Radio frequency module and electronic equipment

Abstract

The invention relates to a radio frequency module and electronic equipment. The radio frequency module comprises a target antenna, a satellite short message radio frequency receiving link, a satellite short message radio frequency transmitting link and a combined transceiving link; wherein the satellite short message radio frequency receiving link, the satellite short message radio frequency transmitting link and the combined transceiving link are all connected with the target antenna; the combined transceiving link comprises a combined global navigation satellite system (GNSS) radio frequency transceiving link and a radio frequency transceiving link of a target frequency band. The radio frequency module can support receiving and transmitting of Beidou short messages.

Description

Technical Field

[0001] The present application relates to the field of wireless communication technology, and in particular to a radio frequency module and an electronic device. Background Art

[0002] The application of Beidou satellites has become more and more widespread, and many electronic devices support the sending and receiving of Beidou short messages.

[0003] How to design a radio frequency module that can support Beidou short message transmission and reception is a hot issue at present. Summary of the invention

[0004] Based on this, it is necessary to provide a radio frequency module and electronic equipment that can support the sending and receiving of Beidou short messages.

[0005] In a first aspect, a radio frequency module is provided, the radio frequency module comprising: a target antenna, a satellite short message radio frequency receiving link, a satellite short message radio frequency transmitting link, and a combined transceiver link;

[0006] Among them, the satellite short message RF receiving link, the satellite short message RF transmitting link and the combined transceiver link are all connected to the target antenna; the combined transceiver link includes a combined global navigation satellite system GNSS RF transceiver link and a RF transceiver link of the target frequency band.

[0007] In one embodiment, the target antenna includes an antenna, and the radio frequency module also includes a first selection switch; the first end of the first selection switch is connected to the target antenna, and the second end of the first selection switch is connected to the satellite short message radio frequency receiving link, the satellite short message radio frequency transmitting link and the combined transceiver link; the first selection switch is used to select one of the satellite short message radio frequency receiving link, the satellite short message radio frequency transmitting link and the combined transceiver link.

[0008] In one embodiment, the first gating switch is a single-pole N-throw switch SPNT, where N is a positive integer greater than or equal to 4; or, the first gating switch is a single-pole 3-throw switch SP3T.

[0009] In one of the embodiments, the target antenna includes a first antenna, a second antenna, and a third antenna;

[0010] Among them, the first antenna is connected to the satellite short message radio frequency receiving link; the second antenna is connected to the satellite short message radio frequency transmitting link; and the third antenna is connected to the combined transceiver link.

[0011] In one of the embodiments, the target frequency band is a WIFI frequency band, a Bluetooth frequency band, or a cellular medium or high frequency band.

[0012] In one embodiment, the satellite short message RF transmission link includes a power amplifier and a first filter; wherein the input end of the first filter is connected to the RF chip, the output end of the first filter is connected to the input end of the power amplifier, and the output end of the power amplifier is connected to the target antenna.

[0013] In one embodiment, the satellite short message RF receiving link includes a second filter, a first low noise amplifier and a third filter; wherein the input end of the second filter is connected to the target antenna, the output end of the second filter is connected to the input end of the first low noise amplifier, the output end of the first low noise amplifier is connected to the input end of the third filter, and the output end of the third filter is connected to the RF chip.

[0014] In one of the embodiments, the combined transceiver link further includes a combiner; one end of the combiner is connected to the target antenna, and the other end of the combiner is connected to the GNSS RF transceiver link and the RF transceiver link of the target frequency band.

[0015] In one embodiment, the GNSS RF transceiver link includes a fourth filter, a second low-noise amplifier, a power divider and a positioning circuit; wherein the first end of the fourth filter is connected to the combiner, the second end of the fourth filter is connected to the first end of the second low-noise amplifier, the second end of the second low-noise amplifier is connected to the first end of the power divider, and the second end of the power divider is connected to the positioning circuit and the RF chip.

[0016] In one of the embodiments, the GNSS radio frequency transceiver link further includes a second gating switch;

[0017] The first end of the second selection switch is connected to the second end of the second low noise amplifier, and the second end of the second selection switch is connected to the ground and the first end of the power divider.

[0018] In a second aspect, an electronic device is provided, which includes the radio frequency module as described in the first aspect.

[0019] An embodiment of the present application provides a radio frequency module and an electronic device, wherein the radio frequency module includes a target antenna, a satellite short message radio frequency receiving link, a satellite short message radio frequency transmitting link, and a combined transceiver link; wherein the satellite short message radio frequency receiving link, the satellite short message radio frequency transmitting link, and the combined transceiver link are all connected to the target antenna; the combined transceiver link includes a combined GNSS radio frequency transceiver link and a radio frequency transceiver link of a target frequency band, thereby providing a radio frequency module that can support Beidou short message transceiver. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 A schematic diagram of a radio frequency module provided by an embodiment;

[0022] Figure 2 A schematic diagram of a radio frequency module provided in another embodiment;

[0023] Figure 3 A schematic diagram of a radio frequency module provided in another embodiment;

[0024] Figure 4 A schematic diagram of a satellite short message radio frequency transmission link provided by an embodiment;

[0025] Figure 5 A schematic diagram of a satellite short message radio frequency receiving link provided by an embodiment;

[0026] Figure 6 A schematic diagram of a combined transceiver link provided by an embodiment;

[0027] Figure 7 A schematic diagram of a GNSS radio frequency transceiver link provided by an embodiment;

[0028] Figure 8 A schematic diagram of a GNSS radio frequency transceiver link provided by another embodiment;

[0029] Fig. 9 A schematic diagram of a GNSS radio frequency transceiver link provided by another embodiment;

[0030] Fig.10 A schematic diagram of a radio frequency module provided in another embodiment;

[0031] Fig.11 A schematic diagram of a radio frequency module provided in another embodiment;

[0032] Fig.12 A schematic diagram of a radio frequency module provided in another embodiment. DETAILED DESCRIPTION

[0033] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0035] It is understood that the terms "first", "second", etc. used in this application may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish a first element from another element. For example, without departing from the scope of this application, a first resistor may be referred to as a second resistor, and similarly, a second resistor may be referred to as a first resistor. Both the first resistor and the second resistor are resistors, but they are not the same resistor.

[0036] It can be understood that the “connection” in the following embodiments should be understood as “electrical connection”, “communication connection”, etc. if the connected circuits, modules, units, etc. have electrical signals or data transmission between each other.

[0037] It is understood that "at least one" means one or more, and "a plurality" means two or more. When used herein, the singular forms "one", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, steps, operations, components, parts, or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof. At the same time, the term "and / or" used in this specification includes any and all combinations of the relevant listed items.

[0038] The Beidou satellite navigation system has no signal blind spots in China. When conventional communication means fail, the Beidou satellite navigation system can still be relied on to maintain contact with the outside world. The satellites in the Beidou satellite navigation system include positioning satellites and short message satellites, among which the short message satellites have the Beidou short message communication function. Beidou short message communication has attracted widespread attention and promotion because it is not restricted by time, region, terrain and weather, especially in emergency communications.

[0039] The embodiment of the present application provides a radio frequency module, which can support the sending and receiving of Beidou short messages. The radio frequency module can be set in an electronic device, which can be a mobile phone, a tablet computer, a wearable device, etc., wherein the wearable device includes but is not limited to a smart watch, an electronic blood pressure monitor, a smart bracelet, a smart helmet, smart clothing, smart glasses, headphones, speakers, bracelets, rings, watch straps, crutches, smart backpacks, anti-lost devices, finders, pet supplies, livestock supplies, etc.

[0040] Please refer to Figure 1 , which shows a schematic diagram of a radio frequency module provided in an embodiment of the present application, such as Figure 1 As shown, the radio frequency module includes a target antenna 101 , a satellite short message radio frequency receiving link 102 , a satellite short message radio frequency transmitting link 103 and a combined transceiver link 104 .

[0041] Among them, the satellite short message RF receiving link 102, the satellite short message RF transmitting link 103 and the combined transceiver link 104 are all connected to the target antenna 101. The combined transceiver link 104 includes a combined GNSS (Global Navigation Satellite System) RF transceiver link 1041 and a RF transceiver link 1042 of the target frequency band.

[0042] Please continue to refer to Figure 1 In an optional embodiment of the present application, the RF module may also include a RF chip 105, and the satellite short message RF receiving link 102, the satellite short message RF transmitting link 103 and the combined transceiver link 104 are all connected to the RF chip 105.

[0043] In an optional embodiment of the present application, the radio frequency chip 105 may be connected to the baseband circuit.

[0044] In an optional embodiment of the present application, the satellite short message RF receiving link 102 is used to receive satellite short messages. Optionally, the satellite short message can be a Beidou short message. The satellite short message RF receiving link 102 can operate in the S band. Optionally, the satellite short message RF receiving link 102 can operate within a frequency range of 2491.75MHz±8.16MHz.

[0045] In an optional embodiment of the present application, the satellite short message RF transmission link 103 is used to transmit satellite short messages. Optionally, the satellite short message can be a Beidou short message. The satellite short message RF transmission link 103 can operate in the L band. Optionally, the satellite short message RF transmission link 103 can operate within the frequency range of 1614.26MHz±4.08MHz--1618.34MHz±4.08MHz.

[0046] In an optional embodiment of the present application, the GNSS RF transceiver link 1041 may include a global positioning system (GPS) RF transceiver link, a Galileo satellite navigation system (Galileosatellite navigation system) RF transceiver link, a GLONASS (Global Navigation Satellite System) RF transceiver link or a Beidou Navigation Satellite System (BDS) RF transceiver link.

[0047] In an optional embodiment of the present application, the signal received by the GNSS radio frequency transceiver link 1041 can be used for positioning, and can be used for frequency offset estimation during the satellite short message transmission and reception process.

[0048] In an optional embodiment of the present application, the RF transceiver link 1042 of the target frequency band may include a RF transceiver link of a WIFI frequency band, a RF transceiver link of a Bluetooth frequency band, or a RF transceiver link of a cellular medium or high frequency band, and the present application does not specifically limit this.

[0049] Please refer to Figure 2 ,like Figure 2 As shown, in a possible implementation, the target antenna 101 may include one antenna.

[0050] In this implementation, the radio frequency module may further include a first selection switch 106, wherein a first end of the first selection switch 106 is connected to the target antenna 101, and a second end of the first selection switch 106 is connected to the satellite short message radio frequency receiving link 102, the satellite short message radio frequency transmitting link 103, and the combined transceiver link 104. The first selection switch 106 is used to select one of the satellite short message radio frequency receiving link 102, the satellite short message radio frequency transmitting link 103, and the combined transceiver link 104.

[0051] In an optional embodiment of the present application, the first selection switch 106 can be connected to the RF chip 105 and can work under the control of the RF chip 105, that is, the first selection switch 106 can select one of the satellite short message RF receiving link 102, the satellite short message RF transmitting link 103 and the combined transceiver link 104 under the control of the RF chip 105. For example, when Beidou short message reception is required, the first selection switch 106 can select the satellite short message RF receiving link 102 under the control of the RF chip 105, and when Beidou short message transmission is required, the first selection switch 106 can select the satellite short message RF transmitting link 103 under the control of the RF chip 105.

[0052] In an optional embodiment of the present application, the first selection switch 106 may be a single-pole N-throw switch SPNT, where N is a positive integer greater than or equal to 4; or, the first selection switch may be a single-pole 3-throw switch SP3T.

[0053] In an optional embodiment of the present application, the isolation between different ports of the first selection switch 106 needs to meet certain requirements to avoid mutual coupling interference between different links.

[0054] In such Figure 2 In the implementation shown, only one antenna may be used to transmit and receive satellite short messages (eg, Beidou short messages), thereby reducing costs and, at the same time, reducing interference.

[0055] Please refer to Figure 3 ,like Figure 3 As shown, in a possible implementation, the target antenna 101 may include a first antenna 1011 , a second antenna 1012 , and a third antenna 1013 .

[0056] The first antenna 1011 is connected to the satellite short message radio frequency receiving link 102 ; the second antenna 1012 is connected to the satellite short message radio frequency transmitting link 103 ; and the third antenna 1013 is connected to the combined transceiver link 104 .

[0057] Since different RF links use different antennas, a single antenna needs to support a relatively narrow frequency range, which can improve antenna efficiency. At the same time, using different antennas for different RF links can also help reduce conduction losses.

[0058] In an optional embodiment of the present application, a test socket may be provided between the satellite short message RF receiving link 102, the satellite short message RF transmitting link 103, the combined transceiver link 104 and the target antenna 101, and the test socket is used to implement testing of the antenna module.

[0059] In the case where the target antenna 101 includes one antenna, one test socket may be provided, and the one test socket is provided between the first selection switch 106 and the target antenna 101 .

[0060] When the target antenna 101 includes a first antenna 1011, a second antenna 1012 and a third antenna 1013, three test sockets can be set up, namely a first test socket, a second test socket and a third test socket, wherein the first test socket is set between the first antenna 1011 and the satellite short message RF receiving link 102, the second test socket is set between the second antenna 1012 and the satellite short message RF transmitting link 103, and the third test socket is set between the third antenna 1013 and the combined transceiver link 104.

[0061] Please refer to Figure 4 In an optional embodiment of the present application, the satellite short message RF transmission link 103 may include a power amplifier 1031 and a first filter 1032. It should be noted that in actual implementation, the satellite short message RF transmission link 103 may include other components (such as a switch element, etc.) in addition to the power amplifier 1031 and the first filter 1032, which is not specifically limited in the embodiment of the present application.

[0062] The input end of the first filter 1032 is connected to the RF chip 105 , the output end of the first filter 1032 is connected to the input end of the power amplifier 1031 , and the output end of the power amplifier 1031 is connected to the target antenna 101 .

[0063] It should be pointed out that in Figure 2 In the implementation shown, the target antenna 101 includes an antenna, and the satellite short message RF receiving link 102, the satellite short message RF transmitting link 103 and the combined transceiver link 104 can be connected to the target antenna 101 through the first selection switch 106. In this case, the output end of the power amplifier 1031 is connected to the target antenna 101 through the first selection switch 106.

[0064] like Figure 4 As shown, the power amplifier 1031 may include a multi-stage amplification circuit 10311, an enabling circuit 10312, and the like.

[0065] One end of the multi-stage amplifier circuit 10311 is connected to the RF input pin 6, and the other end is connected to the RF output pin 12. The first filter 1032 is connected to the power amplifier 1031 through the RF input pin 6, and the target antenna 101 is connected to the power amplifier 1031 through the RF output pin 12.

[0066] The enabling circuit 10312 is connected to the enabling pin 1 and the enabling pin 4 . The RF chip 105 can input an enabling signal to the enabling circuit 10312 by using the pin 1 and the enabling pin 4 to enable the power amplifier 1031 .

[0067] In addition, the power amplifier 1031 may further include a power supply pin 9 and a power supply pin 10 , and an external power supply circuit (such as a power management chip) may supply power to the power amplifier 1031 through the power supply pin 9 and the power supply pin 10 .

[0068] In addition, the power amplifier 1031 may further include a power detection pin 7 , and the RF chip 105 may perform power detection through the power detection pin 7 , and adjust the operating parameters of the power amplifier 1031 according to the result of the power detection.

[0069] Please refer to Figure 5 In an optional embodiment of the present application, the satellite short message RF receiving link 102 may include a second filter 1021, a first low noise amplifier 1022, and a third filter 1023. It should be noted that in actual implementation, the satellite short message RF receiving link 102 may include other components (such as switch elements, etc.) in addition to the second filter 1021, the first low noise amplifier 1022, and the third filter 1023, which is not specifically limited in the embodiment of the present application.

[0070] Among them, the input end of the second filter 1021 is connected to the target antenna 101, the output end of the second filter 1021 is connected to the input end of the first low noise amplifier 1022, the output end of the first low noise amplifier 1022 is connected to the input end of the third filter 1023, and the output end of the third filter 1023 is connected to the RF chip 105.

[0071] It should be pointed out that in Figure 2 In the implementation shown, the target antenna 101 includes an antenna, and the satellite short message RF receiving link 102, the satellite short message RF transmitting link 103 and the combined transceiver link 104 can be connected to the target antenna 101 through the first selection switch 106. In this case, the input end of the second filter 1021 is connected to the target antenna 101 through the first selection switch 106.

[0072] In an optional embodiment of the present application, the first low noise amplifier 1022 may include an enable pin, and the RF chip 105 may input an enable signal to the first low noise amplifier 1022 through the enable pin to enable the first low noise amplifier 1022 .

[0073] Please refer to Figure 6In an optional embodiment of the present application, the combiner transceiver link 104 may also include a combiner 1043, wherein one end of the combiner 1043 is connected to the target antenna 101, and the other end of the combiner 1043 is connected to the GNSS RF transceiver link 1041 and the RF transceiver link 1042 of the target frequency band.

[0074] It should be pointed out that in Figure 2 In the implementation shown, the target antenna 101 includes an antenna, and the satellite short message RF receiving link 102, the satellite short message RF transmitting link 103 and the combined transceiver link 104 can be connected to the target antenna 101 through the first selection switch 106. In this case, one end of the combiner 1043 is connected to the target antenna 101 through the first selection switch 106.

[0075] Please refer to Figure 7 In an optional embodiment of the present application, the GNSS RF transceiver link 1041 may include a fourth filter 10411, a second low noise amplifier 10412, a power divider 10413, and a positioning circuit 10414. It should be noted that in actual implementation, the GNSS RF transceiver link 1041 may include other components (such as switch elements, etc.) in addition to the fourth filter 10411, the second low noise amplifier 10412, the power divider 10413, and the positioning circuit 10414, which is not specifically limited in the present embodiment.

[0076] Among them, the first end of the fourth filter 10411 is connected to the combiner 1043, the second end of the fourth filter 10411 is connected to the first end of the second low noise amplifier 10412, the second end of the second low noise amplifier 10412 is connected to the first end of the power divider 10413, and the second end of the power divider 10413 is connected to the positioning circuit 10414 and the RF chip 105.

[0077] In an optional embodiment of the present application, the power divider 10413 outputs one signal to the positioning circuit 10414 for positioning, and the power divider 10413 outputs another signal to the RF chip 105 for the RF chip 105 to perform frequency deviation estimation during the satellite short message reception and transmission process.

[0078] In an optional embodiment of the present application, the fourth filter 10411 may be a surface acoustic wave filter (SAW).

[0079] In an optional embodiment of the present application, the second low noise amplifier 10412 may include an enable pin, and the RF chip 105 may input an enable signal to the second low noise amplifier 10412 through the enable pin to enable the second low noise amplifier 10412 .

[0080] Please refer to Figure 8 ,like Figure 8 As shown, the GNSS RF transceiver link 1041 may further include a second selection switch 10415 . A first end of the second selection switch 10415 is connected to a second end of the second low noise amplifier 10412 , and a second end of the second selection switch 10415 is connected to ground and a first end of the power divider 10413 .

[0081] In an optional embodiment of the present application, the second selection switch 10415 can turn on the path between the second low noise amplifier 10412 and the power divider 10413, thereby turning on the GNSS RF transceiver link 1041. In addition, the second selection switch 10415 can also turn on the second low noise amplifier 10412 and the ground, so that the GNSS RF transceiver link 1041 can be turned off.

[0082] In an optional embodiment of the present application, the second selection switch 10415 may be connected to the RF chip 105 and may operate under the control of the RF chip 105 .

[0083] In an optional embodiment of the present application, during the operation of the satellite short message RF receiving link 102 or the satellite short message RF transmitting link 103, the second selection switch 10415 can connect the second low noise amplifier 10412 to the ground, thereby shutting down the GNSS RF transceiver link 1041. In this way, it is possible to avoid failure of the second low noise amplifier 10412 due to the coupling effect of the satellite short message RF receiving link 102 or the satellite short message RF transmitting link 103.

[0084] Please refer to Fig. 9 ,like Fig. 9 As shown, the GNSS RF transceiver link 1041 may further include a third low noise amplifier 10416 , wherein the third low noise amplifier 10416 may be disposed between the power divider 10413 and the RF chip 105 .

[0085] Similar to the above, in an optional embodiment of the present application, the third low noise amplifier 10416 may include an enable pin, and the RF chip 105 may input an enable signal to the third low noise amplifier 10416 through the enable pin to enable the third low noise amplifier 10416 .

[0086] Please refer to Fig.10 , which shows a schematic diagram of an exemplary radio frequency module, such as Fig.10 As shown, the radio frequency module includes a target antenna 101, the target antenna 101 is connected to a test socket Z, the test socket Z is connected to a first selection switch 106, wherein the first selection switch 106 is SP4T.

[0087] The first selection switch 106 is connected to the power amplifier 1031 , the power amplifier 1031 is connected to the first filter 1032 , and the first filter 1032 is connected to the RF chip 105 .

[0088] The first selection switch 106 is connected to the second filter 1021 , the second filter 1021 is connected to the first low noise amplifier 1022 , the first low noise amplifier 1022 is connected to the third filter 1023 , and the third filter 1023 is connected to the RF chip 105 .

[0089] The first selection switch 106 is connected to the combiner 1043, the combiner 1043 is connected to the WIFI RF transceiver link 1042, the combiner 1043 is also connected to the fourth filter 10411, the fourth filter 10411 is connected to the second low noise amplifier 10412, the second low noise amplifier 10412 is connected to the second selection switch 10415, the second selection switch 10415 is connected to the ground and the power divider 10413, the power divider 10413 is connected to the positioning circuit 10414 and the third low noise amplifier 10416, and the third low noise amplifier 10416 is connected to the RF chip 105.

[0090] Please refer to Fig.11 , which shows a schematic diagram of an exemplary radio frequency module, such as Fig.11 As shown, the radio frequency module includes a target antenna 101, the target antenna 101 is connected to a test socket Z, the test socket Z is connected to a first selection switch 106, wherein the first selection switch 106 is SP4T.

[0091] The first selection switch 106 is connected to the power amplifier 1031 , the power amplifier 1031 is connected to the first filter 1032 , and the first filter 1032 is connected to the RF chip 105 .

[0092] The first selection switch 106 is connected to the second filter 1021 , the second filter 1021 is connected to the first low noise amplifier 1022 , the first low noise amplifier 1022 is connected to the third filter 1023 , and the third filter 1023 is connected to the RF chip 105 .

[0093] The first selection switch 106 is connected to the combiner 1043, the combiner 1043 is connected to the cellular medium and high frequency RF transceiver link 1042, the combiner 1043 is also connected to the fourth filter 10411, the fourth filter 10411 is connected to the second low noise amplifier 10412, the second low noise amplifier 10412 is connected to the second selection switch 10415, the second selection switch 10415 is connected to the ground and the power divider 10413, the power divider 10413 is connected to the positioning circuit 10414 and the third low noise amplifier 10416, and the third low noise amplifier 10416 is connected to the RF chip 105.

[0094] Please refer to Fig.12 , which shows a schematic diagram of an exemplary radio frequency module, such as Fig.12 As shown, the radio frequency module includes a first antenna 1011 , a second antenna 1012 , and a third antenna 1013 .

[0095] The second antenna 1012 is connected to the power amplifier 1031 through a test socket, the power amplifier 1031 is connected to the first filter 1032 , and the first filter 1032 is connected to the RF chip 105 .

[0096] The first antenna 1011 is connected to the second filter 1021 through a test socket, the second filter 1021 is connected to the first low noise amplifier 1022, the first low noise amplifier 1022 is connected to the third filter 1023, and the third filter 1023 is connected to the RF chip 105.

[0097] The third antenna 1013 is connected to the combiner 1043 through the test socket, the combiner 1043 is connected to the RF transceiver link 1042 of the target frequency band, the combiner 1043 is also connected to the fourth filter 10411, the fourth filter 10411 is connected to the second low noise amplifier 10412, the second low noise amplifier 10412 is connected to the second selection switch 10415, the second selection switch 10415 is connected to the ground and the power divider 10413, the power divider 10413 is connected to the positioning circuit 10414 and the third low noise amplifier 10416, and the third low noise amplifier 10416 is connected to the RF chip 105.

[0098] The embodiment of the present application also provides an electronic device, which includes the radio frequency module provided in the above embodiment. As described above, the electronic device can be a mobile phone, a tablet computer, a wearable device, etc., wherein the wearable device includes but is not limited to a smart watch, an electronic blood pressure monitor, a smart bracelet, a smart helmet, smart clothing, smart glasses, headphones, speakers, bracelets, rings, watch straps, crutches, smart backpacks, anti-lost devices, finders, pet supplies, livestock supplies, etc.

[0099] In the description of this specification, the description with reference to the terms "some embodiments", "other embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic description of the above terms does not necessarily refer to the same embodiment or example.

[0100] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0101] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A radio frequency module, characterized in that: The radio frequency module includes: a target antenna, a satellite short message radio frequency receiving link, a satellite short message radio frequency transmitting link and a combined transceiver link; Wherein, the satellite short message radio frequency receiving link, the satellite short message radio frequency transmitting link and the combined transceiver link are all connected to the target antenna; The combined transceiver link includes a combined global navigation satellite system GNSS radio frequency transceiver link and a radio frequency transceiver link of a target frequency band.

2. The radio frequency module according to claim 1, characterized in that: The target antenna includes an antenna, and the radio frequency module also includes a first gating switch; a first end of the first gating switch is connected to the target antenna, and a second end of the first gating switch is connected to the satellite short message radio frequency receiving link, the satellite short message radio frequency transmitting link, and the combined transceiver link; The first selection switch is used to select one of the satellite short message radio frequency receiving link, the satellite short message radio frequency transmitting link and the combined transceiver link.

3. The radio frequency module according to claim 2, characterized in that: The first selection switch is a single-pole N-throw switch SPNT, where N is a positive integer greater than or equal to 4; or, the first selection switch is a single-pole 3-throw switch SP3T.

4. The radio frequency module according to claim 1, characterized in that: The target antenna includes a first antenna, a second antenna and a third antenna; Among them, the first antenna is connected to the satellite short message radio frequency receiving link; the second antenna is connected to the satellite short message radio frequency transmitting link; and the third antenna is connected to the combined transceiver link.

5. The radio frequency module according to any one of claims 1 to 4, characterized in that: The target frequency band is a WIFI frequency band, a Bluetooth frequency band or a cellular medium or high frequency band.

6. The radio frequency module according to any one of claims 1 to 4, characterized in that: The satellite short message radio frequency transmission link includes a power amplifier and a first filter; The input end of the first filter is connected to the radio frequency chip, the output end of the first filter is connected to the input end of the power amplifier, and the output end of the power amplifier is connected to the target antenna.

7. The radio frequency module according to any one of claims 1 to 4, characterized in that: The satellite short message radio frequency receiving link comprises a second filter, a first low noise amplifier and a third filter; Among them, the input end of the second filter is connected to the target antenna, the output end of the second filter is connected to the input end of the first low-noise amplifier, the output end of the first low-noise amplifier is connected to the input end of the third filter, and the output end of the third filter is connected to the RF chip.

8. The radio frequency module according to any one of claims 1 to 4, characterized in that: The combined transceiver link also includes a combiner; One end of the combiner is connected to the target antenna, and the other end of the combiner is connected to the GNSS radio frequency transceiver link and the radio frequency transceiver link of the target frequency band.

9. The radio frequency module according to claim 8, characterized in that: The GNSS radio frequency transceiver link includes a fourth filter, a second low noise amplifier, a power divider and a positioning circuit; Among them, the first end of the fourth filter is connected to the combiner, the second end of the fourth filter is connected to the first end of the second low noise amplifier, the second end of the second low noise amplifier is connected to the first end of the power divider, and the second end of the power divider is connected to the positioning circuit and the RF chip.

10. The radio frequency module according to claim 9, characterized in that: The GNSS radio frequency transceiver link also includes a second gating switch; The first end of the second selection switch is connected to the second end of the second low noise amplifier, and the second end of the second selection switch is connected to the ground and the first end of the power divider.

11. An electronic device, characterized in that: The electronic device comprises the radio frequency module described in any one of claims 1 to 10.

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