CN102738578A - Dynamic micro-strip antenna applied to TPMS (Tire Pressure Monitor System) transmitter - Google Patents
Dynamic micro-strip antenna applied to TPMS (Tire Pressure Monitor System) transmitter Download PDFInfo
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- CN102738578A CN102738578A CN2012102365788A CN201210236578A CN102738578A CN 102738578 A CN102738578 A CN 102738578A CN 2012102365788 A CN2012102365788 A CN 2012102365788A CN 201210236578 A CN201210236578 A CN 201210236578A CN 102738578 A CN102738578 A CN 102738578A
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- 239000000758 substrate Substances 0.000 claims abstract description 18
- 239000002184 metal Substances 0.000 claims abstract description 13
- 229910052751 metal Inorganic materials 0.000 claims abstract description 13
- 238000013461 design Methods 0.000 claims description 12
- 238000004088 simulation Methods 0.000 claims description 9
- 230000005672 electromagnetic field Effects 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 238000005530 etching Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 230000005855 radiation Effects 0.000 description 8
- 238000012360 testing method Methods 0.000 description 8
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 239000004020 conductor Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
- B60C23/02—Signalling devices actuated by tyre pressure
- B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
- B60C23/0408—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
- B60C23/0422—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver characterised by the type of signal transmission means
- B60C23/0433—Radio signals
- B60C23/0447—Wheel or tyre mounted circuits
- B60C23/0452—Antenna structure, control or arrangement
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Waveguide Aerials (AREA)
Abstract
The invention provides a dynamic micro-strip antenna applied to a TPMS (Tire Pressure Monitor System) transmitter, comprising a transmitter antenna. The dynamic micro-strip antenna applied to the TPMS transmitter further comprises an automobile wheel hub; the transmitter comprises a micro-strip antenna and a substrate; the micro-strip antenna is formed by printing metal lead wires; one side of the substrate is provided with the micro-strip antenna; and the other side of the substrate is provided with a ground plane metal layer of a power supply. The dynamic micro-strip antenna applied to the TPMS transmitter can avoid the influences (caused by the metal wheel hub) on the performance of the antenna to the greatest extent; the cost for designing and producing a transmission antenna is saved; and the antenna can outwards radiate power to the greatest extent so that the performance consistency of a product is improved.
Description
Technical field
The present invention relates to vehicle tire pressure supervisory control system (TPMS), particularly relate to a kind of dynamic microstrip antenna of the TPMS of being applied to reflector.
Background technology
TPMS emitter antenna type relatively more commonly used at present has spring antenna, inverse-F antenna and little loop antenna, valve antenna.Though the spring antenna good directionality, pitch can change running at high speed down, influences antenna performance; Inverse-F antenna better performances but take up room big; Little loop antenna, valve cock antenna need specialized designs, and cost is high, and if reflector use these antenna to be installed on the wheel hub as transmitting antenna, the rotation of metal wheel-hub and wheel hub is very big to the performance impact of emitter antenna, makes the decreased performance of TPMS.In application number is 201010172883.6 one Chinese patent application; What adopt is PCB antenna; PCB antenna is arranged on the tire inflation pressure determining system main printed circuit board, and the shortcoming of this antenna is to take up room greatly, regard an integral body as with wheel hub; Receive the angle that wheel hub itself and wheel hub rotate during real work, antenna radiation efficiency, directivity are all unstable.
Summary of the invention
The dynamic microstrip antenna that the purpose of this invention is to provide a kind of TPMS of being applied to reflector, it can farthest avoid the influence of metal wheel hub to antenna performance.
The object of the invention can be realized through following technical scheme: the dynamic microstrip antenna that is applied to the TPMS reflector; It comprises emitter antenna, it is characterized in that, this dynamic microstrip antenna that is applied to the TPMS reflector also comprises automotive hub; Said emitter antenna comprises microstrip antenna and substrate; This microstrip antenna is made up of the type metal lead, shown in the one side of substrate be said microstrip antenna, the another side of said substrate is the power supply ground plane metallic layer.
The object of the invention also can be realized through following technical measures:
The copper thickness of said microstrip antenna is 35um, and the length of said microstrip antenna is 1/4 wavelength.
Preferably, said microstrip antenna is an annular.
Preferably, said microstrip antenna be spring type, the type that circumnutates or snakelike.
Preferably, the material of said substrate is FR-4.
Preferably, through etching process said microstrip antenna directly is produced on the said substrate.
Preferably, according to the said 3 D electromagnetic field simulation model that is applied to the dynamic microstrip antenna of TPMS reflector, carry out the design of the match circuit of the said dynamic microstrip antenna that is applied to the TPMS reflector.
Preferably, in the simulation model of said 3 D electromagnetic field, the diameter of said automotive hub is 38cm, and thickness is about 20mm, and said automotive hub is 12cm overhead.
Preferably, when carrying out the design of said match circuit, get emitter position and carry out designing impedance matching at 270 ° point.
The technical staff is not difficult to find out that the scheme that combination in any constituted of above-mentioned each preferred version all is a part of the present invention.
The dynamic microstrip antenna that is applied to the TPMS reflector among the present invention uses the PCB microstrip antenna as the reflector transmitting antenna, promptly is to use printed conductor as transmitting antenna, and transmitting antenna one side in addition is the ground level of power supply.This dynamic microstrip antenna that is applied to the TPMS reflector can farthest be avoided the influence of metal wheel hub to antenna performance, save design and produce the transmitting antenna cost, and antenna can farthest outside radiant power, the consistency of enhancing product performance.The dynamic microstrip antenna that is applied to the TPMS reflector among the present invention is regarded emitter antenna, wheel hub as a dynamic antenna together; Set up the 3 D electromagnetic field simulation model of dynamic antenna, and the dynamic antenna parameter that emulation obtains is used for the match circuit design of the reflector of TPMS.Actual road test shows: adopt the TPMS system of dynamic antenna coupling to install onboard and when being kept in motion, the accuracy of its signal power efficiency of transmission and data frame transfer all obtains very big improvement.The result shows that the data transmission performance of the TPMS system that adopts the dynamic antenna matching Design has obtained significantly improving, and explains that dynamic microstrip antenna is fit to tire pressure monitoring system (TPMS) reflector.
Description of drawings
Fig. 1 is the structural representation front view that is applied to dynamic microstrip antenna one preferred embodiment of TPMS reflector of the present invention;
Fig. 2 is the sketch map of the installation site of reflector on wheel hub;
Fig. 3 is the emitter position sketch map;
Fig. 4 is the dynamic microstrip antenna power radiation pattern of left rear wheel when 0 ° of position;
Fig. 5 is the dynamic microstrip antenna power radiation pattern of left rear wheel when 90 ° of positions;
Fig. 6 is the dynamic microstrip antenna power radiation pattern of left rear wheel when 180 ° of positions;
Fig. 7 is the dynamic microstrip antenna power radiation pattern of left rear wheel when 270 ° of positions.
Embodiment
For make above-mentioned and other purposes of the present invention, feature and advantage can be more obviously understandable, the hereinafter spy enumerates preferred embodiment, and cooperates appended graphicly, elaborates as follows.
Fig. 1 is the structural representation front view that is applied to dynamic microstrip antenna one preferred embodiment of TPMS reflector of the present invention.This dynamic microstrip antenna that is applied to the TPMS reflector is made up of emitter antenna and wheel hub.Emitter antenna is made up of substrate 2 and microstrip antenna 1.Microstrip antenna 1 is made up of the type metal lead, and copper thickness is 35um or other thickness, and the length of microstrip antenna 1 is about 1/4 wavelength (173mm), and in order to obtain bigger energy, microstrip antenna 1 is big as far as possible around area.Microstrip antenna 1 be shaped as annular shape, Yi Bian and antenna be the power supply ground level in addition, can stop a day alignment wheel hub direction radiation, avoid metal wheel hub to influence the performances such as gain, efficient, direction of antenna.In one embodiment; The shape of microstrip antenna also can be other shapes, like spring shape, the shape that circumnutates, snakelike etc., Yi Bian and antenna be the power supply ground level in addition; Can stop a day alignment wheel hub direction radiation, avoid metal wheel hub to influence the performance such as gain, efficient, direction of antenna.
Preferably microstrip antenna 1 be shaped as annular shape because loop aerial and other shape antenna ratios than advantage have be can along printed board one side of something around, big around area, can be to the external radiation more power, promptly efficient is higher.
Fig. 2 is the sketch map of the installation site of reflector on wheel hub, and launcher shell A is installed on the wheel hub 10.Antenna 1 and substrate 2 among Fig. 1 are positioned at launcher shell.
The TPMS dynamic antenna is made up of emitter antenna, wheel hub, and with the part of automotive hub as transmitting antenna, the two forms a dynamic antenna, sets up the 3 D electromagnetic field simulation model of dynamic antenna simultaneously.In one embodiment, its 3 D electromagnetic field simulation model is 38cm with the hub diameter, and thickness is about 20mm.The CAD graphical configuration that hub portion in the dynamic antenna model adopts producer to provide is treated with perfact conductor, does not consider the influence of rubber tyre.Reflector is installed on the wheel hub.Except that wheel hub influenced emitter antenna, overhead height was less than a wavelength owing to antenna, and the influence on ground also can not ignore, and replaces actual ground with infinitely great perfact conductor face in the model.Wheel hub 12cm overhead in the dynamic antenna.In HFSS, utilize this model that the performance of dynamic antenna is carried out emulation.
After setting up the 3 D electromagnetic field simulation model of dynamic antenna, utilize the parameter of this model emulation dynamic antenna, the parameter that obtains is used for the design of antenna-matching circuit.Consider the performance impact of the angle of wheel hub commentaries on classics during design, guarantee that antenna can farthest outside radiant power antenna.Dynamically during microstrip antenna designs, at first antenna structure is analyzed, in HFSS, set up antenna and wheel hub digital-to-analogue, the phantom antenna parameter, and mate according to the phantom antenna parameter, carry out actual debugging optimization again, carry out performance test at last.
Fig. 3 is the emitter position sketch map, and along with the variation of emitter position, the characteristic of dynamic antenna also will change.Here get analyzing to 0 °, 90 °, 180 °, 270 ° 4 positions shown in Figure 7 of left rear wheel like Fig. 4.
Can find out that from Fig. 4 to Fig. 7 along with the rotation of tire, the antenna direction characteristic variations is obvious, explain that the rotation of wheel hub is very big to the influence of antenna direction performance.
The changes in resistance scope of dynamic antenna input impedance is 0.1794 ~ 0.2201, the excursion of reactance is 2.5364 ~ 2.7911.The rotation of simulation result shows wheel hub is among the variation parameter of antenna, and the variation of antenna parameter will influence the performance of antenna.The variation of antenna parameter will influence the performance of antenna.The dynamic change of dynamic antenna impedance has brought certain difficulty for the design of match circuit, but can find out that to Fig. 7 the bigger part of dynamic antenna impedance variations mainly concentrates on emitter antenna and runs to subaerial interval by Fig. 4.In order rationally to take into account the situation of each point, get 270 ° of points here and carry out designing impedance matching.According to this designing impedance matching of dynamic antenna, made reflector again, form new TPMS system with former receiver.
Test is carried out actual vehicle-mounted contrast test with TPMS system and new TPMS system.Set Frame of the every 10s emission of reflector, follow-on test time 2h, totally 820 frames.During test, automobile is at the high speed road traveling, and speed is 100km/h.Carry out 2 kinds of contrast tests: reflector adopts dynamic antenna coupling, the Frame that the recorder machine receives.Reflector adopts static single antenna coupling, the Frame that the recorder machine receives.Table 1 is seen in the data transmission performance contrast of two kinds of test gained.
Table 1 real vehicle test communications effect comparison table
| The reflector state | The correct Frame number that receives | The Frame accuracy |
| The dynamic antenna coupling | 802 | 97.8% |
| The single antenna coupling | 467 | 56.9% |
Those skilled in the art are understood that after having read this specification; The dynamic microstrip antenna of the TPMS of being applied to reflector of the present invention is combined by prior art and constitutes; Though these prior aries are not all described on all matters, big and small ground one by one, those skilled in the art can know its cloud after having read this specification.Describe the combination of above-mentioned prior art in this specification and constituted each scheme of the present invention; It will be appreciated by those skilled in the art that; The various combinations of these schemes, and the combination that constitutes various piece and/or the characteristic of these schemes all belongs to the category of scheme of the present invention.Those skilled in the art obviously it is understandable that, above-mentioned prior art is combined formation the present invention, and this needs a large amount of creative works to pay, and are the crystallizations of theoretical research for many years and a large amount of experiments.
Claims (9)
1. be applied to the dynamic microstrip antenna of TPMS reflector; It comprises emitter antenna, it is characterized in that, this dynamic microstrip antenna that is applied to the TPMS reflector also comprises automotive hub; Said emitter antenna comprises microstrip antenna and substrate; This microstrip antenna is made up of the type metal lead, shown in the one side of substrate be said microstrip antenna, the another side of said substrate is the power supply ground plane metallic layer.
2. device according to claim 1 is characterized in that, the copper thickness of said microstrip antenna is 35um, and the length of said microstrip antenna is 1/4 wavelength.
3. device according to claim 1 and 2 is characterized in that, said microstrip antenna is an annular.
4. device according to claim 1 and 2 is characterized in that, said microstrip antenna is a spring shape, shape or snakelike circumnutates.
5. according to the described device of claim 1-4, it is characterized in that the material of said substrate is FR-4.
6. according to the described device of claim 1-5, it is characterized in that, said microstrip antenna directly is produced on the said substrate through etching process.
7. according to the described device of claim 1-6, it is characterized in that,, carry out the design of the match circuit of the said dynamic microstrip antenna that is applied to the TPMS reflector according to the said 3 D electromagnetic field simulation model that is applied to the dynamic microstrip antenna of TPMS reflector.
8. according to the described device of claim 1-7, it is characterized in that in the simulation model of said 3 D electromagnetic field, the diameter of said automotive hub is 38cm, thickness is about 20mm, and said automotive hub is 12cm overhead.
9. according to the described device of claim 1-8, it is characterized in that, when carrying out the design of said match circuit, get emitter position and carry out designing impedance matching at 270 ° point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210236578.8A CN102738578B (en) | 2012-06-04 | 2012-07-10 | Be applied to the dynamic microstrip antenna of TPMS transmitter |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101790889 | 2012-06-04 | ||
| CN201210179088.9 | 2012-06-04 | ||
| CN201210179088 | 2012-06-04 | ||
| CN201210236578.8A CN102738578B (en) | 2012-06-04 | 2012-07-10 | Be applied to the dynamic microstrip antenna of TPMS transmitter |
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| Publication Number | Publication Date |
|---|---|
| CN102738578A true CN102738578A (en) | 2012-10-17 |
| CN102738578B CN102738578B (en) | 2016-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210236578.8A Active CN102738578B (en) | 2012-06-04 | 2012-07-10 | Be applied to the dynamic microstrip antenna of TPMS transmitter |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108574500A (en) * | 2017-03-09 | 2018-09-25 | 深圳市航盛电子股份有限公司 | The matching process of tire pressure monitoring sensor radio-frequency antenna based on valve inside antenna |
| CN108598688A (en) * | 2018-02-14 | 2018-09-28 | 深圳市道通智能航空技术有限公司 | Unmanned plane built-in aerial and unmanned plane |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6384720B1 (en) * | 2001-03-08 | 2002-05-07 | Trw Inc. | System and method for sensing an operating parameter of a vehicle tire |
| US20030164799A1 (en) * | 2002-03-01 | 2003-09-04 | Lear Corporation | Antenna for tire pressure monitoring wheel electronic device |
| CN1658429A (en) * | 2004-02-17 | 2005-08-24 | 京瓷株式会社 | Antenna for tire pressure information sending apparatus and tire pressure information sending apparatus using the same |
| CN1958317A (en) * | 2005-11-04 | 2007-05-09 | 台达电子工业股份有限公司 | Device for monitoring tyre pressure |
| CN2924811Y (en) * | 2006-03-02 | 2007-07-18 | 汉达精密电子(昆山)有限公司 | Printed circuit board antenna |
| CN202749511U (en) * | 2012-06-04 | 2013-02-20 | 北京兴科迪科技有限公司 | Dynamic micro-strip antenna applied to TPMS (Tyre Pressure Monitoring System) emitter |
-
2012
- 2012-07-10 CN CN201210236578.8A patent/CN102738578B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6384720B1 (en) * | 2001-03-08 | 2002-05-07 | Trw Inc. | System and method for sensing an operating parameter of a vehicle tire |
| US20030164799A1 (en) * | 2002-03-01 | 2003-09-04 | Lear Corporation | Antenna for tire pressure monitoring wheel electronic device |
| CN1658429A (en) * | 2004-02-17 | 2005-08-24 | 京瓷株式会社 | Antenna for tire pressure information sending apparatus and tire pressure information sending apparatus using the same |
| CN1958317A (en) * | 2005-11-04 | 2007-05-09 | 台达电子工业股份有限公司 | Device for monitoring tyre pressure |
| CN2924811Y (en) * | 2006-03-02 | 2007-07-18 | 汉达精密电子(昆山)有限公司 | Printed circuit board antenna |
| CN202749511U (en) * | 2012-06-04 | 2013-02-20 | 北京兴科迪科技有限公司 | Dynamic micro-strip antenna applied to TPMS (Tyre Pressure Monitoring System) emitter |
Non-Patent Citations (1)
| Title |
|---|
| ANIL OZDEMIRLI ET AL: "TPMS Receive Antenna Design for Large Vehicles", 《 GENERAL ASSEMBLY AND SCIENTIFIC SYMPOSIUM, 2011 》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108574500A (en) * | 2017-03-09 | 2018-09-25 | 深圳市航盛电子股份有限公司 | The matching process of tire pressure monitoring sensor radio-frequency antenna based on valve inside antenna |
| CN108574500B (en) * | 2017-03-09 | 2020-08-28 | 深圳市航盛电子股份有限公司 | Matching method of tire pressure monitoring sensor radio frequency antenna based on valve core antenna |
| CN108598688A (en) * | 2018-02-14 | 2018-09-28 | 深圳市道通智能航空技术有限公司 | Unmanned plane built-in aerial and unmanned plane |
| CN108598688B (en) * | 2018-02-14 | 2020-07-24 | 深圳市道通智能航空技术有限公司 | Unmanned aerial vehicle built-in antenna and unmanned aerial vehicle |
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| CN102738578B (en) | 2016-03-23 |
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Denomination of invention: Dynamic micro-strip antenna applied to TPMS (Tire Pressure Monitor System) transmitter Effective date of registration: 20180329 Granted publication date: 20160323 Pledgee: China Co truction Bank Corp Beijing Zhongguancun branch Pledgor: Beijing Sincode Science & Technology Co., Ltd. Registration number: 2018110000005 |
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Effective date of registration: 20201218 Address after: 225500 south of Fuyuan Road, Luo Tang street, Jiangyan District, Taizhou, Jiangsu, China Patentee after: XINGKEDI TECHNOLOGY (TAIZHOU) Co.,Ltd. Address before: 100091 Beijing city Haidian District Chapeng Road No. 2 Patentee before: BEIJING SINCODE SCIENCE & TECHNOLOGY Co.,Ltd. |
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