CN207304552U - The antenna system of changeable external antenna - Google Patents
The antenna system of changeable external antenna Download PDFInfo
- Publication number
- CN207304552U CN207304552U CN201721371003.1U CN201721371003U CN207304552U CN 207304552 U CN207304552 U CN 207304552U CN 201721371003 U CN201721371003 U CN 201721371003U CN 207304552 U CN207304552 U CN 207304552U
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- antenna
- built
- external antenna
- external
- switching circuit
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Abstract
The utility model discloses 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 include 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
A kind of antenna system is the utility model is related to, more particularly to a kind of antenna system of changeable external antenna.
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 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 be used to controlling switching circuit 130 with switch the first built-in antenna 110 or the second built-in antenna 120 come into
Row transmission receives radiofrequency signal RFS.
However, when weather is bad, the delivery quality of radiofrequency signal RFS can be seriously affected, implies that the first built-in antenna 110
And second built-in antenna 120 communication quality it is all very poor, cause the micro computer signal MS that microcontroller 140 is 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 seriously affects 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.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of changeable external in view of the deficiencies of the prior art
The antenna system of antenna.
In order to solve above-mentioned technical problem, the utility model embodiment provides a kind of aerial system of changeable external antenna
System, including multiple built-in antennas, switching circuit, external antenna control circuit and 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.External antenna control connector couples external antenna control circuit and the second built-in antenna.Wherein, when external day
When wiring connector connects external antenna, external antenna control circuit transmits the control signal of the first logic level to switching circuit,
Switching circuit switches to external antenna and performs 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 is further included connects with door and switching switch, switching switch including the first pin and second
Foot, includes first input end, the second input terminal and output terminal with door；Micro computer signal is received with the first input end of door, with door
The second input terminal receive the control signal that is transmitted of external antenna control circuit, with door according to micro computer signal and control signal
And opposite produce outputs 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 pass through the first inductance coupling external antenna
Connector, when external antenna connector does not connect external antenna, voltage source is used to provide voltage to external antenna control electricity
Road；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.
A kind of wireless Wireless Router of changeable external antenna of the utility model embodiment offer, including multiple built-in antennas,
Switching circuit, external antenna control circuit, light-emitting device and external antenna connector.Multiple built-in antennas are included 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.External antenna control circuit couples switching circuit, for transmitting control signal to switching circuit.Outside
Connect antenna control connector coupling external antenna control circuit and the second built-in antenna.Light-emitting device is used for according to wireless Wireless Router
Communication quality and adjust glow color.Wherein, when external antenna connector connects external antenna, external antenna control circuit
The control signal of the first logic level is transmitted to switching circuit, switching circuit switches to external antenna and performs reception or transmission radio frequency
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.
The beneficial effects of the utility model are that the utility model can be by " when antenna system for a kind of antenna system
When external antenna control circuit transmits control signal to the switching circuit of the first logic level, switching circuit switches to external antenna
Perform the function of receiving or transmit radiofrequency signal." technical characteristic, the antenna system of changeable external antenna of the invention can be with
When weather is bad or veil influences to cause communication quality bad, built-in antenna is replaced to perform transceiving radio frequency by external antenna
The function of signal.In this way, when the communication quality of built-in antenna is bad, its communication quality is lifted by external antenna.
In order to be further understood that the feature of the utility model and technology contents, refering to below in connection with the utility model
Detailed description and attached drawing, but the attached drawing provided only provide with reference to and explanation use, not be used for the utility model is subject to
Limitation.
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 utility model embodiment.
Fig. 2 B are the truth table of the switching circuit of Fig. 2A.
Fig. 3 is that the antenna system by changeable external antenna of the utility model embodiment is applied to the outer of wireless Wireless Router
See schematic diagram.
Fig. 4 is the control method flow chart of the antenna system of the changeable external antenna of the utility model embodiment.
Embodiment
It is that to improve traditional antenna system 100 as shown in Figure 1 bad or veil seriously affects 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
110 or second built-in antenna 120 of line performs transceiving radio frequency signal RFS.It is bad or veil seriously affects communication matter in weather
During amount, traditional antenna system 100 can not effectively switch to the preferable built-in antenna of communication quality.Below will be new to this practicality
Technical solution used in effective lifting communication quality that type embodiment 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 utility model embodiment.
The antenna system 200 of changeable external antenna includes multiple built-in antennas, and multiple built-in antennas include at least the first built-in antenna
210th, the second built-in antenna 220.Antenna system 200 further includes switching circuit 230, microcontroller 240, external antenna control circuit
250th, external antenna connector 260 and voltage source 270.
Microcontroller 240 is controlled 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 switch 233 in switching circuit 230
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 switch 233 of output terminal 2313 with door 231.Include the with door 231
One input terminal 2311 and the second input terminal 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 terminal 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 opposite output signal OS that produces are to switching switch 233.In other words, it is used to pass with the output terminal 2313 of door 231
Send output signal OS output signal OS can be used for the handoff functionality for performing switching switch 233 to switching switch 233.
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 light by the light-emitting device (not shown) of antenna system 200, is reminded beyond user's palpus
Antenna is connect to lift the communication quality of antenna system 200, forces to perform the function of transceiving radio frequency signal RFS, 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
230 and second built-in antenna 220 of road, 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
The control signal CS that pressure is used to making external antenna control circuit 250 transmit logic high is to switching circuit 230 and door 230
Second input terminal 2312.The control signal CS of logic high opens the handoff functionality of switching switch 233.At this time, by microcontroller
The micro computer signal MS that device 240 is transmitted determines that switching switch 233 switches the first built-in antenna 210 or the second built-in antenna
220 perform the function of transceiving radio frequency signal RFS.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 terminal 2312.The control signal CS of logic low is used to make switching switch 233 switch to external antenna execution
The communication function of transceiving radio frequency signal RFS.For example, control signal CS can be the control signal CS of DC voltage.
External antenna control circuit 250 has 251 and second inductance 253 of resistance, one end ground connection of resistance 251, resistance 251
The other end couple one end of the second inductance 253, and control signal CS is transmitted extremely by the contact of 251 and second inductance 253 of resistance
With the second input terminal 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 the switching circuit of Fig. 2A.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
250 transmission logic highs control signal CS to door 231, for making switching switch 233 switch to the first built-in antenna 210
Or second built-in antenna 220 to receive or transmit radiofrequency signal RFS, at this time, switching switch 233 is controlled by microcontroller 240
Switch to the first built-in antenna 210 or the second built-in antenna 220 performs the function of transceiving radio frequency signal RFS.When the first built-in day
When the communication quality of 210 or second built-in antenna 220 of line is all bad, external day can be connected by external antenna connector 260
Line, at this time, 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 utility model embodiment is applied to wireless point
Enjoy the appearance diagram of device.Wireless Wireless Router 300 includes at least the first built-in antenna 310, the second built-in antenna 320, 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,
To make the communication quality of indoor everywhere keep excellent.When the first built-in antenna 310 and the second built-in antenna 320 are directed toward interior
Every nook and cranny caused by communication quality it is all bad when, external antenna can be connected by external antenna connector 360, forced by outer
Connect the function that antenna performs transceiving radio frequency signal RFS.In addition, when indoor communication quality 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 external antenna connector 360.
It is the antenna system of the changeable external antenna of the utility model embodiment please refer to Fig. 2A and Fig. 4, Fig. 4
Control method flow chart.In step S405, by built-in antenna transceiving radio frequency signal RFS, the switching first of switching circuit 230 is built-in
210 or second built-in antenna 220 of antenna is to receive or transmit radiofrequency signal RFS.In step S410, electricity is controlled by external antenna
Control signal CS is transmitted to switching circuit 230 in road 250.In step S415, judge whether to connect external antenna, if so, into
Step S420, if it is not, entering step S425.In the step s 420, it is external when external antenna connector 260 connects external antenna
Antenna controling circuit 250 transmits the control signal CS of logic low to switching circuit 230, the control signal CS of logic low
The function of receiving or transmit radiofrequency signal RFS is performed for making switching circuit 230 switch to external antenna.In step S425,
When external antenna connector 260 is without connection external antenna, external antenna control circuit 250 transmits the control letter of logic high
Number CS is used to make switching circuit 230 switch to the first built-in antenna to switching circuit 230, the control signal CS of logic high
210 or second built-in antenna 220 to receive or transmit radiofrequency signal RFS.
In conclusion the antenna system of the changeable external antenna of the utility model embodiment, which has, can connect external day
The external antenna connector of line, external antenna connector can be when the communication quality of built-in antenna be all bad, there is provided external day
Line enforces the function of transceiving radio frequency signal.In addition, by the antenna system of above-mentioned changeable external antenna, in general nothing
Only need to install additional to substitute with door, voltage source and external antenna control circuit in line Wireless Router to be performed in switching by microcontroller
The communication function of antenna is built, and the program code of microcontroller need not be changed, therefore, can effectively reduce cost.Separately
Outside, the number that switching switch switches built-in antenna at random is reduced, can be with the service life of extension antenna system.
Content disclosed above is only the preferred possible embodiments of the utility model, not thereby limits the utility model
Claims protection domain, so every equivalence techniques for being done with the utility model specification and accompanying drawing content becomes
Change, in the protection domain of the claims for being both contained in the utility model.
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, couples 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 further 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 terminal；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 opposite produce one and output signal to the switching switch, the output signal, which is used to switching described first, to be connect
Foot 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 is by external antenna connector described in one first inductance coupling, 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, couples 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. wireless Wireless Router according to claim 8, 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 switch to first built-in antenna or second built-in antenna and are believed with receiving or transmitting the radio frequency
Number.
10. wireless Wireless Router according to claim 9, it is characterised in that the control signal of the first logic level is
The control signal of logic low；The control signal of second logic level is believed for the control of logic high
Number.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721371003.1U CN207304552U (en) | 2017-10-19 | 2017-10-19 | The antenna system of changeable external antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721371003.1U CN207304552U (en) | 2017-10-19 | 2017-10-19 | The antenna system of changeable external antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207304552U true CN207304552U (en) | 2018-05-01 |
Family
ID=62273798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721371003.1U Active CN207304552U (en) | 2017-10-19 | 2017-10-19 | The antenna system of changeable external antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207304552U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110781696A (en) * | 2018-07-27 | 2020-02-11 | 日本电产三协株式会社 | Non-contact communication module and card reader |
-
2017
- 2017-10-19 CN CN201721371003.1U patent/CN207304552U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110781696A (en) * | 2018-07-27 | 2020-02-11 | 日本电产三协株式会社 | Non-contact communication module and card reader |
| CN110781696B (en) * | 2018-07-27 | 2023-10-31 | 日本电产三协株式会社 | Non-contact communication module and card reader |
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