CN106374868B - A kind of optimization circuit based on radio frequency transmission antenna transmission power - Google Patents
A kind of optimization circuit based on radio frequency transmission antenna transmission power Download PDFInfo
- Publication number
- CN106374868B CN106374868B CN201610783620.6A CN201610783620A CN106374868B CN 106374868 B CN106374868 B CN 106374868B CN 201610783620 A CN201610783620 A CN 201610783620A CN 106374868 B CN106374868 B CN 106374868B
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- Prior art keywords
- capacitor
- foot
- triode
- module
- inductance
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 28
- 238000005457 optimization Methods 0.000 title claims abstract description 13
- 239000003990 capacitor Substances 0.000 claims abstract description 43
- 230000005672 electromagnetic field Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
- H03H9/02—Details
- H03H9/02535—Details of surface acoustic wave devices
- H03H9/02818—Means for compensation or elimination of undesirable effects
- H03H9/02913—Measures for shielding against electromagnetic fields
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
- H03H9/25—Constructional features of resonators using surface acoustic waves
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- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Electromagnetism (AREA)
- Transmitters (AREA)
- Transceivers (AREA)
Abstract
The invention discloses a kind of optimization circuits based on radio frequency transmission antenna transmission power, belong to radio-frequency antenna technical field, including capacitor C5, resistance R2, triode Q2,433 module X1, capacitor C3, triode Q1, inductance L1, resistance R1, capacitor C1, capacitor C2, inductance L2, capacitor C4 and antennal interface H1, it solves in the application of 433 sound table resonators, since antenna placement location is not fixed the problem for causing data receiver unstable.
Description
Technical field
The invention belongs to radio-frequency antenna technical fields.
Background technique
Original spring antenna and 433 sound table resonance (hereinafter referred to as " 433 sound table ") device are close to PCB circuit board, spring antenna
It is horizontal above sound table resonator, be closer between spring antenna and 433 sound tables.433 sound tables at work can be to surrounding space
Emit a large amount of electromagnetic fields, the self-resonant frequency of electromagnetic field frequency and spring antenna is close, easily generates to the transmitting signal of antenna
Interference.
The direction of radio-frequency module antenna is all more arbitrarily, not provide aerial position specifically currently on the market, this
Kind way makes sensor receive the more random of signal change, and signal is very strong sometimes, can receive the data much higher than standard, has
When signal it is weaker, the standard that can only receive is even lower than the data of standard, is easy to cause data packetloss, bottom pour ladle.
Summary of the invention
The object of the present invention is to provide a kind of optimization circuits based on radio frequency transmission antenna transmission power, solve 433
In the application of sound table resonator, since antenna placement location is not fixed the problem for causing data receiver unstable.
To achieve the above object, the invention adopts the following technical scheme:
A kind of optimization circuit based on radio frequency transmission antenna transmission power, including capacitor C5, resistance R2, triode Q2,433
Module X1, capacitor C3, triode Q1, inductance L1, resistance R1, capacitor C1, capacitor C2, inductance L2, capacitor C4 and antennal interface H1,
1 foot of resistance R2 is signal input part, the 2 foot connecting triode Q2 of resistance R2 by capacitor C5 connection ground wire, 1 foot of resistance R2
Base stage, the emitter of triode Q2 connects ground wire, and the collector of triode Q2 connects 3 feet of 433 module X1,433 module X1
1 foot and 3 feet between be connected with capacitor C3, the collector of the 2 foot connecting triode Q1 of 433 module X1,2 feet of 433 module X1
Well by resistance R1 connection positive supply, 2 feet of the 1 foot connection inductance L1 of 433 module X1,1 foot of inductance L1 connects positive supply, electric
1 foot of sense L1 also passes through the capacitor C1 being connected in parallel and connects ground wire with capacitor C2, and 1 foot of 433 module X1 is connected by inductance L2
Connecing 1 foot of capacitor C4,2 feet of capacitor C4 connect antennal interface H1, and the emitter of triode Q1 connects 3 feet of 433 module X1, and three
1 foot of the collector connection capacitor C4 of pole pipe Q1.
The model NPN_9013 of the triode Q1.
The model NPN_2sc3356 of the triode Q2.
The model 27nH of the inductance L1；The model 22uH of inductance L2.
The 433 module X1 is 433 sound table resonators.
A kind of optimization circuit based on radio frequency transmission antenna transmission power of the present invention, solves humorous in 433 sound tables
It shakes in the application of device, since antenna placement location is not fixed the problem for causing data receiver unstable, the present invention is passed with data
Defeated stable advantage avoids the interference that data are transmitted in magnetic field, keeps data receiver rate higher more stable.
Detailed description of the invention
Fig. 1 is the principle of the present invention figure.
Specific embodiment
A kind of optimization circuit based on radio frequency transmission antenna transmission power as shown in Figure 1, including capacitor C5, resistance R2,
Triode Q2,433 module X1, capacitor C3, triode Q1, inductance L1, resistance R1, capacitor C1, capacitor C2, inductance L2, capacitor C4
With antennal interface H1, by capacitor C5 connection ground wire, 1 foot of resistance R2 is signal input part for 1 foot of resistance R2, the 2 of resistance R2
The base stage of foot connecting triode Q2, the emitter of triode Q2 connect ground wire, and the collector of triode Q2 connects 433 module X1's
3 feet, are connected with capacitor C3 between 1 foot and 3 feet of 433 module X1, the collector of the 2 foot connecting triode Q1 of 433 module X1,
2 feet of 433 module X1 pass through well resistance R1 connection positive supply, 2 feet of the 1 foot connection inductance L1 of 433 module X1, and the 1 of inductance L1
Foot connects positive supply, and 1 foot of inductance L1 also passes through the capacitor C1 being connected in parallel and connects ground wire with capacitor C2, and the 1 of 433 module X1
Foot passes through 1 foot of inductance L2 connection capacitor C4, and 2 feet of capacitor C4 connect antennal interface H1, the emitter connection 433 of triode Q1
3 feet of module X1,1 foot of the collector connection capacitor C4 of triode Q1.
The model NPN_9013 of the triode Q1.
The model NPN_2sc3356 of the triode Q2.
The model 27nH of the inductance L1；The model 22uH of inductance L2.
The 433 module X1 is 433 sound table resonators.
When work, data are inputted from 1 foot of current-limiting resistance R2 first, and are filtered by filter capacitor C5, and then signal passes through
Triode Q2 amplification is crossed, subsequently signal is sent into 433 module X1, then is amplified by the LC oscillating circuit that L1 and C3 are formed, subsequently
It is output to antennal interface by coupled capacitor C4, finally launches signal by antenna.
The present invention is in use, be in 1.2mm thickness by pcb board production, making spring antenna, impedance rate of change reduces everywhere, subtracts
Small signal reflex intensity, to enhance antenna transmission power.The present invention is in use, make growth rectangle for pcb board, and incite somebody to action
Pcb board is placed on the Far Left of the bottom of shell, and antenna is positive loaded on pcb board, the longer sides of the long rectangle of antenna and pcb board
In parallel, vertical with the shorter edge of long rectangle of pcb board, antenna lies low in being in same horizontal line, PCB on pcb board and with crystal oscillator
Without silk-screen below plate, pcb board is individually placed, avoids generating interference.
For the present invention when PCB is laid out, by antenna, nearby the component of easily interference antenna data transmission is totally placed in circuit
The other end of plate, the interference for avoiding magnetic field from transmitting data, spring antenna are close to PCB circuit board and are placed, and ensure that data are passing
The interference received when defeated is reduced to minimum.A kind of optimization circuit based on radio frequency transmission antenna transmission power of the present invention,
It solves in the application of 433 sound table resonators, since antenna placement location is not fixed the problem for causing data receiver unstable,
The present invention has the advantages that data are transmitted stable, avoid the interference that data are transmitted in magnetic field, make data receiver rate more Gao Gengwen
It is fixed.
Claims (5)
1. a kind of optimization circuit based on radio frequency transmission antenna transmission power, it is characterised in that: including capacitor C5, resistance R2, three
Pole pipe Q2,433 module X1, capacitor C3, triode Q1, inductance L1, resistance R1, capacitor C1, capacitor C2, inductance L2, capacitor C4 and
1 foot of antennal interface H1, resistance R2 are signal input part, 2 feet of resistance R2 by capacitor C5 connection ground wire, 1 foot of resistance R2
The base stage of connecting triode Q2, the emitter of triode Q2 connect ground wire, and the collector of triode Q2 connects the 3 of 433 module X1
Foot, is connected with capacitor C3 between 1 foot and 3 feet of 433 module X1, the collector of the 2 foot connecting triode Q1 of 433 module X1, and 433
2 feet of module X1 pass through resistance R1 connection positive supply, 2 feet of the 1 foot connection inductance L1 of 433 module X1, the 1 foot connection of inductance L1
Positive supply, 1 foot of inductance L1 also pass through the capacitor C1 being connected in parallel and connect ground wire with capacitor C2, and 1 foot of 433 module X1 passes through
1 foot of inductance L2 connection capacitor C4,2 feet of capacitor C4 connect antennal interface H1, and the emitter of triode Q1 connects 433 module X1
3 feet, triode Q1 collector connection capacitor C4 1 foot.
2. a kind of optimization circuit based on radio frequency transmission antenna transmission power as described in claim 1, it is characterised in that: described
The model NPN_9013 of triode Q1.
3. a kind of optimization circuit based on radio frequency transmission antenna transmission power as described in claim 1, it is characterised in that: described
The model NPN_2sc3356 of triode Q2.
4. a kind of optimization circuit based on radio frequency transmission antenna transmission power as described in claim 1, it is characterised in that: described
The model 27nH of inductance L1；The model 22uH of inductance L2.
5. a kind of optimization circuit based on radio frequency transmission antenna transmission power as described in claim 1, it is characterised in that: described
433 module X1 are 433 sound table resonators.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610783620.6A CN106374868B (en) | 2016-08-30 | 2016-08-30 | A kind of optimization circuit based on radio frequency transmission antenna transmission power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610783620.6A CN106374868B (en) | 2016-08-30 | 2016-08-30 | A kind of optimization circuit based on radio frequency transmission antenna transmission power |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106374868A CN106374868A (en) | 2017-02-01 |
| CN106374868B true CN106374868B (en) | 2019-03-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610783620.6A Expired - Fee Related CN106374868B (en) | 2016-08-30 | 2016-08-30 | A kind of optimization circuit based on radio frequency transmission antenna transmission power |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106374868B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104682974A (en) * | 2015-03-20 | 2015-06-03 | 周玉林 | 433 MHz wireless transmitter |
| CN104869506A (en) * | 2015-03-24 | 2015-08-26 | 吴圣铎 | Cable television system stereo signal transmitting device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5933355B2 (en) * | 2012-06-12 | 2016-06-08 | 太陽誘電株式会社 | Filter and duplexer |
-
2016
- 2016-08-30 CN CN201610783620.6A patent/CN106374868B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104682974A (en) * | 2015-03-20 | 2015-06-03 | 周玉林 | 433 MHz wireless transmitter |
| CN104869506A (en) * | 2015-03-24 | 2015-08-26 | 吴圣铎 | Cable television system stereo signal transmitting device |
Non-Patent Citations (1)
| Title |
|---|
| 标签密集环境下天线互偶效应研究;佐磊 等;《物理学报》;20130223;第62卷(第4期);全文 |
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| CN106374868A (en) | 2017-02-01 |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190301 |