Antenna system

Abstract

The embodiment of the utility model discloses an antenna system. The antenna system comprises a host end and an antenna end, wherein an output interface of the host end is communicated with an input interface of the antenna end through a cable; the host end comprises a power supply voltage output control module and a radio frequency signal output control module which both output signals of corresponding antenna systems. The antenna end comprises a power supply voltage identification module, an antenna path selection module, an antenna power supply module and two types of antenna paths. The power supply voltage identification module receives the voltage signal and generates a selection signal, and the antenna path selection module gates the corresponding antenna path according to the selection signal and receives and transmits the radio frequency signal. And the antenna power supply module receives the voltage signal and supplies power to the gated antenna path. According to the embodiment of the utility model, the problems of high cost and long debugging period due to the need of corresponding modulation and demodulation chips at the host end and the antenna end in the traditional integrated services digital network mode are solved, the rapid debugging of the multi-channel antenna is realized, and the design of the terminal and antenna accessories is simplified.

Description

TECHNICAL FIELD

[0001] The embodiment of the utility model relates to signal transmission technical field, especially relate to an antenna system. BACKGROUND

[0002] In the current complex communication environment, in order to ensure communication quality, facing the signal transceiving demand of multiple different systems, often need to take the configuration scheme of multiple external antennas, and each antenna corresponds an independent interface.

[0003] The strategy that all necessary signals are transmitted between host and antenna through single cable (i.e. one interface) can greatly simplify the appearance design of equipment and reduce the number of required accessories. In prior art, RF coaxial cable is mainly used to transmit RF signal, and DC power supply based on this is realized by the combination of capacitor (allowing AC to pass while blocking DC) and inductor (allowing DC to pass while blocking AC).

[0004] In prior art, other information is further superimposed on the basis of RF signal and power supply, and additional complex circuit needs to be introduced, and the host end and antenna end need to have corresponding modem chips, which is high in cost and long in debugging period. UTILITY MODEL CONTENT

[0005] The utility model provides a kind of antenna system, by using RF signal of different voltage, simultaneously reach the purpose of selecting specific RF signal and power supply, reduce production cost, shorten debugging length.

[0006] The embodiment of the utility model provides a kind of antenna system, including host end and antenna end, the output interface of the host end is connected with the input interface of the antenna end by a cable;

[0007] The host end includes power supply voltage output control module and RF signal output control module;

[0008] The power supply voltage output control module and the RF signal output control module are connected with the cable by the output interface, and the power supply voltage signal and RF signal corresponding to the same antenna system are output respectively;

[0009] The antenna end includes power supply voltage identification module, antenna passage selection module, antenna power supply module and two kinds of antenna passage of system;

[0010] The power supply voltage identification module is connected with the cable by the input interface, to receive the power supply voltage signal, and generates antenna passage selection signal according to the power supply voltage signal;

[0011] The antenna channel selection module is connected with the power voltage identification module, so as to select the antenna channel of the corresponding antenna system according to the antenna channel selection signal; the antenna channel selection module is also connected with the cable through the input interface, so as to receive the radio frequency signal and transmit the radio frequency signal to the outside through the selected antenna channel of the corresponding antenna system;

[0012] The antenna power supply module is connected with the cable through the input interface, so as to receive the power voltage signal, and is also electrically connected with the antenna channels of the two systems respectively, so as to supply power to the selected antenna channel of the corresponding antenna system.

[0013] Optionally, the power voltage output control module comprises a first voltage stabilizing chip and a second voltage stabilizing chip.

[0014] The first voltage stabilizing chip comprises a first power supply end, a first control signal end and a first power voltage output end, the first power voltage output end is controlled by an enable signal input from the first control signal end, and the voltage of the first power supply end is stabilized as a first power voltage output.

[0015] The second voltage stabilizing chip comprises a second power supply end, a second control signal end and a second power voltage output end, the second power voltage output end is controlled by an enable signal input from the second control signal end, and the voltage of the second power supply end is stabilized as a second power voltage output.

[0016] Optionally, the radio frequency signal output control module comprises a first gating chip, a first radio frequency signal input interface and a second radio frequency signal input interface.

[0017] The first gating chip comprises a gating control end, a first input end, a second input end and an output end.

[0018] In the first gating chip, the first input end is connected with the first radio frequency signal input interface, the second input end is connected with the second radio frequency signal input interface, and the output end is connected with the output interface; the first input end or the second input end is controlled by an enable signal input from the gating control end and is selected with the output end.

[0019] Optionally, the host end further comprises a coupling module, one end of the coupling module is connected with the power voltage output control module, and the other end is connected to a signal line connecting the output end of the first gating chip and the output interface.

[0020] Optionally, the coupling module comprises an inductor and a capacitor.

[0021] One end of the inductor is connected with the power voltage output control module, and the other end is connected to a signal line connecting the output end of the first gating chip and the output interface.

[0022] One end of the capacitor is connected with the output end of the first gating chip, and the other end is connected with the output interface.

[0023] Optionally, the power voltage identification module comprises a comparator; the comparator comprises a reference voltage end, an input end and an output end;

[0024] In the comparator, the input end is connected with the cable through the input interface, and the output end is connected with the antenna path selection module; the output end is controlled by the size relationship between the power voltage signal input by the input end and the reference voltage input by the reference voltage end, and outputs a first level signal or a second level signal.

[0025] Optionally, the antenna path selection module comprises a second gating chip, a first antenna path and a second antenna path; the second gating chip comprises a gating control end, an input end, a first output end and a second output end;

[0026] In the second gating chip, the gating control end is connected with the power voltage identification module, the input end is connected with the cable through the input interface, the first output end is connected with the first antenna path, and the second output end is connected with the second antenna path; the first output end is controlled by the first level signal input by the gating control end and the input end, and the second output end is controlled by the second level signal input by the gating control end and the input end.

[0027] Optionally, the first antenna path and the second antenna path each comprise a first antenna interface and a second antenna interface, and the first antenna interface and the second antenna interface are used for connecting two ends of an antenna;

[0028] The first antenna interface of the first antenna path is connected with the first output end of the second gating chip, the second antenna interface of the second antenna path is connected with the second output end of the second gating chip, and the second antenna interfaces in the first antenna path and the second antenna path are each grounded.

[0029] Optionally, the first antenna interfaces of the first antenna path and the second antenna path are each further connected with the antenna power supply module.

[0030] Optionally, the antenna power supply module comprises a third voltage stabilizing chip.

[0031] The third voltage stabilizing chip comprises a power input end and a power output end, the power input end is connected with the cable through the input interface, and the power output end is connected with at least one antenna channel of a standard; the power output end outputs the power voltage signal input by the power input end after voltage stabilization.

[0032] The utility model embodiment provides a kind of antenna system, including host end and antenna end, the output interface of host end is connected with the input interface of antenna end by a cable, simplify the connection of system, reduce the complexity of installation and maintenance, improve the overall reliability of system simultaneously;Host end includes power voltage output control module and radio frequency signal output control module;Power voltage output control module and radio frequency signal output control module are connected with cable by output interface, respectively output the power voltage signal and radio frequency signal of corresponding same antenna standard, corresponding radio frequency signal and voltage signal;Antenna end includes power voltage identification module, antenna channel selection module, antenna power supply module and two standard antenna channels;Power voltage identification module is connected with cable by input interface, to receive power voltage signal, and generates antenna channel selection signal according to power voltage signal, power voltage identification module can identify power voltage signal, and generates antenna channel selection signal accordingly;Antenna channel selection module is connected with power voltage identification module, to select the antenna channel of corresponding antenna standard according to antenna channel selection signal;Antenna channel selection module is also connected with cable by input interface, to receive radio frequency signal, and is transmitted to outside by the antenna channel of corresponding antenna standard of selection, ensure that radio frequency signal is accurately transmitted to corresponding antenna;Antenna power supply module is connected with cable by input interface, to receive power voltage signal, also electrically connected with two standard antenna channels respectively, to supply power to the antenna channel of corresponding antenna standard of selection, reduce standby power consumption of non-working antenna.The utility model embodiment realizes that the antenna selection information is superimposed on feed and radio frequency signal, reduces system complexity and production cost, shortens debugging length, simplifies the design of terminal and antenna accessory. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 It is a structural schematic diagram of the antenna system provided by the utility model embodiment;

[0034] Figure 2 It is Figure 1 It is the circuit schematic diagram of power voltage output control module in the antenna system shown in the figure;

[0035] Figure 3 It is Figure 1 It is the circuit schematic diagram of radio frequency signal output control module in the antenna system shown in the figure;

[0036] Figure 4 It is Figure 1The circuit principle diagram of the power voltage identification module in the antenna system shown in the figure is as follows:

[0037] Figure 5 is Figure 1 The circuit principle diagram of the antenna path selection module in the antenna system shown in the figure is as follows:

[0038] Figure 6 is Figure 1 The circuit principle diagram of the antenna power supply module in the antenna system shown in the figure is as follows. DETAILED DESCRIPTION

[0039] The utility model will be further explained in detail in combination with the drawings and examples. It can be understood that the specific examples described here are only used to explain the utility model, and not to limit the utility model. In addition, it should be noted that only the parts related to the utility model are shown in the drawings for convenience of description, not all the structures.

[0040] Figure 1 The structure schematic diagram of an antenna system provided by the utility model embodiment is as follows: Figure 1 The antenna system includes a host terminal 100 and an antenna terminal 200, and the output interface 101 of the host terminal 100 is communicated with the input interface 201 of the antenna terminal through a cable; the host terminal 100 includes a central processing unit (not shown in the figure), a power voltage output control module 110 and a radio frequency signal output control module 120; the power voltage output control module 110 and the radio frequency signal output control module 120 are connected with the cable through the output interface 101, and output the power voltage signal and the radio frequency signal corresponding to the same antenna system respectively; the antenna terminal 200 includes a power voltage identification module 210, an antenna path selection module 220, an antenna power supply module 230 and two kinds of antenna paths 240; the power voltage identification module 210 is connected with the cable through the input interface 201 to receive the power voltage signal, and generates an antenna path selection signal according to the power voltage signal; the antenna path selection module 220 is connected with the power voltage identification module 210 to select the antenna path 240 corresponding to the antenna system according to the antenna path selection signal; the antenna path selection module 220 is also connected with the cable through the input interface 201 to receive the radio frequency signal, and transmits externally through the selected antenna path 240 corresponding to the antenna system; the antenna power supply module 230 is connected with the cable through the input interface 201 to receive the power voltage signal, and is also connected with the two kinds of antenna paths 240 respectively to supply power to the selected antenna path 240 corresponding to the antenna system.

[0041] As Figure 1As shown, the working principle of the antenna system is outlined as follows: the central processor in the host end 100 determines the type of the required radio frequency signal output and the corresponding control voltage according to the control signal, sends the voltage control signal to the power voltage output control module 110, and sends the radio frequency control signal to the radio frequency signal output control module 120. Exemplarily, the control signal can be provided by the upper-layer application software. The power voltage output control module 110 outputs the corresponding voltage according to the voltage control signal, and the radio frequency signal output control module 120 outputs the corresponding radio frequency signal according to the radio frequency control signal. Subsequently, the radio frequency signal and its corresponding voltage are modulated, transmitted to the antenna end 200 through the output interface 101 of the host end 100, the connecting cable and the input interface 201 of the antenna end 200. In the antenna end 200, the power voltage recognition module 210 generates the antenna path selection signal according to the received power voltage signal, and sends the signal to the antenna path selection module 220. The antenna path selection module 220 selects and activates the antenna path 240 corresponding to the specific antenna standard according to the received selection signal. Meanwhile, the antenna power supply module 230 is responsible for adjusting the power provided by the host end 100 to the voltage level suitable for the working requirement of the antenna path 240.

[0042] Figure 2 is Figure 1 The circuit diagram of the power voltage output control module in the antenna system is shown. As shown Figure 2 In an optional embodiment, the power voltage output control module 110 includes a first voltage stabilizing chip 111 and a second voltage stabilizing chip 112. The first voltage stabilizing chip 111 includes a first power supply end 1111, a first control signal end 1112 and a first power voltage output end 1113. The first power voltage output end 1113 is controlled by the enable signal inputted by the first control signal end 1112, and stabilizes the voltage of the first power supply end 1111 as the first power voltage output. The second voltage stabilizing chip 112 includes a second power supply end 1121, a second control signal end 1122 and a second power voltage output end 1123. The second power voltage output end 1123 is controlled by the enable signal inputted by the second control signal end 1122, and stabilizes the voltage of the second power supply end 1121 as the second power voltage output.

[0043] As shown Figure 2As shown, the working principle of the power voltage output control module in the antenna system is outlined as follows: the power voltage output control module 110 controls the first voltage stabilizing chip 111 or the second voltage stabilizing chip 112 to work according to the voltage control signal sent by the central processor, and stabilizes the voltage of the first power terminal 1111 as the first power voltage output or the voltage of the second power terminal 1121 as the second power voltage output. Specifically, when the central processor receives the control signal provided by the upper-layer application software, it judges the target antenna system according to the control signal, for example, when the central processor judges that the target antenna system to be controlled currently is the first antenna system, it sends a high-level signal to the first voltage stabilizing chip 111, activates the first voltage stabilizing chip 111, and the first voltage stabilizing chip 111 stabilizes the voltage of the first power terminal 1111 as the first power voltage output. When the central processor judges that the target antenna system to be controlled currently is the second antenna system, it sends a high-level signal to the second voltage stabilizing chip 112, activates the second voltage stabilizing chip 112, and the second voltage stabilizing chip 112 stabilizes the voltage of the first power terminal 1121 as the second power voltage output.

[0044] Figure 3 is Figure 1 The circuit principle diagram of the radio frequency signal output control module in the antenna system is shown. As Figure 3 As shown in an optional embodiment, the radio frequency signal output control module 120 comprises a first gating chip 121, a first radio frequency signal input interface 122 and a second radio frequency signal input interface 123; the first gating chip 121 comprises a gating control terminal 1211, a first input terminal 1212, a second input terminal 1213 and an output terminal 1214; in the first gating chip 121, the first input terminal 1212 is connected with the first radio frequency signal input interface 122, the second input terminal 1213 is connected with the second radio frequency signal input interface 123, and the output terminal 1214 is connected with the output interface 101; the first input terminal 1212 or the second input terminal 1213 is gated with the output terminal 1214 under the control of the enable signal inputted by the gating control terminal 1211.

[0045] The RF signal output control module 120 controls the selection path of the first gating chip 121 based on the RF control signal sent by the central processing unit. Specifically, the gating control terminal 1211 receives the RF control signal, and the gating output terminal 1214 is connected to either the first input terminal 1212 or the second input terminal 1213. When the central processing unit determines that the target antenna type to be controlled is the first antenna type, it sends a first RF control signal to the gating control terminal 1211, causing the gating output terminal 1214 to connect with the first input terminal 1212, thereby outputting the first RF signal input from the first RF signal input interface 122 through the first gating chip 121. Similarly, when the central processing unit determines that the target antenna type to be controlled is the second antenna type, it sends a second RF control signal to the gating control terminal 1211, causing the gating output terminal 1214 to connect with the second input terminal 1213, thereby outputting the second RF signal input from the second RF signal input interface 123 through the first gating chip 121.

[0046] In an optional embodiment, the host terminal 100 further includes a coupling module 130, one end of which is connected to the power supply voltage output control module 110, and the other end is connected to the signal line connecting the output terminal 1214 of the first gating chip 121 and the output interface 101.

[0047] Specifically, the coupling module 130 is connected to the signal line between the power supply voltage output control module 110 and the output terminal 1214 of the first gating chip 121, and is used to couple the DC signal generated by the voltage output control module 110 to the radio frequency signal output by the first gating chip 121 and output it.

[0048] like Figure 3 As shown, in an optional embodiment, the coupling module 130 includes an inductor L1 and a capacitor C307; one end of the inductor L1 is connected to the power supply voltage output control module 110, and the other end is connected to the signal line connecting the output terminal of the first gating chip 121 and the output interface 101; one end of the capacitor C307 is connected to the first gating chip 121, and the other end is connected to the power supply voltage output control module 110 and the output interface 101.

[0049] Specifically, an inductor L1 and a capacitor C307 are configured in the coupling module 130. The inductor L1 in the coupling module is used to conduct DC signals and block AC signals, preventing the radio frequency signal sent by the first gating chip 121 from flowing back into the power supply voltage output control module 110. The capacitor C307 conducts AC signals and blocks DC signals, preventing the voltage signal of the power supply voltage output control module 110 from entering the first gating chip 121.

[0050] Figure 4 yes Figure 1Circuit schematic of the power voltage identification module in the antenna system shown. As Figure 4 As shown in an optional embodiment, the power voltage identification module 210 includes a comparator 211; the comparator 211 includes a reference voltage terminal 2111, an input terminal 2112 and an output terminal 2113; in the comparator 211, the input terminal 2112 is connected with the cable through the input interface 201, and the output terminal 2113 is connected with the antenna path selection module 220; the output terminal 2113 is controlled by the size relationship between the power voltage signal input by the input terminal 2112 and the reference voltage input by the reference voltage terminal 2111, and outputs a first level signal or a second level signal.

[0051] As Figure 4 The working principle of the power voltage identification module is outlined as follows: the power voltage identification module 210 mainly determines the size relationship between the input power voltage signal and a fixed reference voltage through the comparator 211, and sends an antenna path selection signal to the antenna path selection module 220 according to the comparison result. For example, if the voltage input by the input terminal 2112 is lower than the voltage of the reference voltage terminal 2111, the output terminal 2113 sends a low level signal to the antenna path selection module 220, and then selects the antenna path 240 corresponding to the antenna standard of the lower power voltage signal. If the voltage input by the input terminal 2112 is higher than the voltage of the reference voltage terminal 2111, the output terminal 2113 sends a high level signal to the antenna path selection module 220, and then selects the antenna path 240 corresponding to the antenna standard of the higher power voltage signal.

[0052] Figure 5 As Figure 1 Circuit schematic of the antenna path selection module in the antenna system shown. In an optional embodiment, the antenna path selection module 220 includes a second gating chip 221, a first antenna path 241 and a second antenna path 242; the second gating chip 221 includes a gating control terminal 2211, an input terminal 2212, a first output terminal 2213 and a second output terminal 2214; in the second gating chip 221, the gating control terminal 2211 is connected with the power voltage identification module 210, the input terminal 2212 is connected with the cable through the input interface 201, the first output terminal 2213 is connected with the first antenna path 241, and the second output terminal 2214 is connected with the second antenna path 242; the first output terminal 2213 is controlled by the first level signal input by the gating control terminal 2211 and the input terminal 2212, and the second output terminal 2214 is controlled by the second level signal input by the gating control terminal 2211 and the input terminal 2212.

[0053] As Figure 5As shown, the working principle of the antenna path selection module is outlined as follows: when the power voltage identification module 210 outputs a level signal, the second gating chip 221 is inputted with the level signal from the input end 2212, and the gating control end 2211 of the second gating chip 221 will determine to select the corresponding antenna path 240 according to the level signal (first level signal or second level signal) received by the gating control end 2211. If the gating control end 2211 receives the first level signal (for example, the first level signal indicates that the power voltage is higher than the reference voltage), the second gating chip 221 will select the first output end 2213 and the input end 2212 to be gated, that is, the first antenna path 241 is selected to receive or send the first radio frequency signal. If the gating control end 2211 receives the second level signal (indicating that the power voltage is lower than or equal to the reference voltage), the second gating chip 221 will select the second output end 2214 and the input end 2212 to be gated, that is, the second antenna path 242 is selected to receive or send the second radio frequency signal.

[0054] Optionally, the first antenna path 241 and the second antenna path 242 each include a first antenna interface 2411 and a second antenna interface 2412, which are used to connect two ends of the antenna; the first antenna interface 2411 of the first antenna path 241 is connected with the first output end 2213 of the second gating chip 221, and the second antenna interface 2412 of the second antenna path 242 is connected with the second output end 2214 of the second gating chip 221, and the second antenna interface 2412 in the first antenna path 241 and the second antenna path 242 is grounded.

[0055] Specifically, the first antenna path 241 and the second antenna path 242 determine to be connected with the first antenna path 241 or the second antenna path 242 according to the gating signal, and the first antenna path 241 and the second antenna path 242 can be connected with any one of the antenna paths 240 according to the preset gating signal.

[0056] Optionally, the first antenna interface of the first antenna path and the second antenna interface of the second antenna path are also electrically connected with the antenna power supply module.

[0057] Specifically, in addition to transmitting signals, the first antenna interface 2411 of the first antenna path 241 and the second antenna interface 2412 of the second antenna path 242 are also responsible for providing necessary power supply for the antenna.

[0058] Figure 6 is Figure 1 The circuit schematic diagram of the antenna power supply module in the antenna system is shown. As Figure 6As shown, in an optional embodiment, the antenna power supply module 230 comprises a third voltage stabilizing chip 231; the third voltage stabilizing chip 231 comprises a power input end 2311 and a power output end 2312, the power input end 2311 is connected with the cable through the input interface 201, and the power output end 2312 is connected with the antenna channel 240 of at least one type; the power output end 2312 outputs the voltage signal inputted by the power input end 2311 after voltage stabilization.

[0059] Specifically, since the antenna channels 240 of different types need different power supply requirements, for example, when an amplification circuit is arranged in the antenna, the amplification circuit needs to be powered. At this time, the third voltage stabilizing chip 231 arranged in the antenna power supply module 230 stabilizes the voltage inputted by the power input end 2311 to a voltage suitable for the working of the amplification circuit in the antenna channel 240, and then outputs the voltage to the antenna channel 240 through the power output end 2312.

[0060] It is noted that the above are only preferred embodiments of the present application and the technical principles applied. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, and those skilled in the art can make various obvious changes, re-adjustments, mutual combinations and substitutions without departing from the protection scope of the present application. Therefore, although the present application has been described in more detail through the above embodiments, the present application is not limited to the above embodiments, and more other equivalent embodiments can be included without departing from the concept of the present application, and the scope of the present application is determined by the appended claims.

Claims

1. An antenna system, characterized by The host end and the antenna end are connected through a cable; The host end comprises a power voltage output control module and a radio frequency signal output control module; The power voltage output control module and the radio frequency signal output control module are connected with the cable through the output interface and output power voltage signals and radio frequency signals of the same antenna system respectively; The antenna end comprises a power voltage identification module, an antenna path selection module, an antenna power supply module and two kinds of antenna paths; The power voltage identification module is connected with the cable through the input interface to receive the power voltage signals and generate antenna path selection signals according to the power voltage signals; The antenna path selection module is connected with the power voltage identification module to select the antenna path of the corresponding antenna system according to the antenna path selection signals and is also connected with the cable through the input interface to receive the radio frequency signals and transmit them through the selected antenna path of the corresponding antenna system; The antenna power supply module is connected with the cable through the input interface to receive the power voltage signals and is also electrically connected with the two kinds of antenna paths to supply power to the selected antenna path of the corresponding antenna system.

2. The antenna system of claim 1, wherein, The power voltage output control module comprises a first voltage stabilizing chip and a second voltage stabilizing chip; The first voltage stabilizing chip comprises a first power supply end, a first control signal end and a first power voltage output end, the first power voltage output end is controlled by an enable signal input from the first control signal end to stabilize the voltage of the first power supply end as a first power voltage output; The second voltage stabilizing chip comprises a second power supply end, a second control signal end and a second power voltage output end, the second power voltage output end is controlled by an enable signal input from the second control signal end to stabilize the voltage of the second power supply end as a second power voltage output.

3. The antenna system of claim 1, wherein, The radio frequency signal output control module comprises a first gating chip, a first radio frequency signal input interface and a second radio frequency signal input interface; The first gating chip comprises a gating control end, a first input end, a second input end and an output end; In the first gating chip, the first input end is connected with the first radio frequency signal input interface, the second input end is connected with the second radio frequency signal input interface and the output end is connected with the output interface; the first input end or the second input end is controlled by an enable signal input from the gating control end to select the output end.

4. The antenna system of claim 3, wherein, The host end further comprises a coupling module, one end of the coupling module is connected with the power voltage output control module and the other end is connected on a signal line connecting the output end of the first gating chip and the output interface.

5. The antenna system of claim 4, wherein, The coupling module comprises an inductor and a capacitor; One end of the inductor is connected with the power voltage output control module and the other end is connected on the signal line connecting the output end of the first gating chip and the output interface; One end of the capacitor is connected with the output end of the first gating chip and the other end is connected with the output interface.

6. The antenna system of claim 1, wherein, The power supply voltage identification module comprises a comparator; the comparator comprises a reference voltage end, an input end and an output end; In the comparator, the input end is connected with the cable through the input interface, and the output end is connected with the antenna path selection module; the output end is controlled by the size relationship between the power supply voltage signal input by the input end and the reference voltage input by the reference voltage end, and outputs a first level signal or a second level signal.

7. The antenna system of claim 1, wherein, The antenna path selection module comprises a second gating chip, a first antenna path and a second antenna path; the second gating chip comprises a gating control end, an input end, a first output end and a second output end; In the second gating chip, the gating control end is connected with the power supply voltage identification module, the input end is connected with the cable through the input interface, the first output end is connected with the first antenna path, and the second output end is connected with the second antenna path; The first output end is controlled by the first level signal input by the gating control end and the gating of the input end, and the second output end is controlled by the second level signal input by the gating control end and the gating of the input end.

8. The antenna system of claim 7, wherein, The first antenna path and the second antenna path each comprise a first antenna interface and a second antenna interface, and the first antenna interface and the second antenna interface are used for connecting two ends of an antenna; The first antenna interface of the first antenna path is connected with the first output end of the second gating chip, the second antenna interface of the second antenna path is connected with the second output end of the second gating chip, and the second antenna interface in the first antenna path and the second antenna path is grounded.

9. The antenna system of claim 8, wherein, The first antenna interface of the first antenna path and the first antenna interface of the second antenna path are each electrically connected with the antenna power supply module.

10. The antenna system of claim 1, wherein, The antenna power supply module comprises a third voltage stabilizing chip; The third voltage stabilizing chip comprises a power supply input end and a power supply output end, the power supply input end is connected with the cable through the input interface, and the power supply output end is connected with at least one type of antenna path; the power supply output end stabilizes and outputs the power supply voltage signal input by the power supply input end.

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