CN103384031A - Rfid reader antenna array structure and rfid reader - Google Patents
Rfid reader antenna array structure and rfid reader Download PDFInfo
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- CN103384031A CN103384031A CN2012101357515A CN201210135751A CN103384031A CN 103384031 A CN103384031 A CN 103384031A CN 2012101357515 A CN2012101357515 A CN 2012101357515A CN 201210135751 A CN201210135751 A CN 201210135751A CN 103384031 A CN103384031 A CN 103384031A
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- base plate
- antenna array
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- array structure
- rfid interrogator
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
- G06K7/10316—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves using at least one antenna particularly designed for interrogating the wireless record carriers
- G06K7/10356—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves using at least one antenna particularly designed for interrogating the wireless record carriers using a plurality of antennas, e.g. configurations including means to resolve interference between the plurality of antennas
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/2208—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems
- H01Q1/2216—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems used in interrogator/reader equipment
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/061—Two dimensional planar arrays
- H01Q21/065—Patch antenna array
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
- H01Q9/0421—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with a shorting wall or a shorting pin at one end of the element
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- Computer Networks & Wireless Communication (AREA)
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- General Health & Medical Sciences (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The invention discloses an RFID reader antenna array structure and an RFID reader. The RFID reader antenna array structure comprises a base plate and a plurality of antenna array elements which form an antenna array together. The base plate is connected with all the antenna array elements through at least one grounded short circuit device. A feed device is connected between each antenna array element and the base plate. According to the technical scheme, the RFID reader antenna array structure reduces the size of a traditional antenna structure, higher far field gain can also be obtained, the beam scanning function of an antenna of the RFID reader is achieved, the reading distance is increased, and the cavity reading probability is reduced.
Description
Technical field
The present invention relates to wireless communication field, particularly relate to a kind of rfid interrogator antenna array structure and rfid interrogator.
Background technology
Usually, the label sizes of rfid system is less, and this has limited the size of the radiating aperture of rfid interrogator antenna, therefore in the art, key and the difficult point of rfid interrogator Antenna Design are exactly the overlay area that how to increase reading and writing device antenna, to reduce to read empty probability.
Usually, the existing rfid interrogator antenna size of working in the uhf band that satisfies European RFID frequency range 865-868MHz is all larger, can't satisfy the designing requirement of rfid interrogator miniaturization, and if dwindle antenna size, be difficult to satisfy the demand that reads for the RFID label.
Summary of the invention
In view of this, the present invention seeks to have proposed a kind of rfid interrogator antenna array structure, in order to realize the beam scanning function of rfid interrogator antenna when reducing the rfid interrogator size, improve and read distance, reduce and read empty probability.
According to an aspect of the present invention, a kind of rfid interrogator antenna array structure is provided, described rfid interrogator antenna array structure comprises the bay of a base plate and a plurality of common formation aerial arrays, described base plate is connected with each described bay by at least one ground short circuit device, also is connected with a feeder equipment between each described bay and described base plate.
Preferably, also be connected with the bracing or strutting arrangement that at least one is used for supporting described bay between each described bay and described base plate.
Preferably, described base plate is rectangle plane, and described bay is the rectangle plane parallel with described base plate.
Preferably, described base plate is long and the wide sheet metal that all is not more than 300mm, and described bay is the FR4 flat board that the surface is covered with metal.
Preferably, described ground short circuit device is simultaneously perpendicular to the sheet metal of described bay and described base plate, and the one end is arranged at the end of described bay, and the other end is connected with the surface of described base plate.
Preferably, described feeder equipment is simultaneously perpendicular to described bay and described base plate, the one end connects coaxial line, and the outer conductor of described feeder equipment is contacted with described base plate, the other end is the inner wire feed probes, contacts with described bay by the hole on described bay.
Preferably, described feeder equipment comprises be used to the fixed mechanism that is fixed on described base plate, the corresponding mechanism that comprises for fixing described feeder equipment on described base plate.
Preferably, described feeder equipment is sub-miniature A connector, and the one end is the inner wire feed probes that contacts with described bay, and the other end has and connects the helicitic texture be used for to the coaxial line of described antenna array structure feed.
Preferably, in described antenna array structure, described bay is identical with arrangement number on cross direction in the length of described base plate, arranges in 2 * 2,3 * 3 or 4 * 4 modes.
According to another aspect of the present invention, provide a kind of rfid interrogator that comprises above-mentioned rfid interrogator antenna array structure.
Can find out from such scheme, antenna array structure of the present invention can obtain higher far gain when having reduced the traditional antenna physical dimension, realized the beam scanning function of rfid interrogator antenna, improved and read distance, reduced and read empty probability.
Description of drawings
The below will make clearer above-mentioned and other feature and advantage of the present invention of those of ordinary skill in the art by describing the preferred embodiments of the present invention in detail with reference to accompanying drawing, in accompanying drawing:
Fig. 1 is the overall perspective view of antenna array structure in the specific embodiment of the invention;
Fig. 2 is the stereogram of one of them bay of antenna array structure in the specific embodiment of the invention;
Fig. 3 is the vertical view of one of them bay of antenna array structure in the specific embodiment of the invention;
Fig. 4 is the front view of one of them bay of antenna array structure in the specific embodiment of the invention;
Fig. 5 is the left view of one of them bay of antenna array structure in the specific embodiment of the invention;
Fig. 6 is the structure chart of the sub-miniature A connector that uses in the specific embodiment of the invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in more detail by the following examples.
The present invention can satisfy current for rfid interrogator antenna coverage areas and the more and more higher requirement in size aspect in conjunction with the beam scanning array antenna technology with high-gain.Antenna array structure of the present invention is not equiphase input signal by the amplitude such as feeding network generation, can reach the scanning beam direction of maximum 60 °.The technical solution of the present invention cost is low, be easy to processing, can realize the multi-angle beam scanning; The scanning stack of four beam directions by-60 ° ,-20 °, 20 ° and 60 ° has reduced to read empty probability.
The present invention can (for example design the reading and writing device antenna array structure based on uhf band in less space in 300mm * 300mm), it is with two short-circuit piece flat plane antennas of falling F (two-shorting-pin planar invented-F antenna, TPIFA) form array as basic antenna element, realized the miniaturized structure of rfid interrogator antenna.The present invention has realized high efficiency and the high-gain of reading and writing device antenna in conjunction with the phased-array antenna technology, realize the beam scanning function by the combination with feeding network, thereby has improved the distance that reads of read write line, has reduced to read empty probability.
Wherein, two short-circuit piece flat plane antennas of falling F refer to increase metal ground short circuit sheet on antenna element, and from the side, ground short circuit sheet and feeder equipment, antenna element consist of an inverted-F shape jointly.This pair short-circuit piece plane antenna structure of falling F can guarantee to reduce antenna size in the situation that antenna resonant frequency is constant, is the important embodiment of antenna miniaturization innovation in the present invention.
Particularly, rfid interrogator antenna array structure in the specific embodiment of the invention comprises the bay of a base plate and a plurality of common formation aerial arrays, described base plate is connected with each described bay by at least one ground short circuit device, also is connected with feeder equipment between each bay and described base plate.
Described antenna array structure comprises a base plate, and this base plate can be set to the rectangle plane sheet metal, can be made by materials such as copper.For in the situation that satisfy the size that the service behaviour of aerial array requires to reduce rfid interrogator, the length of this base plate and widely can all be set to reduced size, for example 300mm left and right.On every position relative with array antenna on base plate, all have one and be used for the hole that makes described feeder equipment pass and make the outer conductor of base plate and described feeder equipment to keep in touch.In an optimal way, can also be provided with for the mechanism of fixing described feeder equipment on the every position relative with array antenna on base plate, such as hole etc., certainly, also can take welding to wait alternate manner that described feeder equipment is fixed on this base plate, thereby its outer conductor is contacted with this base plate.In an optimal way, can also be provided with the mechanism for the bracing or strutting arrangement that fixedly is used for supporting respective antenna array element on every position relative with array antenna on base plate, such as hole etc., certainly, also can take other known manner to fix to support the bracing or strutting arrangement of respective antenna array element.
Each bay that is used to form antenna array structure can constitute rectangular flat, they all be arranged in parallel with this base plate, and each bay by be arranged at the bay end, at least one the ground short circuit device perpendicular to this bay and this base plate is connected with this base plate simultaneously.All have one on each bay and be used for the hole that the inner wire with described feedback device keeps in touch, relative for the position in the hole of passing feeder equipment on this hole and this base plate.In an optimal way, in the hole that has on base plate for fixed support device, the also corresponding hole that has respective amount on each described bay, also be used for fixing this bracing or strutting arrangement, certainly, also can take other known manner to fix to support this bracing or strutting arrangement of respective antenna array element.
Each at least one ground short circuit device all connects this base plate and corresponding bay, and this ground short circuit device is simultaneously perpendicular to this bay and this base plate, and an end can be arranged at the bay end, and an end is connected to backplate surface.This ground short circuit device can be made by metal materials such as copper, and itself and bay, feeder equipment consist of described reversed F shaped structure jointly.
Connect the feeder equipment of this base plate and bay as the microwave high-frequency connector, the one end is the feed probes (inner wire) that is connected with bay, the other end passes this base plate and its outer conductor is contacted with this base plate, and has and connect the helicitic texture be used for to the coaxial line of array antenna feed.In addition, can also be provided with on this feeder equipment for the corresponding fixed mechanism that its outer conductor is fixed on this base plate.
As previously mentioned, in optimal way, also be connected with the bracing or strutting arrangement that at least one be used for to support this bay between each bay and base plate, such as plastic support etc.These bracing or strutting arrangements can be separately fixed on bay and base plate by the form such as screwed hole two ends, thus supporting antenna array element.
The below introduces and coordinates with antenna array structure of the present invention, and the feeding network of feeding function is provided for this antenna array structure.This feeding network adopts Butler matrix well known in the art, its basic composition unit comprises 3dB directional coupler, cross couplings and phase shifter, usually represent the quantity (N and M are respectively positive integer) of its input port and output port with N x M, its function that mainly realizes is for a certain input port, the energy discharge amplitude that each output port obtains is identical, phase place equal difference.In the use procedure of RFID antenna, by coaxial line, this feeding network is connected with each feeder equipment in antenna array structure of the present invention, thereby feeding function is provided.
Embodiment
The concrete structure of the rfid interrogator aerial array in specific embodiment of the present invention is described below in conjunction with Fig. 1-6.
Antenna array structure in this specific embodiment has base plate 1, and this base plate 1 is set to the rectangular planes copper sheet.For in the situation that satisfy the size that the service behaviour of aerial array requires to reduce rfid interrogator, the length of this base plate 1 and the wide 300mm that all is set to.On base plate 1 every position relative with array antenna 2, all have five holes that vary in size.In these five holes, one of them is used for passing the inner wire 41 of SMA (Small A Type) joint 4 from base plate 1 below, and makes the outer conductor 42 of sub-miniature A connector 4 keep in touch with this base plate 1, and sub-miniature A connector 4 herein is as the feeder equipment in the present invention.In this specific embodiment, this bore dia is determined by the outer conductor external diameter, be can be 4.1mm.Also have two holes to be used for fixing this sub-miniature A connector 4, its diameter is according to the diameter decision of fixing screw thread used, and its diameter is 3mm when adopting M3 model screw thread.Also have two holes to be used for fixing plastic support 5 for the supporting antenna plane, its diameter also can be the 3mm of M3 model screw thread, and plastic support 5 herein is as the bracing or strutting arrangement in the present invention.
Each antenna 2 that is used to form aerial array forms rectangular flat, and they all be arranged in parallel with this base plate 1, and each antenna 2 by be arranged at antenna 2 ends, two ground short circuit sheets 3 perpendicular to this antenna 2 and this base plate 1 are connected with this base plate 1 simultaneously.In this specific embodiment, this antenna 2 is made by glass fabric of epoxy resin laminate sheet material (FR4), and upper surface covers the metals such as copper to satisfy antenna performance, and each plate aerial 2 consists of a bay 2 in aerial array.All have three holes that vary in size on each bay 2, one of them with this base plate 1 on to be used for passing the hole of sub-miniature A connector 4 relative, it is for the feed probes 41 (inner wire) of inserting and welding sub-miniature A connector 4, in this specific embodiment, this bore dia is determined by the external diameter of inner wire 41, be can be 1.3mm.The hole that is used for fixed plastics pillar 5 on two other hole and this base plate 1 is relative respectively, and also for fixing this plastic support 5 at bay 2 these ends, so these two bore dias are also 3mm.
In this specific embodiment, two ground short circuit sheets 3 are as ground short circuit device of the present invention, and it is made by metal materials such as copper, and it is shaped as the Thin Rectangular metallic plate of 16.6mm x 17mm.
Above-mentioned sub-miniature A connector 4 is microwave high-frequency connectors, its concrete structure as shown in Figure 6, the one end is the inner wire 41 by white medium 43 parts parcels, i.e. feed probes, and this section medium 43 can divest after in sub-miniature A connector 4 is arranged on antenna array structure.The other end of sub-miniature A connector 4 has for connection and is used for screw thread 44 to the coaxial line of array antenna feed, and this end skin is metal outer conductor 42, after installing and base plate 1 keep in touch.The mid portion of sub-miniature A connector 4 is the base parts 46 with two fixing holes 45.Particularly, sub-miniature A connector 4 can be selected SMA-KFD142 type joint, and it is that 2.02 polytetrafluoroethylene is made that its inner wire 41 diameter 1.3mm, outer conductor 42 diameter 4.1mm, intermediate medium 43 can adopt dielectric constant.When mounted, inner wire feed probes 41 1 ends are upwards inserted from base plate 1 below the hole that base plate 1 reserves, and and then make inner wire 41 insert from antenna 2 belows Kong Bingyu antenna 2 contacts that antennas 2 reserve, until base part 46 contacts with base plate 1 below, this moment, the outer conductor 42 of sub-miniature A connector 4 also contacted with base plate 1.At this moment, pass two holes 45 on base plate 1 and pedestal 46 with two screws, sub-miniature A connector 4 is fixed on base plate 1, then inner wire 41 is welded on antenna 2.From above-mentioned installation process as seen, the length of inner wire 41 and outer conductor 42 can be determined flexibly according to parameters such as vertical ranges between thickness, base plate 1 and the antenna 2 of base plate 1.
One end of sub-miniature A connector 4 threaded 44 is used for connecting coaxial line, and this coaxial line and sub-miniature A connector 4 are used for jointly to the array antenna feed.In this specific embodiment, this coaxial line can adopt 50 ohmage coaxial lines, its inner conductor outer diameter 0.92mm, and the outer conductor internal diameter is 2.98mm.
Also be connected with two plastic support 5 that be used for to support this bay 2 between each bay 2 and base plate 1, these plastic support 5 can be separately fixed on bay 2 and base plate 1 by the form such as screwed hole two ends.In this specific embodiment, this plastic support 5 can be that overall diameter is the screw thread plastic support of 3mm (identical with the diameter in the hole that is used for the fixed plastics pillar on base plate 1/ bay 2).
In this specific embodiment shown in Figure 1, wish that the aerial array read write line that forms provides same-amplitude but the energy of out of phase by a plurality of antenna elements, its beam scanning all can realize four scanning beam directions of-60 ° ,-20 °, 20 ° and 60 ° on horizontal plane, two two dimensional surfaces of vertical plane, thereby this antenna array structure is provided with 9 bays 2 in the mode that the bay 2 of equal number all is set on the length of base plate 1 and cross direction, and these 9 bays 2 form the aerial array of 3x 3.Wherein, each bay 2 be arranged in parallel with this base plate 1, between them by be arranged at bay 2 ends, two the ground short circuit sheets 3 perpendicular to this bay 2 and this base plate 1 connect simultaneously.When the quantity of bay 2 is 9, can arrange on the plane above base plate 1 in order to make these antenna array element 2, the length and width of each bay 2 a cun chi can be less than 100mm x 100mm.In this specific embodiment, the length and width of each bay 2 a cun chi is 85mm x 65mm, and thickness is 1.6mm.
Above-mentioned two planes are corresponding 8 feeds input of beam scanning of totally 8 directions, and 9 corresponding 9 feeds outputs of bay 2, and the feeding network that therefore coordinates with antenna array structure in above-described embodiment can adopt the Butler matrix realization of a 8x9.But, realize comparatively complicatedly due to the Butler matrix of a 8x9, design difficulty is larger, therefore in the present embodiment, becomes 2 4x3Butler matrixes to realize the Butler matrix conversion of this 8x9.The Core Feature of this feeding network is, by the wave beam forming of 8 directions being changed into 4 direction wave beam formings on two planes, and realizes the function of the Butler matrix of 8x9 with this.
Particularly, this transmission network comprises the Butler matrix of 2 4x3,6 one minute three power splitters and 9 two-in-one power combiners.Upper 3 one minute three power splitters of Butler matrix back connection of each 4x3, thus a four directions on the plane completed to beam scanning.Then by 9 two-in-one power combiners, be connected to each 9 output ports of two parts on 9 feeder equipments 4 of antenna array structure by coaxial line, and then be connected with 9 bays 2 of the structure of antenna array, and give selectively this 9 bay 2 feeds.Therefore, antenna array structure can realize on level, vertical two two dimensional surfaces, the beam scanning of 8 directions altogether of each 4 directions.
Other embodiment
In the above in embodiment, due to the bay that is provided with equal number on the length of base plate and cross direction (above be 3 in embodiment, can be also 2 or 4 etc. in fact), therefore the aerial array read write line that forms thus provides same-amplitude but the energy of out of phase by a plurality of antenna elements, and its beam scanning all can realize four scanning beam directions of-60 ° ,-20 °, 20 ° and 60 ° on horizontal plane, two two dimensional surfaces of vertical plane.Certainly, if be only required in a parameter request on two dimensional surface, also can be under the cooperation of the feeding network of respective design, the bay 2 of varying number is set on the length and width direction of antenna, as 3 * 2,4 * 3 etc., this can arrange flexibly according to the requirement of rfid interrogator size and performance parameter.
As seen from the above technical solution, the antenna array structure in the specific embodiment of the invention forms array with two short circuit flat plane antennas of falling F as basic antenna element, is operated in the European RFID frequency range of 865-868MHz.This pair of short circuit plane antenna structure of falling F reduced antenna size with respect to the traditional antenna structure, the omnirange far-field characteristic of each basic antenna element all covers the scope of-60 ° to 60 °, so the aerial array read write line that forms thus provides same-amplitude but the energy of out of phase by a plurality of antenna elements, its beam scanning can realize four scanning beam directions of-60 ° ,-20 °, 20 ° and 60 °.
The above is only preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, is equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a rfid interrogator antenna array structure, is characterized in that, described rfid interrogator antenna array structure comprises the bay (2) of a base plate (1) and a plurality of common formation aerial arrays,
Described base plate (1) is connected with each described bay (2) by at least one ground short circuit device (3), also is connected with a feeder equipment (4) between each described bay (2) and described base plate (1).
2. rfid interrogator antenna array structure according to claim 1, is characterized in that,
Also be connected with the bracing or strutting arrangement (5) that at least one is used for supporting described bay (2) between each described bay (2) and described base plate (1).
3. rfid interrogator antenna array structure according to claim 1, is characterized in that,
Described base plate (1) is rectangle plane, and described bay (2) is the rectangle plane parallel with described base plate (1).
4. rfid interrogator antenna array structure according to claim 3, is characterized in that,
Described base plate (1) is long and the wide sheet metal that all is not more than 300mm, and described bay (2) is the FR4 flat board that the surface is covered with metal.
5. rfid interrogator antenna array structure according to claim 1, is characterized in that,
Described ground short circuit device (3) is simultaneously perpendicular to the sheet metal of described bay (2) and described base plate (1), and the one end is arranged at the end of described bay (2), and the other end is connected with the surface of described base plate (1).
6. rfid interrogator antenna array structure according to claim 1, is characterized in that,
Described feeder equipment (4) is simultaneously perpendicular to described bay (2) and described base plate (1), the one end is used for connecting coaxial line, and the outer conductor (42) of described feeder equipment (4) is contacted with described base plate (1), the other end is inner wire feed probes (41), contacts with described bay (2) by the hole on described bay (2).
7. rfid interrogator antenna array structure according to claim 1, is characterized in that,
Described feeder equipment (4) comprises be used to the fixed mechanism (46) that is fixed on described base plate (1), the corresponding mechanism that comprises for fixing described feeder equipment (4) on described base plate (1).
8. rfid interrogator antenna array structure according to claim 1, is characterized in that,
Described feeder equipment (4) is sub-miniature A connector (4), the one end is the inner wire feed probes (41) that contacts with described bay (2), and the other end has for connection and is used for helicitic texture (44) to the coaxial line of described antenna array structure feed.
9. the described rfid interrogator antenna array structure of any one according to claim 1-8, is characterized in that,
In described antenna array structure, described bay (2) is identical with arrangement number on cross direction in the length of described base plate (1), arranges in 2 * 2,3 * 3 or 4 * 4 modes.
10. one kind comprises the rfid interrogator as the described rfid interrogator antenna array structure of any one claim in claim 1-9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012101357515A CN103384031A (en) | 2012-05-03 | 2012-05-03 | Rfid reader antenna array structure and rfid reader |
| PCT/EP2013/059210 WO2013164433A1 (en) | 2012-05-03 | 2013-05-03 | Rfid reader antenna array structure and rfid reader |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012101357515A CN103384031A (en) | 2012-05-03 | 2012-05-03 | Rfid reader antenna array structure and rfid reader |
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| CN103384031A true CN103384031A (en) | 2013-11-06 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105103088A (en) * | 2014-01-30 | 2015-11-25 | 施政 | Apparatus and method for eliminating blind spot in RF antenna array |
| WO2016049848A1 (en) * | 2014-09-30 | 2016-04-07 | Hong Kong R&D Centre for Logistics and Supply Chain Management Enabling Technologies Limited | Radio frequency identification (rfid) tag |
| CN107994315A (en) * | 2017-12-28 | 2018-05-04 | 上海互惠信息技术有限公司 | A kind of universal RFID reading and writing device antenna array and its auxiliary products |
| CN109066070A (en) * | 2018-08-07 | 2018-12-21 | 福州福大信捷天线技术有限公司 | RFID reader-writer antenna and use method thereof |
| CN113420573A (en) * | 2020-09-23 | 2021-09-21 | 阿里巴巴集团控股有限公司 | Phased array system and phase setting method |
| CN113657572A (en) * | 2021-08-19 | 2021-11-16 | 龙兴(杭州)航空电子有限公司 | Split type electronic tags |
| CN116165448A (en) * | 2023-02-20 | 2023-05-26 | 山东华翼微电子技术股份有限公司 | System and method for testing material plate in RFID |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10511097B2 (en) * | 2017-05-12 | 2019-12-17 | Energous Corporation | Near-field antennas for accumulating energy at a near-field distance with minimal far-field gain |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060145926A1 (en) * | 2004-12-08 | 2006-07-06 | Won-Kyu Choi | Dual polarization antenna and RFID reader employing the same |
| CN101807749A (en) * | 2009-02-13 | 2010-08-18 | 公安部第三研究所 | Circularly polarized array antenna for RFID (Radio Frequency Identification) vehicle management field |
| US7796041B2 (en) * | 2008-01-18 | 2010-09-14 | Laird Technologies, Inc. | Planar distributed radio-frequency identification (RFID) antenna assemblies |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW527754B (en) * | 2001-12-27 | 2003-04-11 | Ind Tech Res Inst | Dual-band planar antenna |
-
2012
- 2012-05-03 CN CN2012101357515A patent/CN103384031A/en active Pending
-
2013
- 2013-05-03 WO PCT/EP2013/059210 patent/WO2013164433A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060145926A1 (en) * | 2004-12-08 | 2006-07-06 | Won-Kyu Choi | Dual polarization antenna and RFID reader employing the same |
| US7796041B2 (en) * | 2008-01-18 | 2010-09-14 | Laird Technologies, Inc. | Planar distributed radio-frequency identification (RFID) antenna assemblies |
| CN101807749A (en) * | 2009-02-13 | 2010-08-18 | 公安部第三研究所 | Circularly polarized array antenna for RFID (Radio Frequency Identification) vehicle management field |
Non-Patent Citations (1)
| Title |
|---|
| MIN YI等: "A novel antenna with a feed networks for RFID reader at ultra high frequency", 《11TH IEEE SINGAPORE INTERNATIONAL CONFERENCE ON,IEEE,PISCATAWAY,NJ,USA》 * |
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| CN105103088A (en) * | 2014-01-30 | 2015-11-25 | 施政 | Apparatus and method for eliminating blind spot in RF antenna array |
| WO2016049848A1 (en) * | 2014-09-30 | 2016-04-07 | Hong Kong R&D Centre for Logistics and Supply Chain Management Enabling Technologies Limited | Radio frequency identification (rfid) tag |
| CN107994315A (en) * | 2017-12-28 | 2018-05-04 | 上海互惠信息技术有限公司 | A kind of universal RFID reading and writing device antenna array and its auxiliary products |
| CN107994315B (en) * | 2017-12-28 | 2024-05-31 | 上海互惠信息技术有限公司 | Antenna array of universal RFID reader-writer and matched product thereof |
| CN109066070A (en) * | 2018-08-07 | 2018-12-21 | 福州福大信捷天线技术有限公司 | RFID reader-writer antenna and use method thereof |
| CN109066070B (en) * | 2018-08-07 | 2024-02-06 | 福州福大信捷天线技术有限公司 | RFID reader-writer antenna and use method thereof |
| CN113420573A (en) * | 2020-09-23 | 2021-09-21 | 阿里巴巴集团控股有限公司 | Phased array system and phase setting method |
| CN113420573B (en) * | 2020-09-23 | 2023-12-15 | 阿里巴巴集团控股有限公司 | Phased array system and phase setting method |
| CN113657572A (en) * | 2021-08-19 | 2021-11-16 | 龙兴(杭州)航空电子有限公司 | Split type electronic tags |
| CN116165448A (en) * | 2023-02-20 | 2023-05-26 | 山东华翼微电子技术股份有限公司 | System and method for testing material plate in RFID |
| CN116165448B (en) * | 2023-02-20 | 2024-08-27 | 山东华翼微电子技术股份有限公司 | System and method for testing material plate in RFID |
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| WO2013164433A1 (en) | 2013-11-07 |
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