CN107612583A - The antenna system and control method of changeable external antenna - Google Patents
The antenna system and control method of changeable external antenna Download PDFInfo
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- CN107612583A CN107612583A CN201710980410.0A CN201710980410A CN107612583A CN 107612583 A CN107612583 A CN 107612583A CN 201710980410 A CN201710980410 A CN 201710980410A CN 107612583 A CN107612583 A CN 107612583A
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- 230000005540 biological transmission Effects 0.000 claims description 18
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- 238000005859 coupling reaction Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 5
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- 238000005516 engineering process Methods 0.000 description 2
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Abstract
The present invention is on a kind of antenna system of changeable external antenna, including multiple built-in antennas, switching circuit, external antenna control circuit and external antenna connector.Multiple built-in antennas comprise at least the first built-in antenna and the second built-in antenna, and the first built-in antenna and the second built-in antenna are used to receiving or transmitting radiofrequency signal.Switching circuit is used to switch the first built-in antenna or the second built-in antenna to receive or transmit radiofrequency signal.External antenna control circuit is used to transmit control signal to switching circuit.When external antenna connector connects external antenna, external antenna control circuit transmits the control signal of the first logic level to switching circuit, and switching circuit switches to external antenna and performs the function of receiving or transmit radiofrequency signal.
Description
Technical field
The present invention relates to a kind of antenna system, more particularly to a kind of antenna system and controlling party of changeable external antenna
Method.
Background technology
Fig. 1 is refer to, Fig. 1 is the circuit diagram of traditional antenna system.Traditional antenna system 100 includes the first built-in day
Line 110, the second built-in antenna 120, switching circuit 130 and microcontroller 140.Switching circuit 130 is electrically connected with the first built-in day
Line 110, the second built-in antenna 120 and microcontroller 140.Microcontroller 140 is used to transmit micro computer signal MS to switching circuit
130.Micro computer signal MS is used to control switching circuit 130 to switch the first built-in antenna 110 or the second built-in antenna 120 to enter
Row transmission receives radiofrequency signal RFS.
However, when weather is bad, radiofrequency signal RFS delivery quality can be had a strong impact on, implies that the first built-in antenna 110
And second built-in antenna 120 communication quality it is all very poor, the micro computer signal MS for causing microcontroller 140 to be transmitted can be with machine-cut
Change the first built-in antenna 110 or the second built-in antenna 120.Or there ought be the transmission matter that obstacle has a strong impact on radiofrequency signal RFS
During amount, controller 140 can similarly switch the first built-in antenna 110 or the second built-in antenna 120 at random.
The content of the invention
The technical problems to be solved by the invention are, provide a kind of changeable external antenna in view of the shortcomings of the prior art
Antenna system and control method.
In order to solve above-mentioned technical problem, the embodiment of the present invention provides a kind of antenna system of changeable external antenna,
Including multiple built-in antennas, switching circuit, external antenna control circuit and external antenna connector.Multiple built-in antennas at least wrap
The first built-in antenna and the second built-in antenna are included, the first built-in antenna and the second built-in antenna are used to receiving or transmitting radio frequency letter
Number.Switching circuit couples the first built-in antenna and the second built-in antenna, and switching circuit is used to switch the first built-in antenna or second
Built-in antenna is to receive or transmit radiofrequency signal.External antenna control circuit couples switching circuit, for transmitting control signal extremely
Switching circuit.External antenna control connector couples external antenna control circuit and the second built-in antenna.Wherein, external antenna is worked as
When connector connects external antenna, external antenna control circuit transmits the control signal of the first logic level to switching circuit, cuts
Change circuit and switch to external antenna execution reception or transmission radiofrequency signal.
Further, when external antenna connector does not connect external antenna, external antenna control circuit transmission the
For the control signal of two logic levels to switching circuit, switching circuit switches to the first built-in antenna or the second built-in antenna to receive
Or transmission radiofrequency signal.
Further, the control signal of the first logic level is the control signal of logic low；Second logic level
Control signal be logic high control signal.
Further, switching circuit also includes switching with door and switching, and switching switch includes the first pin and second connect
Pin, include first input end, the second input and output end with door；Micro computer signal is received with the first input end of door, with door
The second input receive the control signal that is transmitted of external antenna control circuit, with door according to micro computer signal and control signal
And produce relatively and output signal to switching switch, output signal is used to switch the first pin or the execution of the second pin receives or transmission
Radiofrequency signal.
Further, antenna system still further comprises：Voltage source, voltage source are coupled described external by the first inductance
Antenna connector, when external antenna connector does not connect the external antenna, voltage source is used to provide voltage to external day
Line control circuit；When external antenna connects external antenna connector, voltage source forms open circuit with external antenna control circuit.
Further, external antenna control circuit has resistance and the second inductance, one end ground connection of resistance, resistance it is another
One end couples one end of the second inductance, the other end coupling external antenna connector of the second inductance.
Further, the first built-in antenna and the second built-in antenna are dipole antenna.
The embodiment of the present invention provides a kind of wireless Wireless Router of changeable external antenna, including multiple built-in antennas, switching
Circuit, external antenna control circuit, light-emitting device and external antenna connector.Multiple built-in antennas comprise at least the first built-in day
Line and the second built-in antenna, the first built-in antenna and the second built-in antenna are used to receiving or transmitting radiofrequency signal.Switching circuit coupling
The first built-in antenna and the second built-in antenna are connect, switching circuit is used to switch the first built-in antenna or the second built-in antenna to receive
Or transmission radiofrequency signal.External antenna control circuit couples switching circuit, for transmitting control signal to switching circuit.External day
Line traffic control connector couples external antenna control circuit and the second built-in antenna.Light-emitting device is used for according to the logical of wireless Wireless Router
Believe quality and adjust glow color.Wherein, when external antenna connector connects external antenna, the transmission of external antenna control circuit
To switching circuit, switching circuit switches to external antenna and performs reception or transmission radio frequency letter the control signal of first logic level
Number.
The embodiment of the present invention provides a kind of control method of changeable external antenna, suitable for antenna system, antenna system
Including multiple built-in antennas, switching circuit, external antenna control circuit and external antenna connector.Multiple built-in antennas at least wrap
Include the first built-in antenna and the second built-in antenna.External antenna connector couples external antenna control circuit and the second built-in day
Line.Control method includes switching the first built-in antenna or the second built-in antenna by switching circuit to receive or transmit radiofrequency signal；
Control signal is transmitted to switching circuit by external antenna control circuit；Wherein, when external antenna connector connects external antenna,
Control signal to switching circuit, the switching circuit that external antenna control circuit transmits the first logic level switches to external antenna and held
Row receives or transmission radiofrequency signal.
Further, when external antenna connector does not connect external antenna, external antenna control circuit transmission the
For the control signal of two logic levels to switching circuit, switching circuit switches to the first built-in antenna or the second built-in antenna to receive
Or transmission radiofrequency signal.
The beneficial effects of the present invention are the antenna system that technical solution of the present invention is provided can be by " working as antenna system
External antenna control circuit transmit the first logic level control signal to switching circuit when, switching circuit switches to external day
Line performs the function of receiving or transmit radiofrequency signal." technical characteristic, the antenna system of changeable external antenna of the invention can
When weather is bad or veil influences to cause communication quality bad, to replace built-in antenna to perform transmitting-receiving by external antenna and penetrate
The function of frequency signal.In this way, when the communication quality of built-in antenna is bad, its communication quality is lifted by external antenna.
For the enabled feature and technology contents for being further understood that the present invention, refer to below in connection with the present invention specifically
Bright and accompanying drawing, but the accompanying drawing provided is only provided and used with reference to explanation, is not used for being any limitation as the present invention.
Brief description of the drawings
Fig. 1 is the circuit diagram of traditional antenna system.
Fig. 2A is the circuit diagram of the antenna system of the changeable external antenna of the embodiment of the present invention.
Fig. 2 B are the truth table of Fig. 2A switching circuit.
Fig. 3 is that the antenna system by changeable external antenna of the embodiment of the present invention is shown applied to the outward appearance of wireless Wireless Router
It is intended to.
Fig. 4 is the control method flow chart of the antenna system of the changeable external antenna of the embodiment of the present invention.
Embodiment
It is that to improve traditional antenna system 100 as shown in Figure 1 bad or veil has a strong impact on communication matter in weather
During amount, microcontroller 140 simultaneously can not pick out which of the first built-in antenna 110 or the second built-in antenna 120 communication matter
Amount is preferable, causes the micro computer signal MS that microcontroller 140 is transmitted to control the first built-in day of switching at random of switching circuit 130
The built-in antenna 120 of line 110 or second performs transceiving radio frequency signal RFS.In other words, it is bad or veil has a strong impact in weather
During communication quality, traditional antenna system 100 can not effectively switch to the preferable built-in antenna of communication quality.Below will be to this
Technical scheme used in effective lifting communication quality that the embodiment of invention provides is described further.
Fig. 2A is referred to, Fig. 2A is the circuit diagram of the antenna system of the changeable external antenna of the embodiment of the present invention.It can cut
Changing the antenna system 200 of external antenna includes multiple built-in antennas, multiple built-in antennas comprise at least the first built-in antenna 210,
Second built-in antenna 220.Antenna system 200 also include switching circuit 230, microcontroller 240, external antenna control circuit 250,
External antenna connector 260 and voltage source 270.
Microcontroller 240 controls receives or transmits radiofrequency signal by the first built-in antenna 210 or the second built-in antenna 220
RFS.In other words, the micro computer signal MS that microcontroller 240 is transmitted is used to make the switching in switching circuit 230 to switch 233
Switch to by the first built-in antenna 210 and the second built-in antenna 220 wherein communication quality preferably.
Switching circuit 230 is coupled to the first built-in antenna 210 and the second built-in antenna 220, and switching circuit 230 is used to switch
First built-in antenna 210 or the second built-in antenna 220 are to receive or transmit radiofrequency signal RFS.Furthermore, it is understood that switching circuit
230 are included with door 231 and switching switch 233, the coupling switching of output end 2313 switch 233 with door 231.Include the with door 231
One input 2311 and the second input 2312.Micro computer signal MS is received with the first input end 2311 of door 231.Switching switch
233 include the first pin 2331 and the second pin 2332.External antenna control circuit is received with the second input 2312 of door 231
The 250 control signal CS transmitted, the control transmitted with door 231 according to micro computer signal MS and external antenna control circuit 250
Signal CS processed and the relative output signal OS that produces are to switching switch 233.In other words, it is used to pass with the output end 2313 of door 231
Output signal OS is sent to can be used for the handoff functionality for performing switching switch 233 to switch 233, output signal OS is switched.
External antenna connector 260 couples external antenna control circuit 250 and the second built-in antenna 220, and external antenna connects
Device 260 is connect to be used to connect external antenna.For example, when the first built-in antenna 210 and the communication quality of the second built-in antenna 220
Smaller than default value when, feux rouges is converted into by green glow by the light-emitting device (not shown) of antenna system 200, reminded beyond user's palpus
Antenna is connect to lift the communication quality of antenna system 200, forces to perform transceiving radio frequency signal RFS function, generation by external antenna
For the first built-in antenna 210 and the communication function of the second built-in antenna 220.External antenna control circuit 250 is coupled to switching electricity
The built-in antenna 220 of road 230 and second, external antenna control circuit 250 are used to transmit control signal CS to switching circuit 230.
When external antenna connector 260 connects external antenna, external antenna control circuit 250 transmits the first logic level
Control signal CS to switching circuit 230, the control signal CS of the first logic level is the control signal CS of logic low, is patrolled
Low level control signal CS is collected to be used to make switching circuit 230 switch to external antenna execution reception or transmission radiofrequency signal RFS
Function.When external antenna connector 260 is without connection external antenna, external antenna control circuit 250 transmits the second logic
For the control signal CS of level to switching circuit 230, the control signal CS of the second logic level is the control signal of logic high
CS, the control signal CS of logic high are used to make switching circuit 233 switch to the first built-in antenna 210 or the second built-in antenna
220 to receive or transmit radiofrequency signal RFS.
Voltage source 270 couples external antenna connector 260 by the first inductance 271, when external antenna connector 260 does not have
When connecting external antenna, voltage source 270 is used to provide the electricity that voltage is provided to external antenna control circuit 250, voltage source 270
Press for making external antenna control circuit 250 transmit the control signal CS of logic high to switching circuit 230 and door 230
Second input 2312.The control signal CS of logic high opens the handoff functionality of switching switch 233.Now, by microcontroller
The micro computer signal MS that device 240 is transmitted switches the first built-in antennas 210 or the second built-in antenna to determine that switching switchs 233
220 perform transceiving radio frequency signal RFS function.When external antenna connects external antenna connector 260, voltage source 270 with it is outer
Connect antenna controling circuit 250 and form open circuit, for circuit theory, voltage source 270 simultaneously can not provide voltage to external antenna
Control circuit 250, external antenna control circuit 250 transmit the control signal CS of logic low to switching circuit 230 and door
231 the second input 2312.The control signal CS of logic low is used to make switching switch 233 switch to external antenna execution
Transceiving radio frequency signal RFS communication function.For example, control signal CS can be the control signal CS of DC voltage.
External antenna control circuit 250 has the inductance 253 of resistance 251 and second, one end ground connection of resistance 251, resistance 251
The other end couple one end of the second inductance 253, and by the inductance 253 of resistance 251 and second contact transmission control signal CS extremely
With the second input 2312 of door 231, the other end coupling external antenna connector 260 and switching circuit of the second inductance 253
230.Wherein the first built-in antenna 210 and the second built-in antenna 220 are dipole antenna.Dipole antenna can be half wavelength dipoles day
Line.
Please refer to Fig. 2A and Fig. 2 B, Fig. 2 B are the truth table of Fig. 2A switching circuit.When external antenna connector 260
During not connected external antenna, voltage source 270 provides voltage to external antenna control circuit 250, to make external antenna control circuit
With door 231, the first built-in antenna 210 extremely is switched to for making switching switch 233 by the control signal CS of 250 transmission logic highs
Or second built-in antenna 220 to receive or transmit radiofrequency signal RFS, now, by microcontroller 240 come control switching switch 233
Switch to the first built-in antenna 210 or the second built-in antenna 220 performs transceiving radio frequency signal RFS function.When the first built-in day
When the communication quality of the built-in antenna 220 of line 210 or second is all bad, external day can be connected by external antenna connector 260
Line, now, external antenna control circuit 250 and voltage source 270 form open circuit, and voltage source 270 simultaneously can not provide voltage to external
Antenna controling circuit 250.External antenna control circuit 250 transmit logic low control signal CS to door 231, logic low
The control signal CS of level is used to make switching switch 233 switch to the function that external antenna performs transceiving radio frequency signal RFS.
Referring to Fig. 3, the antenna system that Fig. 3 is the changeable external antenna of the embodiment of the present invention is applied to wireless Wireless Router
Schematic appearance.Wireless Wireless Router 300 comprises at least the first built-in antenna 310, the second built-in antenna 320, external antenna and connected
Connect device 360 and light-emitting device 380.In general, can be wireless with the connection of WIFI patterns when user uses mobile device positioned at interior
Wireless Router 300, wireless Wireless Router 300 include multiple built-in antennas, and the direction pointed by each built-in antenna simultaneously differs, with order
The communication quality of indoor everywhere keeps excellent.When the first built-in antenna 310 and the second built-in antenna 320 point to the every of interior
When communication quality caused by individual corner is all bad, external antenna can be connected by external antenna connector 360, forced by external day
Line performs transceiving radio frequency signal RFS function.In addition, when the communication quality of interior is bad, light-emitting device 380 can be by green light
Switch to red light, to remind user to need external antenna being connected to external antenna connector 360.
Please refer to the control of the antenna system for the changeable external antenna that Fig. 2A and Fig. 4, Fig. 4 are the embodiment of the present invention
Method flow diagram.In step S405, by built-in antenna transceiving radio frequency signal RFS, switching circuit 230 switches the first built-in antenna
210 or second built-in antenna 220 to receive or transmit radiofrequency signal RFS.In step S410, by external antenna control circuit
250 transmit control signal CS to switching circuit 230.In step S415, judge whether to connect external antenna, if so, entering step
Rapid S420, if it is not, into step S425.In the step s 420, when external antenna connector 260 connects external antenna, external day
Line control circuit 250 transmits the control signal CS of logic low to switching circuit 230, and the control signal CS of logic low is used
The function that external antenna performs reception or transmission radiofrequency signal RFS is switched in making switching circuit 230.In step S425, outside
When connecing antenna connector 260 without connection external antenna, external antenna control circuit 250 transmits the control signal of logic high
CS is to switching circuit 230, and the control signal CS of logic high is for making switching circuit 230 switch to the first built-in antenna 210
Or second built-in antenna 220 to receive or transmit radiofrequency signal RFS.
In summary, the antenna system of the changeable external antenna of the embodiment of the present invention, which has, can connect external antenna
External antenna connector, external antenna connector can be when the communication quality of built-in antenna be all bad, there is provided external antenna is strong
System performs the function of transceiving radio frequency signal.In addition, by the antenna system of above-mentioned changeable external antenna, wirelessly divide in general
Enjoy only needing to install additional in device to substitute to be performed by microcontroller with door, voltage source and external antenna control circuit and switch built-in day
The communication function of line, and the program code of microcontroller need not be changed, therefore, it can effectively reduce cost.In addition, subtract
The number of few random switching built-in antenna of switching switch, can be with the service life of extension antenna system.
Embodiments of the invention are the foregoing is only, it is not limited to the scope of patent protection of the present invention.It is any ripe
Alike those skilled in the art is practised, is not being departed from spirit and scope of the invention, the variation made and the equivalence replacement of retouching, is still this hair
In bright scope of patent protection.
Claims (10)
1. a kind of antenna system of changeable external antenna, it is characterised in that the antenna system includes：
Multiple built-in antennas, including at least one first built-in antenna and one second built-in antenna, first built-in antenna and institute
The second built-in antenna is stated to be used to receiving or transmitting a radiofrequency signal；
One switching circuit, couples first built-in antenna and second built-in antenna, and the switching circuit is used to switch institute
The first built-in antenna or second built-in antenna are stated to receive or transmit the radiofrequency signal；
One external antenna control circuit, couples the switching circuit, for transmitting a control signal to the switching circuit；And
One external antenna connector, couple the external antenna control circuit and second built-in antenna；
Wherein, when the external antenna connector connects an external antenna, the external antenna control circuit transmission first is patrolled
The control signal of level is collected to the switching circuit, the switching circuit switches to the external antenna and performs reception or pass
Send the radiofrequency signal.
2. antenna system according to claim 1, it is characterised in that described in not connected when the external antenna connector
During external antenna, the external antenna control circuit transmits the control signal of the second logic level to the switching circuit,
The switching circuit switches to first built-in antenna or second built-in antenna to receive or transmit the radiofrequency signal.
3. antenna system according to claim 2, it is characterised in that the control signal of the first logic level is logic
The low level control signal；The control signal of second logic level is the control signal of logic high.
4. antenna system according to claim 1, it is characterised in that the switching circuit also includes one and door and a switching
Switch, the switching switch include one first pin and one second pin, it is described with door including a first input end, one second defeated
Enter end and an output end；It is described to receive a micro computer signal with the first input end of door, it is described described second defeated with door
Enter end and receive the control signal that the external antenna control circuit is transmitted, it is described with door according to the micro computer signal and
The control signal and it is relative produce one and output signal to the switching switch, the output signal, which is used to switching described first, to be connect
Pin or second pin, which perform, receives or transmits the radiofrequency signal.
5. antenna system according to claim 1, it is characterised in that the antenna system includes：
One voltage source, the voltage source couple the external antenna connector by one first inductance, when the external antenna connects
When connecing device and not connecting the external antenna, the voltage source is used to provide a voltage to the external antenna control circuit；When
When the external antenna connects the external antenna connector, the voltage source forms disconnected with the external antenna control circuit
Road.
6. antenna system according to claim 1, it is characterised in that the external antenna control circuit have a resistance with
One second inductance, one end ground connection of the resistance, one end of other end coupling second inductance of the resistance, described second
The other end of inductance couples the external antenna connector.
7. antenna system according to claim 1, it is characterised in that in wherein described first built-in antenna and described second
It is dipole antenna to build antenna.
8. a kind of wireless Wireless Router of changeable external antenna, it is characterised in that the wireless Wireless Router includes：
Multiple built-in antennas, including at least one first built-in antenna and one second built-in antenna, first built-in antenna and institute
The second built-in antenna is stated to be used to receiving or transmitting a radiofrequency signal；
One switching circuit, couples first built-in antenna and second built-in antenna, and the switching circuit is used to switch institute
The first built-in antenna or second built-in antenna are stated to receive or transmit the radiofrequency signal；
One external antenna control circuit, couples the switching circuit, for transmitting a control signal to the switching circuit；
One external antenna connector, couple the external antenna control circuit and second built-in antenna；
One light-emitting device, glow color is adjusted for the communication quality according to the wireless Wireless Router；And
Wherein, when the external antenna connector connects an external antenna, the external antenna control circuit transmission first is patrolled
The control signal of level is collected to the switching circuit, the switching circuit switches to the external antenna and performs reception or pass
Send the radiofrequency signal.
9. a kind of control method of changeable external antenna, suitable for an antenna system, the antenna system includes multiple built-in
Antenna, a switching circuit, an external antenna control circuit and an external antenna connector, multiple built-in antennas comprise at least one the
One built-in antenna and one second built-in antenna, the external antenna connector couple the external antenna control circuit and described the
Two built-in antennas, it is characterised in that the control method includes：
First built-in antenna or second built-in antenna are switched by the switching circuit to receive or transmit radio frequency letter
Number；And
One control signal is transmitted to the switching circuit by the external antenna control circuit；
Wherein, when the external antenna connector connects an external antenna, the external antenna control circuit transmission first is patrolled
The control signal of level is collected to the switching circuit, the switching circuit switches to the external antenna and performs reception or pass
Send the radiofrequency signal.
10. control method according to claim 9, it is characterised in that when the external antenna connector does not connect institute
When stating external antenna, the control signal that the external antenna control circuit transmits the second logic level is electric to the switching
Road, the switching circuit switches to first built-in antenna or second built-in antenna performs and receives or transmit the radio frequency
Signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710980410.0A CN107612583A (en) | 2017-10-19 | 2017-10-19 | The antenna system and control method of changeable external antenna |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710980410.0A CN107612583A (en) | 2017-10-19 | 2017-10-19 | The antenna system and control method of changeable external antenna |
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Family
ID=61077206
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107612584A (en) * | 2017-10-19 | 2018-01-19 | 环鸿电子（昆山）有限公司 | The antenna system and control method of changeable external antenna |
| CN114063709A (en) * | 2020-07-29 | 2022-02-18 | 广达电脑股份有限公司 | Electronic device and method for antenna switching |
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