-end module; An analog-to-digital converter is coupled to the output of the transimpedance filter.

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