CN206313764U - Electronic equipment and its radiofrequency signal control circuit - Google Patents
Electronic equipment and its radiofrequency signal control circuit Download PDFInfo
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- CN206313764U CN206313764U CN201621467983.0U CN201621467983U CN206313764U CN 206313764 U CN206313764 U CN 206313764U CN 201621467983 U CN201621467983 U CN 201621467983U CN 206313764 U CN206313764 U CN 206313764U
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Abstract
The utility model discloses a kind of radiofrequency signal control circuit, it includes the transceiver module, signal enhancing module, the antenna that are sequentially connected, and transceiver module, the first choice switch, power amplifier, the second selecting switch and antenna in signal enhancing module are in turn connected to form signal launching circuit；Antenna, the second selecting switch, low-noise amplifier, first choice switch and transceiver module in signal enhancing module are in turn connected to form signal receiving circuit；Comparator is connected between transceiver module and switch control unit；Switch control unit connection first choice switch, the second selecting switch are with control selections Continuity signal launching circuit or signal receiving circuit.The circuit of the utility model radiofrequency signal control circuit is simple, and signal transmitting and receiving stabilization, the conducting of launching circuit or signal receiving circuit is not influenceed by the control of CPU, is easily installed in different types of electronic equipment.Correspondingly, the electronic equipment with above-mentioned radiofrequency signal control circuit equally has the effect above.
Description
Technical field
The utility model is related to the technical field of electronic equipment, more particularly to a kind of electronic equipment and its radiofrequency signal control
Circuit.
Background technology
WiFi (Wireless Fidelity, adopting wireless fidelity technology), i.e. IEEE802.11 agreements, its be a kind of short distance without
Line transmission technology, can support the radio signal of linking Internet in certain scope.WiFi networks are obtained in recent years
Development at full speed and popularization are arrived, wireless WiFi nets have turned into indispensable instrument in study, amusement, work.Particular by
The portable electric appts such as mobile intelligent terminal, panel computer, WiFi networks can realize many new applications.
In the prior art, the WiFi transceiver of mobile terminal includes switch control unit, launching circuit and reception loop, opens
Closing control unit is used for selective Continuity signal launching circuit or signal receiving circuit, the action of switch control unit be not by
WiFi transceiver is controlled in itself, but is come by the CUP (Central Processing Unit, central processing unit) of mobile terminal
Control, specifically, GPIO (the General Purpose Input Output, universal input/defeated of switch control unit and CPU
Go out) interface electrical connection, and the control of switch control unit selectivity Continuity signal launching circuit or signal receiving circuit need to be patrolled
Volume be written in the software program of CPU, when production firm changes different WiFi transceivers to the mobile terminal of former money, it is necessary to
Write the software program of CPU again according to new WiFi transceiver, very big inconvenience is brought to the replacing of WiFi transceiver.
Utility model content
The utility model provides a kind of electronic equipment and its radiofrequency signal control circuit, to solve to work as production in the prior art
Manufacturer is when changing different WiFi transceivers to the mobile terminal of former money, it is necessary to write CPU again according to new WiFi transceiver
Software program, bring the technical problems such as very big inconvenience to the replacing of WiFi transceiver.
In order to solve the above technical problems, the utility model uses a kind of technical scheme：A kind of radiofrequency signal control electricity is provided
Road, it includes the transceiver module, signal enhancing module, the antenna that are sequentially connected, signal enhancing module include determine first choice switch,
Second selecting switch, low-noise amplifier, power amplifier, comparator and switch control unit, wherein,
Transceiver module, first choice switch, power amplifier, the second selecting switch and antenna are in turn connected to form signal
Launching circuit；
Antenna, the second selecting switch, low-noise amplifier, first choice switch transceiver module are in turn connected to form signal and connect
Withdraw road；
Comparator is connected to be determined between transceiver module and switch control unit；
Switch control unit connection first choice switch, the second selecting switch are with control selections Continuity signal launching circuit
Or signal receiving circuit.
In certain embodiments, the signal enhancing module also include be connected to the transceiver module and the comparator it
Between directional coupler, the directional coupler includes：
Coupling unit, coupling unit includes input, straight-through end, coupled end and isolation end, input connection transmitting-receiving mould
Block, leads directly to end connection first choice switch；
First resistor, is connected between ground terminal and isolation end；
Second resistance, is connected between ground terminal and coupled end；
3rd resistor, is connected between comparator and coupled end.
In certain embodiments, radiofrequency signal control circuit also includes the detection being connected between 3rd resistor and comparator
Device.
In certain embodiments, the resistance of first resistor is 50 ohm.
In certain embodiments, transceiver module is wifi module, bluetooth module or ZigBee module.
In certain embodiments, signal enhancing module is integrated in a chip.
In certain embodiments, transceiver module and signal enhancing module are integrated in a chip.
In order to solve the above technical problems, the utility model also uses another technical scheme：A kind of electronic equipment is provided, its
Circuit is controlled including above-mentioned radiofrequency signal.
The utility model beneficial effect is：Prior art is different from, the utility model provides a kind of electronic equipment and its penetrates
Frequency signal control circuit, the intensity of the transmission signal that radiofrequency signal control circuit is sent by using comparator to transceiver module is entered
Row compares, comparator connect compare the intensity of transmission signal more than or less than comparator preset value when, trigger switch control
Unit selection controls Continuity signal launching circuit or signal receiving circuit, and circuit is simple, signal transmitting and receiving stabilization, signal launching circuit
Or the conducting of signal receiving circuit is not influenceed by the control of CPU, is easily installed in different types of electronic equipment.Correspondingly, have
The electronic equipment for having above-mentioned radiofrequency signal control circuit equally has the effect above.
Brief description of the drawings
Its example embodiment is described in detail by referring to accompanying drawing, further feature of the present utility model and advantage will become more
Plus substantially.
Fig. 1 is the utility model radiofrequency signal control embodiment connection diagram of circuit one.
Fig. 2 is the utility model radiofrequency signal control another embodiment connection diagram of circuit.
Fig. 3 is the structural representation of the directional coupler in the radiofrequency signal control circuit of Fig. 2.
Specific embodiment
Example embodiment is described more fully with referring now to accompanying drawing.However, example embodiment can be with various shapes
Formula is implemented, and is not understood as limited to implementation method set forth herein.Conversely, thesing embodiments are provided so that this practicality is new
The design of example embodiment fully and completely, and will comprehensively be conveyed to those skilled in the art by type.For convenience or
It is clear, may exaggerate, omit or be schematically illustrated in the thickness and size of every layer shown in accompanying drawing and schematically illustrate phase
Close the quantity of element.In addition, the size of element not exclusively reflects actual size, and related elements quantity incomplete reaction reality
Border quantity.Identical reference represents same or similar structure in figure.
Additionally, described feature, structure can be combined in one or more implementation methods in any suitable manner.
In the following description, there is provided many details fully understand so as to be given to implementation method of the present utility model.However,
One of ordinary skill in the art would recognize that, there is no one or more in the specific detail, or using other structures, constituent element
Deng, it is also possible to put into practice the technical solution of the utility model.In other cases, it is not shown in detail or describes known features or behaviour
Make to avoid fuzzy the utility model.
In description of the present utility model, it is to be understood that：" multiple " includes two and two or more, unless otherwise bright
It is really specific to limit.The words such as " first ", " second " occurred in each element title are not that the priority that restriction element occurs is suitable
Sequence, but for convenience of element name, clearly distinguish each element so that description is more succinct.It should be understood that when we claim element quilt
When ' attach ' to another element, it can be directly connected to other elements, or can also there is intermediary element.Additionally, here
" connection " for using can include wireless connection or electrical connection.
Fig. 1 is referred to, Fig. 1 is the utility model radiofrequency signal control embodiment connection diagram of circuit one.This practicality is new
Type provides a kind of radiofrequency signal control circuit, and it includes the transceiver module 10, signal enhancing module 20, the antenna 30 that are sequentially connected.
Signal enhancing module 20 includes that first choice switchs the 21, second selecting switch 22, low-noise amplifier 23, power and puts
Big device 24, comparator 25 and switch control unit 26.
Transceiver module 10, first choice switch 21, power amplifier 24, the second selecting switch 22 and antenna 30 connect successively
Connect to form signal launching circuit, on the other hand, the transmission signal that transceiver module 10 sends sequentially pass through first choice switch 21,
Sent to external electronic device after power amplifier 24, the second selecting switch 22 and antenna 30.The selection of antenna 30, second is opened
Close 22, low-noise amplifier 23, first choice switch 21 transceiver modules 10 be in turn connected to form signal receiving circuit, in other words and
Speech, the reception signal that antenna 30 is received sequentially passes through the second selecting switch 22, low-noise amplifier 23, first choice switch 21
And read for installing radiofrequency signal control circuit electronic equipment internal element in itself after transceiver module 10.Comparator 25 connects
It is connected between transceiver module 10 and switch control unit 26.The connection first choice of switch control unit 26 switch 21, second is selected
With control selections Continuity signal launching circuit or signal receiving circuit, specifically, first choice switch 21, second is selected switch 22
Select switch 22 has signal receiving end and signal transmitting terminal respectively, and switch control unit 26 can be such that receiving terminal is selected with signal transmitting terminal
Selecting property switches, so that signal launching circuit is selectively turned on signal receiving circuit.Low-noise amplifier 23 is used to increase
The sensitivity of the reception signal transmitted by antenna 30, power amplifier 24 is used to increase the transmission signal transmitted by transceiver module 10
Power.
The transmission signal that the radiofrequency signal control circuit of the present embodiment is sent by using comparator 25 to transceiver module 10
Intensity be compared, and according to comparative result come Continuity signal launching circuit or signal receiving circuit.Specifically, radiofrequency signal
Control circuit original state is in the conduction state in signal reception state, i.e. signal receiving circuit, is received in comparator 25
The intensity of transmission signal more than comparator 25 preset value when, the control first choice of trigger switch control unit 26 switch 21 and the
The Continuity signal launching circuit of two selecting switch 22；Received in comparator 25 transmission signal intensity no more than comparator 25 it is pre-
If during value, the control first choice of trigger switch control unit 26 switch 21 and the Continuity signal of the second selecting switch 22 receive loop.
The radiofrequency signal control circuit of the present embodiment is simple, signal transmitting and receiving stabilization, signal launching circuit or signal receiving circuit
Conducting is not influenceed by the control of CPU, is easily installed in different types of electronic equipment.
It is the utility model radiofrequency signal control another embodiment connection diagram of circuit to refer to Fig. 2 and Fig. 3, Fig. 2.Figure
3 is the structural representation of the directional coupler in the radiofrequency signal control circuit of Fig. 2.Signal enhancing module 20 of the present utility model
Also include the directional coupler 27 being connected between the transceiver module 10 and the comparator 25, the directional coupler 27 is used for
The transmission signal that transceiver module 10 sends is allocated, specifically, transmission signal can be pressed 1 by directional coupler 27：10
Ratio is allocated, and transmission signal major part is flowed to first choice switch 21, and fraction flows to comparator 25, for comparator
The transmission signal of 25 pairs of fractions is compared.Certainly, directional coupler 27 can also according to actual needs by transmission signal
It is allocated in other ratios.
Directional coupler 27 includes coupling unit 271, first resistor 272, second resistance 273,3rd resistor 274.Coupling
Unit 271 includes input 275, straight-through end 276, coupled end 277 and isolation end 278, and input 275 connects with transceiver module 10
Connect, straight-through end 276 is connected with first choice switch 21；First resistor 272 is connected between ground terminal and isolation end 278；Second electricity
Resistance 273 is connected between ground terminal and coupled end 277；3rd resistor 274 is connected between comparator 25 and coupled end 277.
The resistance of first resistor 272 is preferably 50 ohm, and second resistance 273, the resistance of 3rd resistor 274 are believed according to transmitting
Number actually required allocation proportion is selected.Transceiver module 10 is wifi module, bluetooth module or ZigBee module.
The radiofrequency signal control circuit of the present embodiment further includes wave detector 28 and power supply 40, and wave detector 28 is connected to the
Between three resistance 274 and comparator 25.Wave detector 28 is used to be demodulated to stabilization from by the transmission signal that directional coupler 27 flows out
DC pulse signal, so that comparator 25 is carried out according to the size of DC pulse signal intensity with comparator 25 preset value itself
Compare, whether make the transmission signal of the indirect judgement transceiver module 10 of comparator 25 more than comparator 25 preset value itself.Power supply 40
It is connected with signal enhancing module 20, for being powered to signal enhancing module 20.Wave detector 28 can be RF peak detection
Device.
The radiofrequency signal control circuit of the present embodiment is sent by using the reasonable distribution transceiver module 10 of directional coupler 27
Transmission signal, improve transmission signal emissivity.Because the carrier frequency of transmission signal is too high, the radiofrequency signal of the present embodiment
Transmission signal is demodulated to control circuit the DC pulse signal of stabilization by using wave detector 28, improves what comparator 25 judged
Sensitivity, further improves the accuracy of the selection Continuity signal launching circuit of switch control unit 26 or signal receiving circuit.
Signal enhancing module 20 is integrated in a chip.Can also be in other embodiments signal enhancing module 20 and receipts
Hair module 10 is integrated in a chip.
The utility model also provides a kind of electronic equipment, and it includes above-mentioned radiofrequency signal control circuit.Correspondingly, comprising
Also there is the electronic equipment of radiofrequency signal control circuit above-mentioned radiofrequency signal to control the various effects of circuit.
The preferred embodiment of this method is these are only, the scope of the claims of this method is not thereby limited, it is every using we
Equivalent structure or equivalent flow conversion that method specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is similarly included in the scope of patent protection of this method.
Claims (8)
1. a kind of radiofrequency signal controls circuit, it is characterised in that the radiofrequency signal control circuit includes the transmitting-receiving being sequentially connected
Module, signal enhancing module, antenna, the signal enhancing module include that first choice switch, the second selecting switch, low noise are put
Big device, power amplifier, comparator and switch control unit, wherein,
The transceiver module, first choice switch, the power amplifier, second selecting switch and the antenna
It is in turn connected to form signal launching circuit；
The antenna, second selecting switch, the low-noise amplifier, the first choice switch the transceiver module according to
Secondary connection forms signal receiving circuit；
The comparator is connected between the transceiver module and the switch control unit；
It is described with control selections conducting that the switch control unit connects the first choice switch, second selecting switch
Signal launching circuit or signal receiving circuit.
2. radiofrequency signal according to claim 1 controls circuit, it is characterised in that the signal enhancing module also includes connecting
The directional coupler between the transceiver module and the comparator is connected to, the directional coupler includes：
Coupling unit, the coupling unit includes input, straight-through end, coupled end and isolation end, and the input connects institute
Transceiver module is stated, the straight-through end connects the first choice switch；
First resistor, is connected between ground terminal and the isolation end；
Second resistance, is connected between the ground terminal and the coupled end；
3rd resistor, is connected between the comparator and the coupled end.
3. radiofrequency signal according to claim 2 controls circuit, it is characterised in that the radiofrequency signal control circuit is also wrapped
Include the wave detector being connected between the 3rd resistor and the comparator.
4. radiofrequency signal according to claim 2 controls circuit, it is characterised in that the resistance of the first resistor is 50 Europe
Nurse.
5. radiofrequency signal according to claim 1 control circuit, it is characterised in that the transceiver module be wifi module,
Bluetooth module or ZigBee module.
6. the radiofrequency signal according to claim 1-5 any one controls circuit, it is characterised in that the signal enhancing mould
Block is integrated in a chip.
7. according to claim 1-5 any one radiofrequency signal control circuit, it is characterised in that the transceiver module and
The signal enhancing module is integrated in a chip.
8. a kind of electronic equipment, it is characterised in that the electronic equipment includes the radio frequency letter described in claim 1-7 any one
Number control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621467983.0U CN206313764U (en) | 2016-12-29 | 2016-12-29 | Electronic equipment and its radiofrequency signal control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621467983.0U CN206313764U (en) | 2016-12-29 | 2016-12-29 | Electronic equipment and its radiofrequency signal control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206313764U true CN206313764U (en) | 2017-07-07 |
Family
ID=59248423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621467983.0U Active CN206313764U (en) | 2016-12-29 | 2016-12-29 | Electronic equipment and its radiofrequency signal control circuit |
Country Status (1)
| Country | Link |
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| CN (1) | CN206313764U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110971266A (en) * | 2019-12-04 | 2020-04-07 | 惠州Tcl移动通信有限公司 | WIFI sensitivity enhancing device and electronic equipment |
| CN111510179A (en) * | 2019-01-30 | 2020-08-07 | 中国移动通信有限公司研究院 | Indoor division antenna, antenna system and control method |
| CN113225100A (en) * | 2021-05-21 | 2021-08-06 | 湖南基石通信技术有限公司 | Radio frequency module for WiFi wireless ad hoc network and control method thereof |
-
2016
- 2016-12-29 CN CN201621467983.0U patent/CN206313764U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111510179A (en) * | 2019-01-30 | 2020-08-07 | 中国移动通信有限公司研究院 | Indoor division antenna, antenna system and control method |
| CN110971266A (en) * | 2019-12-04 | 2020-04-07 | 惠州Tcl移动通信有限公司 | WIFI sensitivity enhancing device and electronic equipment |
| CN113225100A (en) * | 2021-05-21 | 2021-08-06 | 湖南基石通信技术有限公司 | Radio frequency module for WiFi wireless ad hoc network and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210830 Address after: 518000 workshop 201, DAFUYUAN Industrial Park, No. 381, Juling old village, Jutang community, Fucheng street, Longhua District, Shenzhen, Guangdong Province Patentee after: Shenzhen Water World Information Co.,Ltd. Address before: 563000 floor 2, plant 4, high tech Industrial Park, Xinpu Economic Development Zone, Xinpu new area, Zunyi City, Guizhou Province Patentee before: GUIZHOU FORTUNESHIP TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right |