CN109307555A - Integrated temperature sensing radio frequency coaxial leakage cable - Google Patents
Integrated temperature sensing radio frequency coaxial leakage cable Download PDFInfo
- Publication number
- CN109307555A CN109307555A CN201811246035.8A CN201811246035A CN109307555A CN 109307555 A CN109307555 A CN 109307555A CN 201811246035 A CN201811246035 A CN 201811246035A CN 109307555 A CN109307555 A CN 109307555A
- Authority
- CN
- China
- Prior art keywords
- radio frequency
- temperature sensing
- leaky cable
- cable
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000005855 radiation Effects 0.000 claims abstract description 15
- 230000005540 biological transmission Effects 0.000 claims abstract description 12
- 239000004020 conductor Substances 0.000 claims abstract description 12
- 239000002184 metal Substances 0.000 claims abstract description 9
- 229910052751 metal Inorganic materials 0.000 claims abstract description 9
- 238000004891 communication Methods 0.000 claims abstract description 8
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 238000012806 monitoring device Methods 0.000 abstract 1
- 238000012544 monitoring process Methods 0.000 description 8
- 101100545272 Caenorhabditis elegans zif-1 gene Proteins 0.000 description 6
- 238000010792 warming Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 230000008054 signal transmission Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 230000005672 electromagnetic field Effects 0.000 description 3
- 239000013307 optical fiber Substances 0.000 description 3
- 238000012216 screening Methods 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 230000036413 temperature sense Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P3/00—Waveguides; Transmission lines of the waveguide type
- H01P3/02—Waveguides; Transmission lines of the waveguide type with two longitudinal conductors
- H01P3/06—Coaxial lines
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/20—Non-resonant leaky-waveguide or transmission-line antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/203—Leaky coaxial lines
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Waveguide Aerials (AREA)
- Near-Field Transmission Systems (AREA)
Abstract
The invention relates to an integrated temperature sensing radio frequency coaxial leaky cable. The leakage cable temperature monitoring device comprises an outer metal shielding conductor, a radiation hole formed in the outer metal shielding conductor, and a temperature sensing radio frequency identification electronic tag used for collecting the ambient temperature around the leakage cable, wherein the temperature sensing radio frequency identification electronic tag establishes data communication with a far-end reader-writer through electromagnetic waves radiated by the radiation hole. On the basis of the traditional leaky cable, the radio frequency leaky cable can transmit radio frequency signals and can also carry out remote temperature information acquisition and transmission by additionally arranging the radio frequency identification electronic tag with the temperature sensing function.
Description
Technical field
The present invention relates to a kind of integrated form temperature sensing RF coaxial leaky cables.
Background technique
The coaxial leaky cable of conventional radio frequency is on the basis of Common radio frequency coaxial cable, by Common radio frequency coaxial cable
External shield metal layer carries out special drilling, realizes while signal transmission using electromagnetic wave is sewed to reach transmission signal and spoke
The purpose of two functions of radio magnetic wave.It is a variety of that traditional leaky cable mainly applies to underpass communication or underground railway track communication etc.
Free space electromagnetic wave is not easy the occasion reached, is used for the various handheld devices in underground (such as mobile phone, intercom) and ground installation
Communication relay, in this application, traditional leaky cable do not have any temperature information sensing acquisition and transmission function
It can, it is impossible to be used in leakage cable is acquired along thread environment or the temperature information of other equipment.
In addition, existing long range temperature sensing monitoring means include the schemes such as wired, wireless or optical fiber, in comparison all
There are certain defects.Such as wired and optical fiber approach, needs separately to be routed when carrying out monitoring temperature to culvert or tunnel, can not utilize
The existing cable in tunnel realizes environmental temperature monitoring, and design and construction cost is caused to double.In addition, existing wireless temperature sensing
Scheme is not easy to communicate in tunnel middle and long distance due to being influenced by environment.Therefore, environment is realized using the existing cable in tunnel
Monitoring temperature is that the RF coaxial leaky cable for solving the problems, such as one of this approach, and being suitable for long distance signal transmission is to solve
This problem provides the foundation.
Summary of the invention
The present invention proposes a kind of integrated form temperature sensing RF coaxial leaky cable, on the basis of traditional leaky cable, leads to
Cross to increase to lay and have the radio frequency recognizing electronic label of temperature sensing function, make radio frequency leakage cable not only can with transmitting radio frequency signal and
And remote temperature information collection and transmission can also be carried out.
In order to solve the above technical problem, the present invention provides a kind of integrated form temperature sensing RF coaxial leaky cable, packets
The radiating aperture for including outer layer metal shielded conductor and being provided on outer layer metal shielded conductor further includes for acquiring described sew
The temperature sensing radio frequency recognizing electronic label of environment temperature around cable, the temperature sensing radio frequency recognizing electronic label pass through
The electromagnetic wave and distal end reader of the radiating aperture radiation establish data communication.
Preferably, the electromagnetic wave realization that the temperature sensing radio frequency recognizing electronic label is radiated by the radiating aperture is filled
Electricity.
Preferably, the temperature sensing radio frequency recognizing electronic label is mounted on the leaky cable outer surface.
Preferably, the temperature sensing radio frequency recognizing electronic label is located at radiating aperture.
Preferably, having spacing between the temperature sensing radio frequency recognizing electronic label and the leaky cable.
Preferably, the ceiling capacity receiving plane alignment leaky cable electricity of the temperature sensing frequency identification electronic label antenna
Electromagnetic wave radiation direction.
Preferably, the temperature sensing radio frequency recognizing electronic label built-in temperature sensor and radio frequency identification transceiving chip,
The temperature sensor is collected after collecting ambient temperature information by radio frequency identification transceiving chip, and radio frequency identification transceiving chip again will
Ambient temperature information gives distal end reader by the electromagnetic transmission.
Compared with prior art, the present invention its remarkable advantage is:
(1) only to have radio signal transmission and radiation function any without having for conventional radio frequency leaky cable by the present invention
Temperature sensing function defect, pass through in RF coaxial leaky cable superficies or short range lay installation temperature
Degree sensing radio frequency recognizing electronic label, and realized by radio frequency identification (RFID) technology by the electromagnetic wave that leaky cable is sent
Temperature information uploads；
(2) present invention is not changing on radio-frequency leakage cable original function basis, increases temperature sensing function.It compares
Compared with other wired and wireless or optical fiber sensing schemes, integrated level of the present invention is high, flexible arrangement, without separately external when application
Sensing equipment and signal sending and receiving equipment, can be widely applied to the field environments such as tunnel, culvert, tunnel and subway and equipment is warm in real time
Spend temperature detection monitoring.
Detailed description of the invention
Fig. 1 is conventional radio frequency leaky cable structural schematic diagram.
Fig. 2 is integrated form temperature sensing radio-frequency leakage cable one embodiment schematic diagram of the present invention, in the present embodiment, temperature
Sense label is fitted closely with tradition leakage cable.
Fig. 3 is another embodiment schematic diagram of integrated form temperature sensing radio-frequency leakage cable of the present invention, in the present embodiment,
Warming label and tradition leakage cable are arranged apart.
In figure, 1 is core conductor in radio-frequency leakage cable；2 be radio-frequency leakage cable primary insulation material；3 be radio-frequency leakage
Cable outer layer metallic screening conductor；The 4 various radiation apertures to be excavated on radio-frequency leakage cable outer layer shielded conductor；5 be radio frequency
Leaky cable outer layer insulation sheath；6 be the temperature sensing electronic tag being attached on outer insulator；7 be radio frequency identification read-write
Device.
Specific embodiment
It is readily appreciated that, technical solution according to the present invention, in the case where not changing connotation of the invention, this field
Those skilled in the art can imagine numerous embodiments of the invention.Therefore, following specific embodiments and attached drawing are only
To the exemplary illustration of technical solution of the present invention, and it is not to be construed as whole of the invention or is considered as to the technology of the present invention side
The limitation or restriction of case.
As shown in Figure 1, conventional radio frequency leaky cable is mainly by core conductor 1 in radio-frequency leakage cable, radio-frequency leakage cable
Layer insulating materials 2, radio-frequency leakage cable outer layer metallic screening conductor 3 and radio-frequency leakage cable outer layer insulating sheath 5 form,
In, various radiation apertures 4 are excavated on radio-frequency leakage cable outer layer metallic screening conductor 3, radiation aperture 4 is for sewing electromagnetism
Wave realizes the function of signal transmission by the electromagnetic wave sewed.The present invention is on the basis of the conventional radio frequency leaky cable, at it
Temperature sensing radio frequency recognizing electronic label is laid in outer surface or short range, is designed and is integrated temperature sensor
Integrated form temperature sensing RF coaxial leaky cable.Wherein temperature sensing radio frequency recognizing electronic label acquires environment temperature, passes through
Leaky cable radiated electromagnetic wave completes electronic tag charging and realizes temperature information remote collection with temperature information uplink with this
With transmission.
Embodiment 1
In conjunction with Fig. 2, the present embodiment is in conventional radio frequency leaky cable structure basis, by passive and wireless temperature sensing electronics mark
Label 6 are adhered closely on radio frequency leakage cable, and the electromagnetic wave of leakage cable radiation is directly received by the antenna of temperature sensing electronic tag 6,
Electromagnetic wave electron label 6 charges and completes the data communication between label 6 and distal end reader 7.Electronic label antenna is most
Big energy acceptance face need to be directed at the electromagnetic field radiation direction of leaky cable to obtain maximum field strength, improve the reception of electronic tag
Sensitivity, therefore warming electronic tag needs are placed in leakage cable aperture side.Temperature sensing electronic tag 6 uses temperature sensing radio frequency
Identify the design of (RFID) chip, the design of antenna part can be, but not limited to use according to the radio-frequency leakage construction of cable in label
Symmetrical dipole antenna, ceramic anti-metal tag or PCB anti-metal tag etc..The design of label antenna is maximum in favor of obtaining
Field strength density and highest receiving sensitivity are main foundation.
In the present embodiment, leaky cable and temperature sensing electronic tag 6 can integrate being processed as one before factory
Product, leaky cable and temperature electronic label 6 can also be separately designed, be then assembled into one at the construction field (site).
Embodiment 2
In conjunction with Fig. 3, the present embodiment is in conventional radio frequency leaky cable structure basis, by passive and wireless temperature sensing electronics mark
Label 6 are arranged within certain leakage cable coupling distance with radio frequency leakage cable, such application in view of leakage cable performance parameter it is different with
And reader transmission power height, the distance between label and leakage cable will be different, practical application can be according to reality
The distance between thermometric object and leakage cable, the reversed determining and different size of reader power of selection and leakage cable parameter (including leakage
Type, the number of openings, aperture and the pitch-row of cable).In the present embodiment, the ceiling capacity receiving plane of electronic label antenna equally needs
The electromagnetic field radiation direction of leaky cable is directed to obtain maximum field strength, improves the receiving sensitivity of electronic tag.
In the present embodiment, the type of different leaky cables, such as coupled mode leaky cable and radial leak cable,
RFID temperature electronic label and leakage cable between relative distance distance will be different, but distance difference do not influence it is passive
The mode that wireless temperature sensing electronic label 6 and radio frequency leakage cable are provided separately.
In foregoing embodiments, temperature sensing electronic tag 6 divides from structure, including but not limited to symmetrical dipole
Label, anti-metal tag etc..
In foregoing embodiments, temperature sensing electronic tag 6 divides from material, including but not limited to FPC label, pottery
Porcelain label or printed circuit board (PCB) label.
In foregoing embodiments, temperature sensing electronic tag 6 is from having on non-transformer point, including passive electronic label and each
Kind active electronic label.
In foregoing embodiments, passive and wireless temperature sensing electronic tag built-in temperature sensor and radio frequency identification are received and dispatched
Chip, in practical application, electromagnetic wave of the passive and wireless electronic tag first through leakage cable transmission gives label wireless charging, when electronics mark
After label obtain enough energy, built-in temperature sensor and rf chip are started to work, and built-in temperature sensor collects
Temperature information collected first by rf chip, rf chip again by temperature information by leakage cable coupled transfer to eventually
Reader is held, the detection and transmission of temperature information are thus completed.
Conventional temperature electronic tag is used general with plate reading and writing device antenna, since power and the gain of plate antenna have
Limit, so the distance of reaction between reader and temperature electronic label is limited.To further increase the sensing acquisition distance of reaction,
The present invention is on the basis of existing conventional radio frequency leaky cable, by winding or pasting passive and wireless temperature sensing radio frequency identification electricity
Subtab 6 is on leaky cable outer layer insulation sheath；Or by closely placing warming label 6 near leakage cable, by close
Field electromagnetic field couples and radiation, monitor warming label position (environment or label attachment) temperature with this, to realize
Along the purpose of leaky cable direction remote temperature information sensing acquisition and transmission, the application space of leaky cable itself is expanded,
The distance of reaction between reader and temperature electronic label is also improved simultaneously.
The technical solution through the invention, will integrate temperature sensing and radio frequency leaks two functions of cableless communication, function
It can be not only transmission and the leakage radiation of radiofrequency signal, the cable itself has changed into a intelligence along direction of routing arrangement
Temperature sensor has expanded leakage cable intelligent monitoring function, and the intelligent use for improving leaky cable is horizontal, can be widely applied to
The environment such as underpass, for the temperature information acquisition and monitoring along leaky cable direction of routing.
Design through the invention improves, and can further expand the function and application of radio-frequency leakage cable.Using this collection
Accepted way of doing sth temperature sensing radio frequency leak cable, can with testing tunnel, culvert, subway etc. it is any be suitable for leak cable arrangement environment temperature, in addition,
Arrangement is separated by short-range between warming electronic tag and leakage cable, can also flexibly test the object temperature on various leakage cable peripheries
Warming electronic tag, is such as placed on power cable, cabinet equipment and other items, can distinguish monitoring power cable and cabinet by degree
The temperature information of equipment.
Claims (7)
1. a kind of integrated form temperature sensing RF coaxial leaky cable, including outer layer metal shielded conductor and it is provided with outer layer gold
Belong to the radiating aperture on shielded conductor, which is characterized in that further include the temperature for acquiring the environment temperature around the leaky cable
Degree sensing radio frequency recognizing electronic label, the electromagnetic wave that the temperature sensing radio frequency recognizing electronic label is radiated by the radiating aperture
Data communication is established with distal end reader.
2. leaky cable as described in claim 1, which is characterized in that the temperature sensing radio frequency recognizing electronic label passes through institute
The electromagnetic wave for stating radiating aperture radiation realizes charging.
3. leaky cable as described in claim 1, which is characterized in that the temperature sensing radio frequency recognizing electronic label is mounted on
On the leaky cable outer surface.
4. leaky cable as claimed in claim 3, which is characterized in that the temperature sensing radio frequency recognizing electronic label is located at spoke
At perforation.
5. leaky cable as described in claim 1, which is characterized in that the temperature sensing radio frequency recognizing electronic label with it is described
There is spacing between leaky cable.
6. the leaky cable as described in claim 3 or 5, which is characterized in that the temperature sensing radio frequency recognizing electronic label
The ceiling capacity receiving plane of antenna is directed at leaky cable electromagenetic wave radiation direction.
7. any one leaky cable as described in claim 1 to 5, which is characterized in that the temperature sensing frequency identification electronic mark
Label built-in temperature sensor and radio frequency identification transceiving chip, the temperature sensor are known after collecting ambient temperature information by radio frequency
Other transceiving chip is collected, and radio frequency identification transceiving chip is again read and write ambient temperature information by the electromagnetic transmission to distal end
Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811246035.8A CN109307555A (en) | 2018-10-23 | 2018-10-23 | Integrated temperature sensing radio frequency coaxial leakage cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811246035.8A CN109307555A (en) | 2018-10-23 | 2018-10-23 | Integrated temperature sensing radio frequency coaxial leakage cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109307555A true CN109307555A (en) | 2019-02-05 |
Family
ID=65225413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811246035.8A Pending CN109307555A (en) | 2018-10-23 | 2018-10-23 | Integrated temperature sensing radio frequency coaxial leakage cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109307555A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111199267A (en) * | 2020-03-16 | 2020-05-26 | 南京恒伟力信息技术有限公司 | Rail transit vehicle-mounted RFID temperature monitoring system |
| CN111222607A (en) * | 2020-03-16 | 2020-06-02 | 南京恒伟力信息技术有限公司 | Rail transit vehicle cable temperature monitoring front end and system based on passive RFID temperature measurement electronic tags |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201757684U (en) * | 2009-10-14 | 2011-03-09 | 武汉烽火富华电气有限责任公司 | Acoustic surface wave temperature sensing system used for buried cable |
| CN201837467U (en) * | 2010-09-10 | 2011-05-18 | 王春 | Device for measuring temperature of power line contact by adopting RFID (radio frequency identification) technology |
| CN104899638A (en) * | 2015-06-15 | 2015-09-09 | 中国科学院半导体研究所 | Passive radio-frequency identification temperature tag |
| CN106203585A (en) * | 2016-06-28 | 2016-12-07 | 湖北华威科智能技术有限公司 | A kind of RFID of band Temperature Humidity Sensor |
| CN206574106U (en) * | 2017-02-13 | 2017-10-20 | 南京聚普电子科技有限公司 | A kind of cable monitoring system based on TEMP ultrahigh frequency RFID |
| CN108197689A (en) * | 2018-03-15 | 2018-06-22 | 国网辽宁省电力有限公司营口供电公司 | Passive RFID cable temperature measuring label |
| CN207763838U (en) * | 2017-12-25 | 2018-08-24 | 大连丰和日丽电气有限公司 | Passive and wireless on-line temperature monitoring instrument |
| CN208254655U (en) * | 2018-05-23 | 2018-12-18 | 深圳市捷通科技有限公司 | A kind of temperature monitoring system |
| CN208998946U (en) * | 2018-10-23 | 2019-06-18 | 中国人民解放军陆军工程大学 | Integrated temperature sensing radio frequency coaxial leakage cable |
-
2018
- 2018-10-23 CN CN201811246035.8A patent/CN109307555A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201757684U (en) * | 2009-10-14 | 2011-03-09 | 武汉烽火富华电气有限责任公司 | Acoustic surface wave temperature sensing system used for buried cable |
| CN201837467U (en) * | 2010-09-10 | 2011-05-18 | 王春 | Device for measuring temperature of power line contact by adopting RFID (radio frequency identification) technology |
| CN104899638A (en) * | 2015-06-15 | 2015-09-09 | 中国科学院半导体研究所 | Passive radio-frequency identification temperature tag |
| CN106203585A (en) * | 2016-06-28 | 2016-12-07 | 湖北华威科智能技术有限公司 | A kind of RFID of band Temperature Humidity Sensor |
| CN206574106U (en) * | 2017-02-13 | 2017-10-20 | 南京聚普电子科技有限公司 | A kind of cable monitoring system based on TEMP ultrahigh frequency RFID |
| CN207763838U (en) * | 2017-12-25 | 2018-08-24 | 大连丰和日丽电气有限公司 | Passive and wireless on-line temperature monitoring instrument |
| CN108197689A (en) * | 2018-03-15 | 2018-06-22 | 国网辽宁省电力有限公司营口供电公司 | Passive RFID cable temperature measuring label |
| CN208254655U (en) * | 2018-05-23 | 2018-12-18 | 深圳市捷通科技有限公司 | A kind of temperature monitoring system |
| CN208998946U (en) * | 2018-10-23 | 2019-06-18 | 中国人民解放军陆军工程大学 | Integrated temperature sensing radio frequency coaxial leakage cable |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111199267A (en) * | 2020-03-16 | 2020-05-26 | 南京恒伟力信息技术有限公司 | Rail transit vehicle-mounted RFID temperature monitoring system |
| CN111222607A (en) * | 2020-03-16 | 2020-06-02 | 南京恒伟力信息技术有限公司 | Rail transit vehicle cable temperature monitoring front end and system based on passive RFID temperature measurement electronic tags |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10852349B2 (en) | Wireless test system for testing microelectronic devices integrated with antenna | |
| JP5492015B2 (en) | Low-frequency common leaky antenna, base station apparatus using the same, and short-range detection system | |
| CN101145811B (en) | Communication system, communication apparatus, and high frequency coupling equipment | |
| CN101794933B (en) | Proximity antenna and wireless communication device | |
| CN103430193B (en) | The property of the material of loading UHF RFID label tags is detected by analyzing interflection backscattering in different frequency and power level | |
| US20030214774A1 (en) | Device for transmission of electromagnetic radiation through a wall | |
| US8525647B2 (en) | Measurement system, measurement method and new use of antenna | |
| CN101568933A (en) | Wireless IC device | |
| CN103793733A (en) | Pipeline identification system based on RFID | |
| CN109307555A (en) | Integrated temperature sensing radio frequency coaxial leakage cable | |
| CN109863498A (en) | Transmit RFID test macro | |
| CN105869372B (en) | A kind of underground mineral products detector with video acquisition unit | |
| CN208998946U (en) | Integrated temperature sensing radio frequency coaxial leakage cable | |
| CN102946001B (en) | Antenna coupler coupled with logging-while-drilling resistivity apparatus | |
| CN104021404B (en) | The radio-frequency recognition system that a kind of near field uses | |
| CN203079146U (en) | Radio frequency storage device with array antennas | |
| Jayawardana et al. | Measurement system with a RFID tag antenna mounted on structural members for infrastructure health monitoring | |
| CN105807337B (en) | A kind of storable underground mineral products detector of information | |
| CN201536156U (en) | Electromagnetic shielding efficiency test device of small shielding body and radio-frequency antenna and dot frequency radiation source therein | |
| TWI418494B (en) | A planar loop antenna for uhf rfid tag on the plastic pallets | |
| CN112042282B (en) | Planar plasma diagnostic device, wafer-type plasma diagnostic device, and electrostatic chuck | |
| CN106646022A (en) | Microwave test system | |
| CN101783441A (en) | Antenna device and radio frequency device | |
| RU75798U1 (en) | WIRELESS RECEIVER AND TRANSMISSION DEVICE | |
| Li et al. | Research on Resistor‐Loaded Half‐Ellipse Antenna System for GPR Application |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190205 |