Antenna system based on multiple antenna paths

Abstract

The embodiment of the utility model discloses an antenna system based on multiple antenna paths. The antenna system comprises a host end and an antenna end, and the host end is communicated with the antenna end through a cable. The host outputs a power supply voltage signal and a radio frequency signal; the antenna end receives a power supply voltage signal and generates a voltage comparison signal, the comparison signal arrangement module generates an antenna path selection signal according to the voltage comparison signal, and the antenna path selection module gates an antenna path of a corresponding antenna system according to the antenna path selection signal. And the antenna power supply module receives a power supply voltage signal and supplies power to the gated antenna path, so that the radio frequency signal is transmitted to the outside through the gated antenna path. According to the embodiment of the utility model, the superposition of antenna selection information on feed and radio frequency signals is realized, the problem of inconvenient switching of multi-system antennas is solved, the adaptability of an antenna system to a complex communication environment is improved, and the design of a terminal and antenna accessories is simplified.

Description

TECHNICAL FIELD

[0001] The embodiment of the utility model relates to wireless communication field especially relates to a kind of antenna systems based on multiple antenna paths. BACKGROUND

[0002] In wireless communication technology, antenna system as the key component of signal transceiver needs to adapt to multiple antenna systems to meet different communication needs.

[0003] The existing antenna system is generally not flexible and convenient to switch between different antenna systems, often needs complex wiring and multiple control modules to manage different antenna systems, the coordination between modules is poor, and lacks unified and efficient integration mechanism in power management and signal transmission.

[0004] The prior art is difficult to switch flexibly between multiple antenna systems, and the utility model provides a kind of one-line antenna system, realizes the switching of multiple antenna systems under one cable connection, effectively solves the problems of inflexible switching and low management efficiency of the existing antenna system. UTILITY MODEL CONTENT

[0005] The utility model provides a kind of antenna system based on multiple antenna paths to solve the problem of multiple antenna system switching inconvenience.

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

[0007] The host end includes power voltage output control module and radio frequency signal output control module;

[0008] Power voltage output control module and radio frequency signal output control module are connected with cable through output interface, and the power voltage signal and radio frequency signal corresponding to the same antenna system are output respectively;

[0009] The antenna end includes power voltage identification module, comparison signal arrangement module, antenna path selection module, antenna power supply module and at least n kinds of antenna paths of system;N is the integer greater than or equal to 3;

[0010] Power voltage identification module is connected with cable through input interface to receive power voltage signal;Power voltage identification module includes n-way voltage comparison output end, and each way voltage comparison output end generates a way voltage comparison signal according to power voltage signal;

[0011] The comparison signal arrangement module comprises n voltage comparison signal input ends and m path selection signal output ends; the n voltage comparison signal input ends of the comparison signal arrangement module are connected one by one with the n voltage comparison output ends of the power voltage identification module; each path selection signal output end generates an antenna path selection signal according to the voltage comparison signals of the adjacent two voltage comparison signal input ends; wherein, 2 m-1 <n≤2 m , m is an integer greater than 1;

[0012] The antenna path selection module comprises m path selection signal input ends and a radio frequency signal receiving end; the m path selection signal input ends of the antenna path selection module are connected one by one with the m path selection signal output ends of the comparison signal arrangement module, so as to select the antenna path of the corresponding antenna system according to the n antenna path selection signals; the radio frequency signal receiving end is connected with the cable through an input interface, so as to receive the radio frequency signal and transmit it to the outside through the selected antenna path of the corresponding antenna system;

[0013] The antenna power supply module is connected with the cable through an input interface to receive the power voltage signal, and is also electrically connected with the n antenna paths of different systems respectively to supply power to the selected antenna path of the corresponding antenna system.

[0014] Optionally, the power voltage output control module comprises n first voltage stabilizing chips;

[0015] The first voltage stabilizing chip comprises a power supply end, a control signal end and a power voltage output end, the power voltage output end is controlled by the enable signal input from the control signal end, the voltage of the power supply end is stabilized as the power voltage output, and the voltages of the power supply ends of different first voltage stabilizing chips are different.

[0016] Optionally, the radio frequency signal output control module comprises a first gating chip and n radio frequency signal input interfaces;

[0017] The first gating chip comprises a gating control end, an output end and n input ends;

[0018] The n input ends of the first gating chip are connected one by one with the n radio frequency signal input interfaces, and the output end is connected with the output interface; each input end is selectively connected with the output end under the control of the enable signal input from the gating control 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 on the 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 on a signal line connected between 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 n comparators; each comparator comprises a reference voltage end, an input end and an output end;

[0024] In each comparator, the input end is connected with the cable through the input interface, and the output end is connected with one voltage comparison signal of the comparison signal processing module as a voltage comparison output end;

[0025] The output end of each comparator 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; wherein the reference voltage Vref_i input by the reference voltage end in the ith comparator satisfies: Vref_i-1 < Vref_i < Vref_i+1; wherein i is an integer from 2 to n-1.

[0026] Optionally, the comparison signal processing module comprises n-m groups of XNOR gate combinations;

[0027] The jth group of XNOR gate combinations comprises n-j XNOR gates, each XNOR gate comprising two input ends and an output end; wherein j is an integer from 1 to m;

[0028] When j=1, in the XNOR gate combination of the jth group, the two input ends of the kth XNOR gate are connected with the output ends of the kth and k+1th comparators as two voltage comparison signal input ends; the output end of the kth XNOR gate outputs a first level signal or a second level signal according to the level signals output by the output ends of the kth and k+1th comparators; wherein k is an integer from 1 to n-j;

[0029] When j is an integer from 2 to m, the two input ends of the kth XNOR gate in the XNOR gate combination of the jth group are connected with the output ends of the kth and k+1th XNOR gates in the XNOR gate combination of the j-1th group; the output end of the kth XNOR gate outputs a first level signal or a second level signal according to the level signals output by the output ends of the kth and k+1th XNOR gates; wherein k is an integer from 1 to n-j;

[0030] When j=m, the output ends of each XNOR gate in the XNOR gate combination of the jth group are connected with each path selection signal input end of the antenna path selection module as a path selection signal output end; or,

[0031] The comparison signal processing module comprises n-m groups of XNOR gate combinations;

[0032] The jth group of XOR gate combinations includes n-j XOR gates, each of which includes two input terminals and one output terminal; wherein j is an integer from 1 to m;

[0033] When j is 1, in the XOR gate combination of the jth group, the two input terminals of the kth XOR gate are connected to the output terminals of the kth and the k+1th comparators as two-way voltage comparison signal input terminals; the output terminal of the kth XOR gate outputs a first level signal or a second level signal according to the level signals output by the output terminals of the kth and the k+1th comparators; wherein k is an integer from 1 to n-j;

[0034] When j is an integer from 2 to m, in the XOR gate combination of the jth group, the two input terminals of the kth XOR gate are connected to the output terminals of the kth and the k+1th XOR gates in the XOR gate combination of the j-1th group; the output terminal of the kth XOR gate outputs a first level signal or a second level signal according to the level signals output by the output terminals of the kth and the k+1th XOR gates; wherein k is an integer from 1 to n-j;

[0035] When j is m, in the XOR gate combination of the jth group, the output terminals of each XOR gate are connected to the output terminals of each path selection signal input terminal of the antenna path selection module one by one.

[0036] Optionally, the antenna path selection module includes a second gating chip; the second gating chip includes an input terminal, m gating control terminals and n output terminals;

[0037] In the second gating chip, each gating control terminal is connected to the n-way voltage comparison output terminal of the power supply voltage identification module as a one-to-one corresponding connection of a path selection signal input terminal;

[0038] The input terminal is connected to the cable through an input interface;

[0039] The n output terminals are connected to the n types of antenna paths one by one;

[0040] The n output terminals are controlled by the first level signal or the second level signal input by the m gating control terminals and the input terminal to select one.

[0041] Optionally, the antenna path includes a first antenna interface and a second antenna interface, and the first antenna interface and the second antenna interface are used to connect two ends of the antenna;

[0042] The first antenna interface of each antenna path is connected to one output terminal of the second gating chip and is also electrically connected to the antenna power supply module; the second antenna interface is grounded.

[0043] Optionally, the antenna power supply module includes a second voltage stabilizing chip;

[0044] The second voltage stabilizing chip comprises a power input end and a power output end, the power input end is connected with the cable through an input interface, and the power output end is connected with at least part of the antenna channels of the different standards; the power output end outputs the power voltage signal input from the power input end.

[0045] The antenna system provided by the embodiment of the utility model, including host end and antenna end, the output interface of host end and the input interface of antenna end are communicated through a cable, the connection of system is simplified, the complexity of installation and maintenance is reduced, and the overall reliability of system is improved; the power voltage output control module and the radio frequency signal output control module of host end are connected with the cable through output interface, and the power voltage signal and the radio frequency signal of corresponding same antenna standard are output respectively. Antenna end includes power voltage identification module, comparison signal arrangement module, antenna channel selection module, antenna power supply module and at least n kinds of antenna channels of standard; n is integer greater than or equal to 3. Power voltage identification module is connected with the cable through input interface to receive power voltage signal; power voltage identification module generates a voltage comparison signal through setting n voltage comparison output ends, and each voltage comparison output end generates a voltage comparison signal according to power voltage signal; comparison signal arrangement module includes n voltage comparison signal input ends and m channel selection signal output ends; the n voltage comparison signal input ends of comparison signal arrangement module are connected with the n voltage comparison output ends of power voltage identification module one by one; each channel selection signal output end generates an antenna channel selection signal according to the voltage comparison signal of adjacent two voltage comparison signal input ends; wherein, 2 m-1 <n≤2 m , m is integer greater than 1. Antenna channel selection module includes m channel selection signal input ends and radio frequency signal receiving end; the m channel selection signal input ends of antenna channel selection module are connected with the m channel selection signal output ends of comparison signal arrangement module one by one to select the antenna channel of corresponding antenna standard according to n antenna channel selection signals; radio frequency signal receiving end is connected with the cable through input interface to receive radio frequency signal and transmit to outside through the antenna channel of corresponding antenna standard selected; antenna power supply module is connected with the cable through input interface to receive power voltage signal, and is connected with n antenna channels of standard electrically to supply power to the antenna channel of corresponding antenna standard selected, so as to reduce standby power consumption of non-working antenna. The embodiment of the utility model realizes the superposition of antenna selection information on power feeding and radio frequency signal, solves the problem of inconvenient multi-standard antenna switching, improves the adaptability of antenna system to complex communication environment, and simplifies the design of terminal and antenna accessories. BRIEF DESCRIPTION OF DRAWINGS

[0046] Figure 1 The structure diagram of the antenna system based on multiple antenna channels provided by the embodiment of the utility model is shown in the figure;

[0047] Figure 2 is Figure 1 the circuit principle diagram of the power voltage output control module in the antenna system shown in

[0048] Figure 3 is Figure 1 the circuit principle diagram of the radio frequency signal output control module and the coupling module in the antenna system shown in

[0049] Figure 4 is Figure 1 the circuit principle diagram of a comparison signal arrangement module and a power voltage identification module in the antenna system shown in

[0050] Figure 5 is Figure 1 the circuit principle diagram of another comparison signal arrangement module and a power voltage identification module in the antenna system shown in

[0051] Figure 6 is Figure 5 or Figure 4 the circuit principle diagram of a comparator in the power voltage identification module shown in

[0052] Figure 7 is Figure 1 the structural schematic diagram of the power voltage identification module, the comparison signal arrangement module and the antenna path selection module in the antenna system shown in

[0053] Figure 8 is Figure 1 the circuit principle diagram of an antenna path selection module and an antenna path in the antenna system shown in

[0054] Figure 9 is Figure 1 the circuit principle diagram of an antenna power supply module in the antenna system shown in DETAILED DESCRIPTION

[0055] The utility model will be further explained in detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the utility model and are not limited to the utility model. In addition, it should be noted that in order to facilitate the description, only the part related to the utility model is shown in the drawings, not all structures.

[0056] Figure 1 The structural schematic diagram of an antenna system provided by the utility model embodiment is shown in 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.

[0057] The power voltage output control module 110 and the radio frequency signal output control module 120;

[0058] 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;

[0059] The antenna end 200 includes a power voltage identification module 210, a comparison signal arrangement module 250, an antenna path selection module 220, an antenna power supply module 230, and at least n kinds of antenna paths 240; n is an integer greater than or equal to 3;

[0060] The power voltage identification module 210 is connected with the cable through the input interface 201 to receive the power voltage signal; the power voltage identification module 210 includes n voltage comparison output ends 2101, each voltage comparison output end 2101 generates a voltage comparison signal according to the power voltage signal;

[0061] The comparison signal arrangement module 250 includes n voltage comparison signal input ends 251 and m path selection signal output ends 252; the n voltage comparison signal input ends 251 of the comparison signal arrangement module 250 are connected with the n voltage comparison output ends 2101 of the power voltage identification module 210 one by one; each path selection signal output end 252 generates an antenna path selection signal according to the voltage comparison signals of the adjacent two voltage comparison signal input ends 251; wherein, 2 m-1 <n≤2 m m is an integer greater than 1;

[0062] The antenna path selection module 220 includes m path selection signal input ends 2201 and a radio frequency signal receiving end 222; the m path selection signal input ends 2201 of the antenna path selection module 220 are connected with the m path selection signal output ends 252 of the comparison signal arrangement module 250 one by one to select the antenna path 240 corresponding to the antenna system according to the n antenna path selection signals; the radio frequency signal receiving end 222 is connected with the cable through the input interface 201 to receive the radio frequency signal and transmit it to the outside through the selected antenna path 240 corresponding to the antenna system;

[0063] 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 electrically connected with the n kinds of antenna paths 240 respectively to supply power to the selected antenna path 240 corresponding to the antenna system.

[0064] 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 identification module 210 compares the voltage received by the input interface 201 with the n voltage intervals, generates n voltage comparison signals, outputs them from the n voltage comparison output end 2101, and sends the signals to the comparison signal arrangement module 250.

[0065] The n voltage comparison signal input end 251 in the comparison signal arrangement module 250 is connected one-to-one with the n voltage comparison output end 2101 of the power voltage identification module 210. After receiving the n voltage comparison signals, the comparison signal arrangement module 250 generates one antenna path selection signal by comparing the voltage comparison signals of the adjacent two voltage comparison signal input ends 251. The n voltage comparison signals are converted into m antenna path selection signals by the comparison signal arrangement module 250 and sent to the antenna path selection module 220. Among them, m-1 <n≤2 m m is an integer greater than 1, that is, the n circuit comparison signals are reduced and converted into m antenna path selection signals to adapt to the antenna path selection module 220 with m path selection signal input ends 2201. The m path selection signal input end 2201 in the antenna path selection module 220 selects and activates the antenna path 240 corresponding to a specific antenna standard according to the received antenna path selection signal; the radio frequency signal receiving end 222 receives the radio frequency signal sent by the host end through the input interface 201. At the same time, the antenna power supply module 230 is connected with the cable through the input interface 201 to receive the power voltage signal, and then adjusts the power to the voltage level suitable for the working of the antenna path 240.

[0066] Figure 2 is Figure 1 The circuit principle diagram of the power voltage output control module in the antenna system is shown in FIG. 2. As shown in FIG. 2, the power voltage output control module 110 is connected with the central processor in the host end 100 through the voltage control signal input end 1101 and the radio frequency control signal input end 1102. The voltage control signal input end 1101 is connected with the voltage control signal output end 2101 of the power voltage identification module 210 in the antenna end 200 through the connecting cable, and the radio frequency control signal input end 1102 is connected with the radio frequency control signal output end 1201 of the radio frequency signal output control module 120 in the host end 100 through the connecting cable. Figure 2As shown in the figure, in an optional embodiment, the power voltage output control module 110 comprises n first voltage stabilizing chips 111; the first voltage stabilizing chip 111 comprises a power supply end 1111, a control signal end 1112 and a power voltage output end 1113, the power voltage output end 1113 is controlled by the enable signal inputted from the control signal end 1112, the voltage of the power supply end 1113 is stabilized as the power voltage output, and the voltages of the power supply ends 1112 of different first voltage stabilizing chips 111 are different.

[0067] As shown in the figure, Figure 2 The working principle of the power voltage output control module 110 in the antenna system is outlined as follows: the power voltage output control module 110 selects one of the n first voltage stabilizing chips 111 to work according to the voltage control signal sent by the central processing unit, and stabilizes the voltage of the power supply end 1111 as the power voltage output. Exemplarily, when the host end 100 receives the control signal provided by the upper-layer application software, the radio frequency signal corresponding to the control signal is the radio frequency signal, the voltage corresponding to the radio frequency signal to be coupled is the power voltage, and the power voltage is the output voltage of the first voltage stabilizing chip. The central processing unit sends a high-level signal to the first voltage stabilizing chip 111 to activate the first voltage stabilizing chip, and the first voltage stabilizing chip 111 stabilizes the voltage of the power supply end 1113 as the power voltage output.

[0068] Figure 3 As shown in the figure, Figure 1 The circuit principle diagram of the radio frequency signal output control module and the coupling module in the antenna system is shown in the figure. As shown in the figure, Figure 3 As shown in the figure, in an optional embodiment, the radio frequency signal output control module 120 comprises a first gating chip 121, n radio frequency signal input interfaces 122 and; the first gating chip 121 comprises a gating control end 1211, n input ends 1212 and an output end 1213; the n input ends 1212 in the first gating chip 121 are connected in one-to-one correspondence with the n radio frequency signal input interfaces 122, and the output end 1213 is connected with the output interface 122; each input end 1212 is selectively gated with the output end 1213 under the control of the enable signal inputted from the gating control end 1211.

[0069] In an optional embodiment, the host end 100 further comprises a coupling module 130, one end of the coupling module 130 is connected with the power voltage output control module 110, and the other end is connected on the signal line connecting the output end 1214 of the first gating chip 121 and the output interface 101.

[0070] Specifically, the coupling module 130 is connected on the signal line between the power voltage output control module 110 and the output end 1214 of the first gating chip 121, for coupling the direct current signal generated by the power voltage output control module 110 to the radio frequency signal outputted by the first gating chip 121 and outputting.

[0071] 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 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.

[0072] 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.

[0073] Figure 4 yes Figure 1 The circuit diagram shown illustrates a comparison signal processing module and a power supply voltage identification module in the antenna system. Figure 5 yes Figure 1 The circuit diagram shown is for another comparison signal processing module and power supply voltage identification module in the antenna system. Figure 6 yes Figure 5 or Figure 4 The circuit diagram shown is of the comparator in the power supply voltage identification module. Figure 4 and Figure 5 As shown, in an optional embodiment, the power supply voltage identification module 210 includes n comparators 211 ( Figure 4 There are three comparators in the middle. Figure 5 (There are four comparators in the middle). For example... Figure 6 As shown, each comparator 211 includes a reference voltage terminal 2111, an input terminal 2112, and an output terminal 2113. In each comparator 211, the input terminal 2112 is connected to a cable through the input interface 201, and the output terminal 2113 is connected to the antenna path selection module 220. The output terminal 2113 of each comparator 211 is controlled by the relationship between the power supply voltage signal input to the input terminal 2112 and the reference voltage input to the reference voltage terminal 2111, and outputs a first level signal or a second level signal. The reference voltage Vref_i input to the reference voltage terminal in the i-th comparator satisfies: Vref_i-1 < Vref_i < Vref_i+1, where i is an integer from 2 to n-1.

[0074] like Figure 4 and Figure 5The working principle of the power voltage identification module is shown as follows: the power voltage identification module 210 mainly determines the size relationship between the input power voltage signal and the multiple gradient distribution reference voltages (Vref_1 < Vref_i < Vref_i+1; wherein i is an integer from 2 to n-1) through multiple comparators 211, determines the voltage interval where the power voltage signal is located according to the comparison result, and sends a first level signal or a second level signal to the comparison signal arrangement module 250. For example, if the voltage input by the input end 2112 is higher than the voltage of the reference voltage end 2111, the output end 2113 sends a first level signal to the comparison signal arrangement module 250; if the voltage input by the input end 2112 is lower than the voltage of the reference voltage end 2111, the output end 2113 sends a second level signal to the comparison signal arrangement module 250. In the power voltage identification module 210 as shown in Figure 4 The three comparators 211 can generate three voltage comparison signals in the power voltage identification module 210 as shown in Figure 5 The four comparators 211 can generate four voltage comparison signals in the power voltage identification module 210 as shown in

[0075] Figure 7 is Figure 1 The structure of the power voltage identification module, the comparison signal arrangement module and the antenna path selection module in the antenna system is shown in Figure 4 、 Figure 5 and Figure 7 The comparison signal arrangement module 250 includes n-m groups of XNOR gate combinations or n-m groups of XOR gate combinations. When the comparison signal arrangement module 250 includes n-m groups of XNOR gate combinations:

[0076] The jth group of XNOR gate combinations includes n-j XNOR gates, each XNOR gate including two input ends and an output end; wherein j is an integer from 1 to m;

[0077] When j=1, in the jth group of XNOR gate combinations, the two input ends of the kth XNOR gate are connected to the output ends of the kth and k+1th comparators as two voltage comparison signal input ends 251; the output end of the kth XNOR gate outputs a first level signal or a second level signal according to the level signals output by the output ends of the kth and k+1th comparators; wherein k is an integer from 1 to n-j;

[0078] When j is an integer from 2 to m, in the jth group of XNOR gate combinations, the two input ends of the kth XNOR gate are connected to the output ends of the kth and k+1th XNOR gates in the j-1th group of XNOR gate combinations; the output end of the kth XNOR gate outputs a first level signal or a second level signal according to the level signals output by the output ends of the kth and k+1th XNOR gates; wherein k is an integer from 1 to n-j;

[0079] When j = m, the output of each XOR gate in the j-th group of XOR gate combinations serves as a path selection signal output 252, which is connected one-to-one with the path selection signal input 2201 of the antenna path selection module 220.

[0080] Specifically, in the XNOR gate, if the input signals are the same, a high-level signal (e.g., 1) is output; if the input signals are different, a low-level signal (e.g., 0) is output. Based on the type of antenna path 240 and the number of corresponding gating signals, each comparator 211 or each XNOR gate corresponds to two levels of signals. These two levels of signals can be considered as one bit of a binary signal. Each additional bit in the binary signal corresponds to twice as many antenna paths 240. Based on this, by judging the relationship between the voltage of the input signal and the reference voltages of multiple gradient distributions, the voltage relationship is converted into a level signal to confirm the antenna path 240 corresponding to the gating signal sent by the host terminal 100.

[0081] For example, such as Figure 5 As shown, when the comparison signal processing module 250 includes two sets (4-2=2) of XOR gate combinations, assuming the input signal voltage is greater than Vref1 but less than Vref2, Vref3, and Vref4, the output terminals 2113 of the four comparators 211 in the power supply voltage identification module 210 output four sets of level signals, from top to bottom: 1 (first level signal), 0 (second level signal), 0, 0. The first set of XOR gates outputs 0, 1, 1 from top to bottom. The second set of XOR gates outputs 0, 1 from top to bottom. Similarly, when the input signal voltage is greater than Vref2 but less than Vref3, the first set of XOR gates outputs 1, 0, 1 from top to bottom. The second set of XOR gates outputs 0, 0 from top to bottom.

[0082] Similarly, when the comparison signal processing module 250 includes a combination of nm XOR gates:

[0083] The j-th group of XOR gates consists of nj XOR gates, each with two inputs and one output; where j is an integer from 1 to m.

[0084] When j is 1, in the XOR gate combination of the j-th group, the two input terminals of the k-th XOR gate serve as two voltage comparison signal input terminals 251, which are connected to the output terminals of the k-th and (k+1)-th comparators, respectively; the output terminal of the k-th XOR gate outputs a first level signal or a second level signal according to the level signals output by the output terminals of the k-th and (k+1)-th comparators; where k is an integer from 1 to nj;

[0085] When j is an integer from 2 to m, the two inputs of the k-th XOR gate in the j-th XOR gate combination are connected to the outputs of the k-th and (k+1)-th XOR gates in the (j-1)-th XOR gate combination, respectively; the output of the k-th XOR gate outputs a first level signal or a second level signal based on the level signals output by the outputs of the k-th and (k+1)-th XOR gates; where k is an integer from 1 to nj;

[0086] When j is m, the output of each XOR gate in the j-th group of XOR gate combinations serves as a path selection signal output 252, which is connected one-to-one with the path selection signal input 2201 of the antenna path selection module 220.

[0087] Specifically, unlike the case in an XOR gate, in an XOR gate, if the input signals are the same, the output is a low-level signal (e.g., 0); if the input signals are different, the output is a high-level signal (e.g., 1). Suppose that the output signals in a certain XOR gate are 1, 0, and 1. If the XOR gate is replaced with an XOR gate, the output will be 0, 1, and 0.

[0088] For example, such as Figure 4 As shown, when the comparison signal processing module 250 includes one set of (3-2=1) XOR gate combinations, assuming the input signal voltage is greater than Vref1 but less than Vref2 and Vref3, the output terminals 2113 of the four comparators 211 in the power supply voltage identification module 210 output three sets of level signals, from top to bottom: 1 (first level signal), 0 (second level signal), and 0. The XOR gates output 1 and 0 from top to bottom. Similarly, when the input signal voltage is greater than Vref2 but less than Vref3, the XOR gates output 1 and 1 from top to bottom.

[0089] Figure 8 yes Figure 1 The diagram shows a circuit schematic of an antenna path selection module and an antenna path in the antenna system shown. Figure 8 As shown, the antenna path selection module 220 includes a second gating chip 221; the second gating chip includes an input terminal 2212, m gating control terminals 2211 and n output terminals 2213;

[0090] In the second gating chip 221, each gating control terminal 2211 is connected to the n voltage comparison output terminals 2101 of the power supply voltage identification module 220 as a channel selection signal input terminal.

[0091] Input terminal 2212 is connected to a cable via input interface 201;

[0092] The n output terminals 2213 are connected one-to-one with the n antenna paths 240 of different standards;

[0093] The n output terminals 2213 are controlled by the first level signal or the second level signal inputted by the m gate control terminals 2211 and the input terminal 2212.

[0094] It should be noted that, as Figure 8 The second gate chip 221 is provided with one gate control terminal 2211 and two output terminals 2213 for the convenience of example, in actual application, the number of output terminals 2213 on the second gate chip 221 is n, n is an integer greater than or equal to 3, and the number of gate control terminals 2211 is m, m satisfies 2 m-1 <n≤2 m Therefore, it can be known that for the selection of the second gate chip 221, it needs to meet that there are m gate control terminals 2211 and n output terminals 2213.

[0095] As Figure 8 The working principle of the antenna path selection module is as follows: according to the arrangement result of the first level signal or the second level signal inputted by the m gate control terminals 2211 according to the comparison result of the power supply voltage signal and the voltage comparison signal, the second gate chip 221 selects the output terminal 2213 corresponding to the corresponding antenna path 240.

[0096] Optionally, the antenna path 240 includes a first antenna interface 241 and a second antenna interface 242, and the first antenna interface 241 and the second antenna interface 242 are used to connect two ends of the antenna.

[0097] The first antenna interface 241 of each antenna path 240 is connected with one output terminal 2213 of the second gate chip 221, and is also electrically connected with the antenna power supply module 230; and the second antenna interface 242 is grounded.

[0098] Specifically, the antenna path 240 determines its working state through the first antenna interface 241 receiving the gate signal sent by the corresponding output terminal 2213 of the second gate chip 221. In addition, the first antenna interface 241 is also electrically connected with the antenna power supply module 230, which is responsible for providing necessary power supply for the antenna (for example, when an amplification circuit is arranged in the antenna, power supply is needed for the amplification circuit).

[0099] Figure 9 As Figure 1 The circuit principle diagram of the antenna power supply module in the antenna system is shown in Figure 9As shown, in an optional embodiment, the antenna power supply module 230 comprises a second voltage stabilizing chip 231; the second 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 at least part of the antenna channel 240 of the different modes; the power output end 2312 outputs the voltage signal inputted by the power input end 2311 after voltage stabilization.

[0100] Specifically, since the antenna channels 240 of different modes 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 second voltage stabilizing chip 231 arranged in the antenna power supply module 230 stabilizes the voltage inputted by the power input end 2311 to the 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.

[0101] It is noted that the above are only the 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 based on a plurality of antenna paths, characterized by The host end and the antenna end are connected through a cable; The host end comprises a power supply voltage output control module and a radio frequency signal output control module; The power supply voltage output control module and the radio frequency signal output control module are connected with the cable through the output interface and output power supply voltage signals and radio frequency signals of the same antenna system respectively; The antenna end comprises a power supply voltage identification module, a comparison signal arrangement module, an antenna path selection module, an antenna power supply module and at least n antenna paths of different systems; n is an integer greater than or equal to 3; The power supply voltage identification module is connected with the cable through the input interface to receive the power supply voltage signals; The power supply voltage identification module comprises n voltage comparison output ends, each of which generates a voltage comparison signal according to the power supply voltage signals; The comparison signal arrangement module comprises n voltage comparison signal input ends and m path selection signal output ends; the n voltage comparison signal input ends of the comparison signal arrangement module are connected with the n voltage comparison output ends of the power supply voltage identification module one by one; each of the path selection signal output ends generates an antenna path selection signal according to the voltage comparison signals of the adjacent two voltage comparison signal input ends; wherein 2m-1 The antenna path selection module comprises m path selection signal input ends and a radio frequency signal receiving end; the m path selection signal input ends of the antenna path selection module are connected with the m path selection signal output ends of the comparison signal arrangement module one by one to select the antenna path of the corresponding antenna system according to the n antenna path selection signals; the radio frequency signal receiving end is connected with the cable through the input interface to receive the radio frequency signals and transmit them to the outside 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 supply voltage signals and is electrically connected with the n antenna paths of different systems to supply power to the selected antenna path of the corresponding antenna system.

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

3. The antenna system of claim 1, wherein, The radio frequency signal output control module comprises a first gating chip and n radio frequency signal input interfaces; The first gating chip comprises a gating control end, an output end and n input ends; The n input ends of the first gating chip are connected with the n radio frequency signal input interfaces one by one, and the output end is connected with the output interface; each of the input ends is selectively connected with the output end under the control of the enable signal input from the gating control end.

4. The antenna system of claim 3, wherein, The host 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.

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 to 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 voltage identification module comprises n comparators; each of the comparators comprises a reference voltage end, an input end and an output end. In each of the comparators, the input end is connected with the cable through the input interface, and the output end is connected with one of the voltage comparison signals of the comparison signal arrangement module as one of the voltage comparison output ends. The output end of each of the comparators 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; wherein the reference voltage Vref_i input by the reference voltage end in the ith comparator satisfies: Vref_i-1 < Vref_i < Vref_i+1; wherein i is an integer from 2 to n-1.

7. The antenna system of claim 6, wherein, The comparison signal arrangement module comprises n-m groups of XNOR gate combinations; The jth group of the XNOR gate combinations comprises n-j XNOR gates, each of which comprises two input ends and one output end; wherein j is an integer from 1 to m; When j=1, in the jth group of the XNOR gate combinations, the two input ends of the kth XNOR gate are connected with the output ends of the kth and k+1th comparators as two of the voltage comparison signal input ends; the output end of the kth XNOR gate outputs a first level signal or a second level signal according to the level signals output by the output ends of the kth and k+1th comparators; wherein k is an integer from 1 to n-j; When j is an integer from 2 to m, in the jth group of the XNOR gate combinations, the two input ends of the kth XNOR gate are connected with the output ends of the kth and k+1th XNOR gates in the j-1th group of the XNOR gate combinations; the output end of the kth XNOR gate outputs a first level signal or a second level signal according to the level signals output by the output ends of the kth and k+1th XNOR gates; wherein k is an integer from 1 to n-j; When j=m, in the jth group of the XNOR gate combinations, the output end of each of the XNOR gates is connected with each of the path selection signal input ends of the antenna path selection module as one of the path selection signal output ends; or, The comparison signal arrangement module comprises n-m groups of XNOR gate combinations; The jth group of the XNOR gate combinations comprises n-j XNOR gates, each of which comprises two input ends and one output end; wherein j is an integer from 1 to m; In the jth group of the XNOR gate combinations, the two input ends of the kth XNOR gate are connected with the output ends of the kth and k+1th XNOR gates in the j-1th group of the XNOR gate combinations; the output end of the kth XNOR gate outputs a first level signal or a second level signal according to the level signals output by the output ends of the kth and k+1th XNOR gates; wherein k is an integer from 1 to n-j; When j is 1, in the XOR gate combination of the jth group, two input ends of the kth XOR gate are connected to the output ends of the kth and k+1th comparators as two voltage comparison signal input ends; the output end of the kth XNOR gate outputs a first level signal or a second level signal according to the level signals output by the output ends of the kth and k+1th comparators; wherein k is an integer from 1 to n-j; When j is an integer from 2 to m, in the XOR gate combination of the jth group, two input ends of the kth XOR gate are connected to the output ends of the kth and k+1th XOR gates in the XOR gate combination of the j-1th group; the output end of the kth XNOR gate outputs a first level signal or a second level signal according to the level signals output by the output ends of the kth and k+1th XOR gates; wherein k is an integer from 1 to n-j; When j is m, the output ends of the XOR gates in the XOR gate combination of the jth group are connected to the path selection signal input ends of the antenna path selection module as one-to-one corresponding connection.

8. The antenna system of claim 7, wherein, The antenna path selection module comprises a second gating chip; the second gating chip comprises an input end, m gating control ends and n output ends; In the second gating chip, the gating control ends are connected to the voltage comparison output ends of the power supply voltage identification module as one-to-one corresponding connection as the path selection signal input ends; The input end is connected to the cable through the input interface; The n output ends are connected to n types of antenna paths one by one; The n output ends are controlled by the first level signal or the second level signal input by the m gating control ends and the input end.

9. The antenna system of claim 8, wherein, The antenna path comprises 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 each antenna path is connected to an output end of the second gating chip and is also electrically connected to the antenna power supply module; and the second antenna interface is grounded.

10. The antenna system of claim 1, wherein, The antenna power supply module comprises a second voltage stabilizing chip; The second voltage stabilizing chip comprises a power input end and a power output end; the power input end is connected to the cable through the input interface, and the power output end is connected to at least part of the antenna paths; and the power output end stabilizes and outputs the power voltage signal input by the power input end.

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