CN207460164U - A kind of circuit for enhancing radio signal transmission stability - Google Patents
A kind of circuit for enhancing radio signal transmission stability Download PDFInfo
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- CN207460164U CN207460164U CN201721574874.3U CN201721574874U CN207460164U CN 207460164 U CN207460164 U CN 207460164U CN 201721574874 U CN201721574874 U CN 201721574874U CN 207460164 U CN207460164 U CN 207460164U
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Abstract
The utility model discloses a kind of circuits for enhancing radio signal transmission stability, data input pin DATA_OUT connects one end of resistance two and the DATA ends of wirelessly transferred chip respectively, the other end of resistance two connects one end of capacitance five and one end and the ground connection of capacitance six respectively, XTLOUT end of the other end of capacitance five respectively with 1 foot of no source crystal and wirelessly transferred chip is connected, and the XTLIN ends of the other end of capacitance six respectively with 3 feet of no source crystal and wirelessly transferred chip are connected；The other end of resistance one is connected with one end of inductance one, the one end of the other end of inductance one respectively with the PAOUT ends of wirelessly transferred chip and capacitance three is connected, the other end of capacitance three is connected with one end of inductance two, and the other end of inductance two is connected respectively with one end of capacitance four and transmitting antenna.The utility model increases the stability of equipment transmission 433.92MHZ frequency range wireless datas, reduces design difficulty and complicated impedance matching process.
Description
Technical field
The utility model is related to wireless technical fields, and in particular to one kind enhances radiofrequency signal based on 433.92MHZ frequency ranges
The circuit of transmission stability.
Background technology
Wireless network is a kind of moveable communication network, can provide its required communication anywhere or anytime for client
Service.Without having set up circuit in advance, the place that can not covered cable network easily covers, these advantages are that have
Gauze network is incomparable.The service content provided with network is more gradually enriched, and communication terminal information processing capacity also adds therewith
By force, the services such as mobile office, mobile phone shopping are also finally come true by illusion.Commercial wireless network has welcome the third generation, rear three
The digital communication era in generation meets people to the demand for working, living with amusement, and various types of communication capacity of equipment, which is obtained for, to be carried
It is high.
Wireless communication can be carried out propagating this feature in free space and realized in space using electromagnetic wave model
Information exchange.In recent years, wireless communication technique has obtained development at full speed, and the field applied also has obtained constantly widening,
And wireless transmission is more and more extensive applied to data transmission, especially communicates in the wireless device of 433.92MHZ frequency ranges；Transmission
Stability is the basic of the meaning of guarantee wireless data transmission.
Utility model content
The purpose of this utility model is to provide a kind of stability for increasing equipment transmission 433.92MHZ frequency range wireless datas,
Reduce the circuit of design difficulty and the enhancing radio signal transmission stability of complicated impedance matching process.
In order to solve the problems existing in background technology, the utility model is using following technical scheme：A kind of enhancing is penetrated
The circuit of frequency stable signal transmission, it includes one-resistance of resistance, two R1-R2, one-capacitance of capacitance, six C1-C6, inductance one-electricity
Feel two L1-L2, wirelessly transferred chip U1 and connect one end of two R2 of resistance respectively without source crystal Y1, data input pin DATA_OUT
With the DATA ends of wirelessly transferred chip U1, the other end of two R2 of resistance connects the one of six C6 of one end and capacitance of five C5 of capacitance respectively
It end and being grounded, the XTLOUT ends of the other end of five C5 of capacitance respectively with 1 foot of no source crystal Y1 and wirelessly transferred chip U1 are connected,
XTLIN end of the other end of six C6 of capacitance respectively with 3 feet of no source crystal Y1 and wirelessly transferred chip U1 is connected, and without source crystal
2 feet and 4 feet of Y1 are grounded；The vdd terminal of wirelessly transferred chip U1 respectively with one end of one R1 of resistance, one C1 of capacitance one end,
One end of two C2 of capacitance and the connection of power supply VCC ends, the other end of two C2 of one C1 of capacitance and capacitance are grounded, and one R1's of resistance is another
One end is connected with one end of one L1 of inductance, the other end of one L1 of inductance respectively with the PAOUT ends of wirelessly transferred chip U1 and capacitance
One end connection of three C3, the other end of three C3 of capacitance is connected with one end of two L2 of inductance, the other end of two L2 of inductance respectively with electricity
The one end for holding four C4 is connected with transmitting antenna ANT1, and the other end of four C4 of capacitance and the VSS ends of wirelessly transferred chip U1 connect
Ground.
As further improvement of the utility model；The wirelessly transferred chip U1 is the remote hair of SYN117 models
Core shooting piece.
As further improvement of the utility model；One L1 of inductance is high-frequency suppressing inductance.
As further improvement of the utility model；Described without source crystal Y1 is 13.56MHZ without source crystal.
As further improvement of the utility model；Three C3 of capacitance and two L2 of inductance is of adjustment frequency transmitting
With circuit.
After adopting the above technical scheme, the utility model has the advantages that：
1st, the stability of enhancing 433.92MHZ wireless transmission frequency ranges, below transmission power+10dbm, modulation speed can be realized
Below rate 20kbps, wireless transmission distance (spacious distance) is in more than 300m；
2nd, the stability of equipment transmission 433.92MHZ frequency range wireless datas is increased；
3rd, the impedance matching process of design difficulty and complexity is reduced.
Description of the drawings
It in order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the circuit diagram of embodiment provided by the utility model.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and specifically
The utility model is further elaborated in embodiment.It should be appreciated that the specific embodiments described herein are only used
To explain the utility model, it is not used to limit the utility model.
Referring to Fig. 1, present embodiment uses following technical scheme：A kind of enhancing radio signal transmission stability
Circuit, it includes one-resistance of resistance, two R1-R2, one-capacitance of capacitance, six C1-C6, one-inductance of inductance, two L1-L2, wireless transmission
Chip U1 and without source crystal Y1, data input pin DATA_OUT connect one end of two R2 of resistance and wirelessly transferred chip U1 respectively
DATA ends, the other end of two R2 of resistance connect one end of six C6 of one end and capacitance of five C5 of capacitance and ground connection, five C5 of capacitance respectively
XTLOUT end of the other end respectively with 1 foot of no source crystal Y1 and wirelessly transferred chip U1 be connected, the other end of six C6 of capacitance
The XTLIN ends with 3 feet of no source crystal Y1 and wirelessly transferred chip U1 are connected respectively, and 2 feet without source crystal Y1 and 4 feet connect
Ground；The vdd terminal of wirelessly transferred chip U1 respectively with one end of one end of one R1 of resistance, one end of one C1 of capacitance, two C2 of capacitance with
And the connection of power supply VCC ends, the other end of two C2 of one C1 of capacitance and capacitance are grounded, the other end of one R1 of resistance is with one L1's of inductance
One end connects, and the one end of the other end of one L1 of inductance respectively with three C3 of the PAOUT ends of wirelessly transferred chip U1 and capacitance be connected, electric
The other end for holding three C3 is connected with one end of two L2 of inductance, the other end of two L2 of inductance respectively with one end of four C4 of capacitance and transmitting
Antenna ANT1 connections, and the other end of four C4 of capacitance and the VSS ends of wirelessly transferred chip U1 are grounded.
The operation principle of the utility model is：
Fast wireless transmissions technology is realized using the SYN117 wirelessly transferred chips U1 of SYNOXO companies, it can be achieved that really
" data input, wireless to export " function.Its all tunings all can automatically realize in IC, transmission power stablize (it is maximum it is reachable+
10dbm), it can need to carry out necessary impedance matching according to actual circuit and can reach expected launching effect, modulation speed
Below rate 20kbps.
For power supply VCC between 1.8-3.6V, five C5 of capacitance, six C6 of capacitance (can bases for the matching capacitance of no source crystal Y1
Actual circuit is finely adjusted)；One R1 of resistance is the configuration resistance of adjustment transmission power；One L1 of inductance is high-frequency suppressing inductance；Electricity
Hold the match circuit (being finely adjusted according to actual circuit) that three C3 and two L2 of inductance are adjustment frequency transmitting；Transmitting antenna ANT1 exists
It is optimal for the antenna effects of 50 Ω impedances in present embodiment.
The utility model can be directly applied to need on the vehicle electronics of 433.92MHZ frequency range wireless transmissions, can
So that the transmission of wireless data is more stable.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned exemplary embodiment, and
And in the case of the spirit or essential attributes without departing substantially from the utility model, it can realize that this practicality is new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this practicality is new
The scope of type is indicated by the appended claims rather than the foregoing description, it is intended that will fall containing in the equivalent requirements of the claims
All changes in justice and scope are embraced therein.
Moreover, it will be appreciated that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
Using specification as an entirety, the technical solutions in each embodiment can also be properly combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (5)
1. it is a kind of enhance radio signal transmission stability circuit, which is characterized in that it include one-resistance of resistance two (R1-R2),
One-capacitance of capacitance six (C1-C6), one-inductance of inductance two (L1-L2), wirelessly transferred chip (U1) and without source crystal (Y1), data
Input pin DATA_OUT connects one end of resistance two (R2) and the DATA ends of wirelessly transferred chip (U1) respectively, resistance two (R2)
The other end connects one end of capacitance five (C5) and one end and the ground connection of capacitance six (C6), the other end difference of capacitance five (C5) respectively
Be connected with 1 foot of no source crystal (Y1) and the XTLOUT ends of wirelessly transferred chip (U1), the other end of capacitance six (C6) respectively with
3 feet of no source crystal (Y1) are connected with the XTLIN ends of wirelessly transferred chip (U1), and 2 feet without source crystal (Y1) and 4 feet connect
Ground；The vdd terminal of wirelessly transferred chip (U1) respectively with one end of resistance one (R1), one end of capacitance one (C1), capacitance two (C2)
One end and the connection of power supply VCC ends, the other end of capacitance one (C1) and capacitance two (C2) be grounded, resistance one (R1) it is another
End is connected with one end of inductance one (L1), the other end of inductance one (L1) respectively with the PAOUT ends of wirelessly transferred chip (U1) and
One end connection of capacitance three (C3), the other end of capacitance three (C3) is connected with one end of inductance two (L2), inductance two (L2) it is another
One end is connected respectively with one end of capacitance four (C4) and transmitting antenna (ANT1), and the other end of capacitance four (C4) and wireless transmission
The VSS ends of chip (U1) are grounded.
A kind of 2. circuit for enhancing radio signal transmission stability according to claim 1, which is characterized in that the nothing
Line transmission chip (U1) is the distance transmission chip of SYN117 models.
A kind of 3. circuit for enhancing radio signal transmission stability according to claim 1, which is characterized in that the electricity
One (L1) of sense is high-frequency suppressing inductance.
A kind of 4. circuit for enhancing radio signal transmission stability according to claim 1, which is characterized in that the nothing
Source crystal (Y1) is 13.56MHZ without source crystal.
A kind of 5. circuit for enhancing radio signal transmission stability according to claim 1, which is characterized in that the electricity
Hold the match circuit of three (C3) and inductance two (L2) for adjustment frequency transmitting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721574874.3U CN207460164U (en) | 2017-11-22 | 2017-11-22 | A kind of circuit for enhancing radio signal transmission stability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721574874.3U CN207460164U (en) | 2017-11-22 | 2017-11-22 | A kind of circuit for enhancing radio signal transmission stability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207460164U true CN207460164U (en) | 2018-06-05 |
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ID=62278000
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721574874.3U Active CN207460164U (en) | 2017-11-22 | 2017-11-22 | A kind of circuit for enhancing radio signal transmission stability |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111063184A (en) * | 2019-12-26 | 2020-04-24 | 海盐瑞科光电科技有限公司 | Human body induction wireless transmitter and receiver |
| CN111884737A (en) * | 2020-07-29 | 2020-11-03 | 苏州浪潮智能科技有限公司 | Anti-interference computer electronic communication system |
-
2017
- 2017-11-22 CN CN201721574874.3U patent/CN207460164U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111063184A (en) * | 2019-12-26 | 2020-04-24 | 海盐瑞科光电科技有限公司 | Human body induction wireless transmitter and receiver |
| CN111884737A (en) * | 2020-07-29 | 2020-11-03 | 苏州浪潮智能科技有限公司 | Anti-interference computer electronic communication system |
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