CN107612584A - 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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- CN107612584A CN107612584A CN201710980412.XA CN201710980412A CN107612584A CN 107612584 A CN107612584 A CN 107612584A CN 201710980412 A CN201710980412 A CN 201710980412A CN 107612584 A CN107612584 A CN 107612584A
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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 the first 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 the first 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 reception or transmission 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 the first external antenna connector.Multiple built-in antennas are extremely
Include the first built-in antenna and the second built-in antenna less, the first built-in antenna and the second built-in antenna are used to receiving or transmitting radio frequency
Signal.Switching circuit couples the first built-in antenna and the second built-in antenna, and switching circuit is used to switching the first built-in antenna or the
Two built-in antennas are to receive or transmit radiofrequency signal.External antenna control circuit couples switching circuit, for transmitting control signal
To switching circuit.One end coupling external antenna control circuit and switching circuit of first external antenna connector, the first external day
The other end of wiring connector is used to couple external antenna.Wherein, it is external when the first external antenna connector couples external antenna
Antenna controling circuit transmits the control signal of the first logic level to switching circuit, and switching circuit switches to external antenna execution and connect
Receive or transmit radiofrequency signal.
Further, when the first external antenna connector is not coupled to external antenna, external antenna control circuit passes
The control signal of the second logic level is sent to switching circuit, switching circuit switch to the first built-in antenna or the second built-in antenna with
Receive or transmit radiofrequency signal；Wherein external antenna is grounded antenna.
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 first input end, the second input, rf inputs, the first pin, the
Two pins and external antenna pin, first input end are used to receive control signal, and the second input is used to receive micro computer signal,
Rf inputs are used to receiving or transmitting radiofrequency signal, and the first pin couples the first built-in antenna, and the second pin is coupled in second
Build antenna；When the first external antenna connector connects external antenna, external antenna pin couples rf inputs and received and penetrates
Frequency signal；When the first external antenna connector is not coupled to external antenna, the first pin or the connection radio frequency input of the second pin
Hold and receive radiofrequency signal.
Further, antenna system still further comprises：Earthed circuit, earthed circuit are coupled to external antenna and first
External antenna connector, earthed circuit are used to receive leakage current；Earthed circuit has the second external antenna connector, the 3rd external
Antenna connector, electric capacity and the first inductance, one end of electric capacity couple one end of the second external antenna connector, the second external antenna
The other end of connector is used to couple external antenna, and the other end of electric capacity couples one end and first of the 3rd external antenna connector
One end of inductance, the other end ground connection of the first inductance, the other end of the 3rd external antenna connector are used to couple the first external day
The other end of wiring connector.
Further, external antenna is grounded antenna, directional antenna or dipole antenna.
Further, external antenna control circuit has voltage source, resistance and the second inductance, voltage source resistance
One end simultaneously provides voltage, and the other end of resistance couples one end of the second inductance, and the other end of the second inductance couples the first external day
Wiring connector and switching circuit.
Further, wherein first, second and third external antenna connector is sub-miniature A connector, sub-miniature C connector, BNC connector, M-
Type joints or P-type joints.
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, the first external antenna connector and light-emitting device.Multiple built-in antennas are comprised at least in first
Antenna and the second built-in antenna are built, the first built-in antenna and the second built-in antenna are used to receiving or transmitting radiofrequency signal.Switching electricity
Road couples the first built-in antenna and the second built-in antenna, switching circuit be used to switching the first built-in antenna or the second built-in antenna with
Receive or transmit radiofrequency signal.One end coupling external antenna control circuit and switching circuit of first external antenna connector, the
The other end of one external antenna connector is used to couple external antenna.Light-emitting device is used for the communication quality according to wireless Wireless Router
And adjust glow color.Wherein, when the first external antenna connector couples external antenna, external antenna control circuit transmission the
To switching circuit, switching circuit switches to external antenna and performs reception or transmission radiofrequency signal the control signal of one logic level.
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 the first external antenna connector.Multiple built-in antennas are extremely
Include the first built-in antenna and the second built-in antenna less.One end coupling external antenna control circuit of first external antenna connector
And switching circuit, the other end of the first external antenna connector are used to couple external antenna.Control method includes：By switching circuit
Switch the first built-in antenna or the second built-in antenna to receive or transmit radiofrequency signal；And transmitted by external antenna control circuit
Control signal is to switching circuit；Wherein, when the first external antenna joint couples 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；Wherein, when the first external antenna connector is not coupled to external antenna, external antenna control circuit transmits the second logic electricity
Flat control signal is to switching circuit, and switching circuit switches to the first built-in antenna or the second built-in antenna is penetrated with receiving or transmitting
Frequency 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 circuit diagram of the antenna system of another changeable external antenna of the embodiment of the present invention.
Fig. 2 C are the circuit diagram of the antenna system of the another changeable external antenna of the embodiment of the present invention.
Fig. 2 D are the truth table of Fig. 2 C 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.
Please refer to Fig. 2A and Fig. 2 B, Fig. 2A is the electricity of the antenna system of the changeable external antenna of the embodiment of the present invention
Lu Tu, Fig. 2 B are the circuit diagram of the antenna system of another changeable external antenna of the embodiment of the present invention.
In fig. 2, the antenna system 200 of changeable external antenna includes multiple built-in antennas, and multiple built-in antennas are at least
Including the first built-in antenna 210, the second built-in antenna 220.The antenna system 200 of changeable external antenna also includes switching circuit
230th, microcontroller 240, the external antenna connector 260 of external antenna control circuit 250 and first.When external antenna control circuit
250 not transmit control signal CS to switching circuit 230 when, microcontroller 240 can be controlled by the first built-in antenna 210 or the
Two built-in antennas 220 receive or transmitted radiofrequency signal RFS.In other words, the micro computer signal MS that microcontroller 240 is transmitted is used
The first built-in antenna 210 and the second built-in antenna 220 wherein communication quality preferably are switched in making switching circuit 230.
Switching circuit 230 include first input end 231, the second input 232, rf inputs 233, the first pin 236,
The pin 238 of external antenna pin 237 and second.First input end 231 is used to receive control signal CS.Second input 232 is used
In reception micro computer signal MS.Rf inputs 233 are used to receiving or transmitting radiofrequency signal RFS.First pin 236 coupling first
Built-in antenna 210.Second pin 238 couples the second built-in antenna 220.
In fig. 2b, the antenna system 201 of changeable external antenna includes external antenna 290, when the first external antenna connects
When connecing the coupling external antenna 290 of device 260, switching circuit 230 controls external antenna pin 237 to couple rf inputs 233 and simultaneously connect
Receive radiofrequency signal RFS.In fig. 2, when the first external antenna connector 260 is not coupled to external antenna 290, switching circuit
230 the first pins 236 of control or the second pin 238 coupling rf inputs 233 simultaneously receive radiofrequency signal RFS.In other words, when
When first external antenna connector 260 is not coupled to external antenna 290, switching circuit 230 is used to switch the first built-in antenna 210
Or second built-in antenna 220 to receive or transmit radiofrequency signal RFS.
One end coupling external antenna control circuit 250 and switching circuit 230 of first external antenna connector 260, first
The other end of external antenna connector 260 is used to connect external antenna 290.For example, when the first built-in antenna 210 and second
When the communication quality of built-in antenna 220 is smaller than a default value, turned by the light-emitting device (not shown) of antenna system 201 by green glow
Change feux rouges into, remind user to lift the communication quality of antenna system 201 with external antenna 290, force by external antenna 290
Transceiving radio frequency signal RFS function is performed, instead of the first built-in antenna 210 and the communication function of the second built-in antenna 220.It is external
Antenna controling circuit 250 is coupled to the external antenna connector 260 of switching circuit 230 and first, and external antenna control circuit 250 is used
In transmission control signal CS to switching circuit 230.For example, external antenna 290 can be grounded antenna.
When the first external antenna connector 260 connects external antenna 290, the transmission of external antenna control circuit 250 first
For the control signal CS of logic level to switching circuit 230, the control signal CS of the first logic level is, for example, logic low
Control signal CS, the control signal CS of logic low be used to making switching circuit 230 switch to external antenna 290 perform receive or
Radiofrequency signal RFS function is transmitted, in other embodiments, the control signal CS of the first logic level can be logic high
Control signal CS.Anti-, when the first external antenna connector 260 is without connection external antenna 290, external antenna control electricity
The control signal CS that the second logic level is transmitted on road 250 is, for example, to switching circuit 230, the control signal CS of the second logic level
The control signal CS of logic high, the control signal CS of logic high are built-in for making switching circuit 230 switch to first
The built-in antenna 220 of antenna 210 or second is to receive or transmit radiofrequency signal RFS, in other embodiments, the second logic level
Control signal CS can be the control signal CS of logic low.
Furthermore, it is understood that when external antenna control circuit 250 transmits the control signal CS of logic high control signal
When CS is to switching circuit 230, the micro computer signal MS that is transmitted by microcontroller 240 controls switching circuit 233 that radio frequency is defeated
Enter end 233 and switch to the first pin 236 or the second pin 238.The micro computer signal MS of logic low is used to switch to first
Pin 236 and by the first built-in antenna 210 with transceiving radio frequency signal RFS.The micro computer signal MS of logic high is used to cut
Shift to the second pin 238 and by the second built-in antenna 220 with transceiving radio frequency signal RFS.
Fig. 2 C are referred to, Fig. 2 C are the circuit diagram of the antenna system of the another changeable external antenna of the embodiment of the present invention.
The antenna system 202 of changeable external antenna includes the first built-in antenna 210, the second built-in antenna 220, switching circuit 230, micro-
Controller 240, the external antenna connector 260 of external antenna control circuit 250 and first, earthed circuit 270 and external antenna
292.Wherein, the first built-in antenna 210, the second built-in antenna 220, switching circuit 230, microcontroller 240, external antenna control
The external antenna connector 260 of circuit 250 and first refer to Fig. 2A and Fig. 2 B explanation, will not be repeated here.
Earthed circuit 270 is coupled to the external antenna joint 260 of external antenna 292 and first.Earthed circuit 270 has second
External antenna connector 262, the 3rd external antenna connector 265, the inductance 273 of electric capacity 271 and first, one end of electric capacity 271 are used
In the one end for connecting the second external antenna connector 262, the other end of the second external antenna connector 262 is used to couple external day
Line 292, the other end of electric capacity 271 couple one end of the 3rd external antenna joint 265 and one end of the first inductance 273, the first electricity
The other end ground connection of sense 273, the other end of the 3rd external antenna connector 265 are used to couple the first external antenna connector 260
The other end.For example, the capacitance of electric capacity 271 can be 10pF, and the inductance value of the first inductance 273 can be 47nH.
When the first external antenna joint 260 connects external antenna 292 by earthed circuit 270, earthed circuit 270 is used for
Leakage current is received, and leakage current is guided to ground, to avoid the internal circuit unit of antenna system 202 from being damaged.Implement one
In example, external antenna 292 can be grounded antenna, directional antenna or dipole antenna.
There is external antenna control circuit 250 resistance 251, the second inductance 253 and voltage source 255, voltage source 255 to connect electricity
One end of resistance 251 simultaneously provides voltage, and the other end of resistance 251 connects one end of the second inductance 253, by the electricity of resistance 251 and second
The tie point of sense 253 transmits control signal CS to switching circuit 230.Control signal CS can be the control signal of DC voltage
CS.The other end connection external antenna joint 260 and switching circuit 230 of second inductance 253.External antenna connector 260,262,
265 can be sub-miniature A connector, sub-miniature C connector, BNC connector, M-type joints or P-type joints.First built-in antenna 210 and second
Built-in antenna 220 can be grounded antenna, directional antenna or dipole antenna, and the present invention is not limited with the species of built-in antenna.Lift
For example, the resistance of resistance 251 can be 1M Ω, and the inductance value of the second inductance 253 can be 47nH.
Please refer to the truth table for the switching circuit that Fig. 2 B and Fig. 2 D, Fig. 2 D are Fig. 2 B.In figure 2d, when first is external
When antenna connector 260 is not connected with external antenna 290, to disconnect, external antenna control circuit 250 passes external antenna pin 237
Send the control signal CS of logic high the control signal CS of logic high is for making switching circuit 230 to switching circuit 230
The first built-in antenna 210 or the second built-in antenna 220 are switched to receive or transmit radiofrequency signal RFS, now, by microcontroller
240 perform transceiving radio frequency signal RFS to control switching circuit 230 to switch to the first built-in antenna 210 or the second built-in antenna 220
Function.The micro computer signal MS of logic low is used to switch to the first pin 236 and by the first built-in antenna 210 to receive
Radiofrequency signal RFS is sent out, now, the first pin 236 is connection, and the pin 238 of external antenna pin 237 and second is disconnection.Logic
The micro computer signal MS of high level is used to switch to the second pin 238 and by the second built-in antenna 220 with transceiving radio frequency signal
RFS, now, the second pin 238 are connection, and the first pin 236 and external antenna pin 237 are to disconnect.When the first built-in antenna
210 or second built-in antenna 220 communication quality it is all bad when, can be connected by the first external antenna connector 260 external
Antenna 290.External antenna control circuit 250 transmits the control signal CS of logic low to the first input of on-off circuit 230
End 231, the control signal CS of logic low penetrate for making switching circuit 230 switch to the execution transmitting-receiving of external antenna pin 237
Frequency signal RFS function, now, external antenna pin 237 are connection, and the first pin 236 and the second pin 238 are all to disconnect.
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, the first external day
Wiring connector 360 and light-emitting device 380.In general, when user uses mobile device positioned at interior, can be connected with WIFI patterns
Wireless Wireless Router 300, wireless Wireless Router 300 include multiple built-in antennas, and the direction pointed by each built-in antenna simultaneously differs,
Keep excellent with the communication quality of the indoor everywhere of order.When the first built-in antenna 310 and the second built-in antenna 320 point to interior
Each corner when causing communication quality all bad, external antenna can be connected by the first external antenna connector 360, forced by outer
Connect the function that antenna performs transceiving radio frequency signal RFS.In addition, when the communication quality of interior is bad, light-emitting device 380 can be by
Green light switchs to red light, to remind user to need external antenna being connected to the first 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 the first external antenna connector 260 connects
External antenna, if so, into step S420, if it is not, into step S425.In the step s 420, when the first external antenna connects
When device 260 connects external antenna, external antenna control circuit 250 transmits the control signal CS of logic low to switching circuit
230.In step S422, the control signal CS of logic low connects for making switching circuit 230 switch to external antenna execution
Receive or transmit radiofrequency signal RFS.In step S425, when external antenna connector 260 is without connection external antenna, external day
Line control circuit 250 transmits the control signal CS of logic high to switching circuit 230, and the control signal CS of logic high is used
The first built-in antenna 210 or the second built-in antenna 220 are switched to receive or transmit radiofrequency signal RFS in making switching circuit 230.
In step S430, low level micro computer signal MS is determined whether, if so, into step S435, if it is not, into step
S438.In step S435, by the transceiving radio frequency signal RFS of the first built-in antenna 210.In step S438, by the second built-in day
The transceiving radio frequency signal RFS of line 220.
In summary, the antenna system of the changeable external antenna of the embodiment of the present invention has external antenna connector, can
To provide user when the communication quality of built-in antenna is all bad, built-in antenna is replaced to perform transceiving radio frequency signal by external antenna
Function.In addition, in the wireless Wireless Router of in general, it is only necessary to install external antenna pin, external antenna connector, voltage source additional
And external antenna control circuit can substitute the communication function that switching built-in antenna is performed by microcontroller, and need not change micro-
Program code inside controller, therefore, it can effectively reduce cost.In addition, reduce the random switching built-in antenna of switching switch
Number, 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 first external antenna connector, one end couple the external antenna control circuit and the switching circuit, and the other end is used
In coupling an external antenna；
Wherein, when the first external antenna connector couples the external antenna, the external antenna control circuit transmission
The control signal of one first logic level to the switching circuit, the switching circuit switches to the external antenna and performs reception
Or the transmission radiofrequency signal.
2. antenna system according to claim 1, it is characterised in that when the first external antenna connector is not coupled to
During the external antenna, the control signal that the external antenna control circuit transmits one second logic level is electric to the switching
Road, the switching circuit switch to first built-in antenna or second built-in antenna and believed with receiving or transmitting the radio frequency
Number；Wherein described external antenna is grounded antenna.
3. antenna system according to claim 2, it is characterised in that the control signal of first logic level is patrolled for one
Collect low level control signal；The control signal of second logic level is the control signal of a logic high.
4. antenna system according to claim 1, it is characterised in that the switching circuit also include a first input end,
One second input, a rf inputs, one first pin, one second pin and an external antenna pin, first input
Hold for receiving the control signal, second input is used to receive a micro computer signal, and the rf inputs are used for
Receive or transmit the radiofrequency signal, first pin couples first built-in antenna, described in the second pin coupling
Second built-in antenna；When the first external antenna connector connects the external antenna, the external antenna pin coupling
The rf inputs simultaneously receive the radiofrequency signal；When the first external antenna connector is not coupled to the external antenna
When, first pin or second pin connect the rf inputs and receive the radiofrequency signal.
5. antenna system according to claim 1, it is characterised in that the antenna system includes：
One earthed circuit, the earthed circuit is coupled to the external antenna and the first external antenna connector, described to connect
Ground circuit is used to receive a leakage current；There is the earthed circuit one second external antenna connector, one the 3rd external antenna to connect
Connecing device, an electric capacity and one first inductance, one end of the electric capacity couples one end of the second external antenna connector, and described the
The other end of two external antenna connectors is used to couple the external antenna, and the other end coupling the described 3rd of the electric capacity is external
One end of antenna connector and one end of first inductance, the other end ground connection of first inductance, the 3rd external day
The other end of wiring connector is used for the other end for coupling the first external antenna connector.
6. antenna system according to claim 5, it is characterised in that wherein described external antenna is grounded antenna, pointed to
Antenna or dipole antenna.
7. antenna system according to claim 1, it is characterised in that the external antenna control circuit has a voltage
Source, a resistance and one second inductance, one end of resistance described in the voltage source simultaneously provide a voltage, the resistance it is another
End couples one end of second inductance, and the other end of second inductance couples the first external antenna connector and described
Switching circuit.
8. antenna system according to claim 1 or 5, it is characterised in that wherein described first, second and third external antenna connects
It is sub-miniature A connector, sub-miniature C connector, BNC connector, M-type joints or P-type joints to connect device.
9. 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 first external antenna connector, one end couple the external antenna control circuit and the switching circuit, and the other end is used
In coupling an external antenna；And
One light-emitting device, glow color is adjusted for the communication quality according to the wireless Wireless Router；
Wherein, when the first external antenna connector couples the external antenna, the external antenna control circuit transmission
To the switching circuit, the switching circuit switches to the external antenna execution and connect the control signal of first logic level
Receive or transmit the radiofrequency signal.
A kind of 10. control method of changeable external antenna, suitable for an antenna system, it is characterised in that the antenna system
It is multiple built-in including multiple built-in antennas, a switching circuit, an external antenna control circuit and one first external antenna connector
Antenna comprises at least one first built-in antenna and one second built-in antenna, one end coupling institute of the first external antenna connector
External antenna control circuit and the switching circuit are stated, the other end of the first external antenna connector is external for coupling one
Antenna, control method include：
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 first external antenna connector couples the external antenna, the external antenna control circuit transmission
The control signal of one first logic level to the switching circuit, the switching circuit switches to the external antenna and performs reception
Or the transmission radiofrequency signal；
Wherein, when the first external antenna connector is not coupled to the external antenna, the external antenna control circuit
The control signal of one second logic level is transmitted to the switching circuit, the switching circuit switches to first built-in antenna
Or second built-in antenna is to receive or transmit the radiofrequency signal.
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| CN201710980412.XA CN107612584A (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 |
|---|---|---|---|
| CN201710980412.XA CN107612584A (en) | 2017-10-19 | 2017-10-19 | The antenna system and control method of changeable external antenna |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108092689A (en) * | 2018-01-30 | 2018-05-29 | 中国人民解放军陆军工程大学 | Reference source automatic switching device |
| CN114118330A (en) * | 2020-08-28 | 2022-03-01 | 凌通科技股份有限公司 | Radio frequency identification integrated circuit and radio frequency identification code providing method |
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| CN207664981U (en) * | 2017-10-19 | 2018-07-27 | 环鸿电子（昆山）有限公司 | The antenna system of changeable external antenna and its wireless Wireless Router |
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| CN108092689A (en) * | 2018-01-30 | 2018-05-29 | 中国人民解放军陆军工程大学 | Reference source automatic switching device |
| CN114118330A (en) * | 2020-08-28 | 2022-03-01 | 凌通科技股份有限公司 | Radio frequency identification integrated circuit and radio frequency identification code providing method |
| CN114118330B (en) * | 2020-08-28 | 2024-01-26 | 凌通科技股份有限公司 | Integrated radio frequency identification integrated circuit and radio frequency identification code providing method |
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Application publication date: 20180119 |