CN106056200A - RFID label - Google Patents
RFID label Download PDFInfo
- Publication number
- CN106056200A CN106056200A CN201610539209.4A CN201610539209A CN106056200A CN 106056200 A CN106056200 A CN 106056200A CN 201610539209 A CN201610539209 A CN 201610539209A CN 106056200 A CN106056200 A CN 106056200A
- Authority
- CN
- China
- Prior art keywords
- microstrip
- microstrip line
- feed
- reflecting plate
- rfid label
- 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.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
- G06K19/0772—Physical layout of the record carrier
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
- G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
- G06K19/07773—Antenna details
- G06K19/07775—Antenna details the antenna being on-chip
-
- 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
- H01Q1/2225—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 active tags, i.e. provided with its own power source or in passive tags, i.e. deriving power from RF signal
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
Abstract
The invention discloses an RFID label. The RFID label comprises a rectangular-shaped PCB reflection plate, and one surface of the PCB reflection plate is provided with a microstrip antenna; the other surface of the PCB reflection plate is provided with an RFID chip, the RFID chip is in signal connection with the microstrip antenna, and the microstrip antenna comprises a first microstrip unit and a second microstrip unit which are symmetrical at an upper position and a lower position and have the same shape; and the RFID label further comprises a first feed sheet and a second feed sheet which are used for feeding, the first feed sheet and the second feed sheet are arranged at the same side of the PCB reflection plate, the first feed sheet is used for electrical connection with the first microstrip unit, and the second feed sheet is used for electrical connection with the second microstrip unit. Through reasonable arrangement, the RFID label has quite good RFID label features, is far in distance and has excellent antenna performance.
Description
Technical field
The present invention relates to a kind of RFID label tag.
Background technology
RF identification i.e. RFID(Radio Frequency Identification) technology, also known as electronic tag, wireless
RF identification, is that one can be passed through radio signals identification specific objective and read and write related data, and without identifying that system is with special
Machinery or the communication technology of optical contact is set up between setting the goal.Conventional passive RFID has low frequency (125k ~ 134.2K), height
Frequently (13.56Mhz), hyperfrequency (860-960MHz).RFID label antenna as the important component part of rfid system, it
Performance is by the efficiency of whole for strong influence rfid system and quality.The principal element affecting RFID antenna performance includes antenna
Size, working frequency range, impedance and gain etc., therefore, if it is desirable to the antenna of a preferable RFID, just should have preferably
Antenna performance.
Summary of the invention
It is an object of the invention to overcome disadvantages described above, it is provided that a kind of RFID label tag.
For achieving the above object, the concrete scheme of the present invention is as follows: a kind of RFID label tag, includes the PCB reflection of rectangle
Plate, the one side of described PCB reflecting plate is provided with microstrip antenna；The another side of described PCB reflecting plate is provided with RFID chip, RFID core
Sheet is connected with microstrip antenna signal, and described microstrip antenna includes the first microstrip element symmetrical above and below, that shape is identical and
Two microstrip elements；Also include the first feed tab and the second feed tab, the first feed tab and the second feed tab for feed to set
In PCB reflecting plate homonymy, the first feed tab is for being connected with the first microstrip element feed, and the second feed tab is used for and the second micro-strip
Unit feed connects.
Wherein, described first microstrip element and the second microstrip element all include the first microstrip line, from the first micro-strip alignment
The second microstrip line that PCB reflecting plate center is extended, the 3rd micro-strip extended from the second micro-strip alignment PCB reflecting plate center
Line；One end of described first microstrip line, one end of the second microstrip line, one end three alignment of the 3rd microstrip line, described first micro-
The other end of band wire, the other end of the second microstrip line, the 3rd microstrip line other end three stepped；Described 3rd microstrip line
Extend to PCB reflecting plate center and have multiple arch-shaped radiation ring arm；Be equipped with in each radiation ring arm one end be arc another
End is windowed for the decoupling of rectangle；Described first microstrip line is provided with multiple rectangle pit away from the side at PCB reflecting plate center；
Described first feed tab is electrically connected with the first microstrip line of the first microstrip element；Described second feed tab and the second micro-strip
3rd microstrip line of unit is electrically connected with by a feed faciola.
Wherein, the decoupling of each 3rd microstrip line quantity of windowing is 9, and the length that the decoupling of centre is windowed is the longest, from
The length that the decoupling that middle decoupling is windowed to both sides is windowed reduces successively.
Wherein, the rectangle pit quantity of each first microstrip line is 29-35.
Wherein, the decoupling of each 3rd microstrip line quantity of windowing is N number of, and the width of rectangle pit is set to K, then the second micro-strip
Length L=9.5N*K of line.
Wherein, an isolation channel it is provided with in the middle of described first microstrip element and the second microstrip element, in described isolation channel
Being filled with quasiconductor, described quasiconductor is silicon dioxide；
Wherein, the parasitic oscillator being located at PCB reflecting plate away from the side being provided with the first feed tab and the second feed tab is also included
Unit, described parasitic oscillator unit includes the first rectangular arm and extends to the first microstrip element side from the first rectangular arm
Second rectangular arm；
Wherein, the periphery of PCB reflecting plate is additionally provided with a circle isolation micro-strip circle；
Wherein, described PCB reflecting plate periphery is also enclosed with marine glue, and described RFID chip is located in marine glue；
The invention have the benefit that, by reasonably arranging, the present invention has preferable RFID label tag characteristic, distance is remote,
Antenna performance aspect performance excellence.
Accompanying drawing explanation
Fig. 1 is the side view of the present invention；
Fig. 2 is the structural representation of the microstrip antenna of the present invention；
Fig. 3 is the structural representation of the first micro-strip；
Fig. 4 is the structural representation of the second micro-strip；
Fig. 5 is the frequency range test figure of the microstrip antenna of the present invention；
Fig. 6 is the microstrip antenna of present invention frequency range test figure under special parameter；
Fig. 7 is the directional diagram of the microstrip antenna of the present invention；
Description of reference numerals in Fig. 1 to Fig. 7:
1-marine glue；2-RFID chip；
G1-PCB reflecting plate；G2-parasitism oscillator unit；G3-isolates micro-strip circle；G4-isolation channel；G51-the first feed tab； G52-
Second feed tab；
G61-the first microstrip line；G62-the second microstrip line；G63-the 3rd microstrip line；G64-decoupling is windowed；G65-radiates ring arm；
G66-rectangle pit.
Detailed description of the invention
The present invention is further detailed explanation with specific embodiment below in conjunction with the accompanying drawings, is not the reality of the present invention
The scope of executing is confined to this.
As shown in Figures 1 to 7, a kind of RFID label tag described in the present embodiment, include the PCB reflecting plate G1 of rectangle, institute
The one side stating PCB reflecting plate G1 is provided with microstrip antenna；The another side of described PCB reflecting plate G1 is provided with RFID chip 2, RFID core
Sheet 2 is connected with microstrip antenna signal, and described microstrip antenna includes the first microstrip element symmetrical above and below, that shape is identical and
Two microstrip elements；Also include the first feed tab G51 for feed and the second feed tab G52, the first feed tab G51 and second
Feed tab G52 is located at PCB reflecting plate G1 homonymy, and the first feed tab G51 is for being connected with the first microstrip element feed, and second feeds
Sheet G52 is for being connected with the second microstrip element feed；By reasonably arranging, the present invention has preferable RFID label tag characteristic,
Distance is remote, performance excellence in terms of antenna performance.
A kind of RFID label tag described in the present embodiment, described first microstrip element and the second microstrip element all include first
Microstrip line G61, the second microstrip line G62 extended to PCB reflecting plate G1 center from the first microstrip line G61, from the second microstrip line
The 3rd microstrip line G63 that G62 extends to PCB reflecting plate G1 center；One end of described first microstrip line G61, the second microstrip line
One end of G62, one end three alignment of the 3rd microstrip line G63, the other end of described first microstrip line G61, the second microstrip line G62
The other end, the 3rd microstrip line G63 other end three stepped；Described 3rd microstrip line G63 is to PCB reflecting plate G1 center
Extend and have multiple arch-shaped radiation ring arm G65；Be equipped with in each radiation ring arm G65 one end be the arc other end be rectangle
Decouple the G64 that windows；Described first microstrip line G61 is provided with multiple rectangle pit G66 away from the side at PCB reflecting plate G1 center；Institute
The the first microstrip line G61 stating the first feed tab G51 and the first microstrip element is electrically connected with；Described second feed tab G52 and second
3rd microstrip line G63 of microstrip element is electrically connected with by a feed faciola.Set by the microstrip circuit structure not less than 550 times
Meter, and by being not less than under 500 l-G simulation tests and parameter adjustment, finally determine above-mentioned microstrip antenna structure, this micro-strip
Antenna possesses wider frequency range and preferable isolation and directivity and gain performance.Such as Fig. 5, this beamwidth of antenna can
It is up to 1.7GHz to 2.65GHz by frequency range；Substantially meeting the requirement of communications band, its gain is the highest, average in frequency band
Gain is more than 8.952dBi；Meet actually used needs.
A kind of RFID label tag described in the present embodiment, the decoupling of each 3rd microstrip line G63 G64 quantity of windowing is 9, and
The window length of G64 of middle decoupling is the longest, from middle decoupling window G64 to the decoupling on both sides window G64 length successively
Reduce.When meeting this quantity when, its data such as Fig. 6.This integrated antenna system bandwidth available frequency range reaches
1.6GHz to 2.85GHz；Its gain the most substantially increases, and in frequency band, average gain is more than 9.4dBi, compares rising about 0.3dBi；
If additionally isolation in its isolation figure frequency band, isolation performance preferably, such as Fig. 6, can be seen that in frequency range in S3
Interior isolation is more than 25.5dB.Its directivity, as described in Figure 7, it is omni-directional antenna.
A kind of RFID label tag described in the present embodiment, the rectangle pit G66 quantity of each first microstrip line G61 is 29-35
Individual；A kind of RFID label tag described in the present embodiment, the decoupling of each 3rd microstrip line G63 G64 quantity of windowing is N number of, and rectangle is recessed
The width of hole G66 is set to K, then length L=9.5N*K of the second microstrip line G62.After arranging above-mentioned parameter restriction, by a large amount of real
Testing and emulate discovery, its gain is more stable, and isolation is also maintained at higher level.Above-mentioned parameter is in constantly test and adjusts
In draw, it is the design parameter that the most stable and performance is optimal, and concrete actual test knot HFSS15 computed in software draws, this entirety
System antenna bandwidth available frequency range is at 1.6GHz to 2.8GHz internal frequency modulation；In frequency band, average gain is more than 9.35dBi, resistance
Anti-reduction；In frequency range, isolation is more than 26dB；Finding in reality is tested, the change of external environment, such as temperature, magnetic field
The change of impact within the specific limits, such as temperature amplitude of variation about 10 degree, employing above-mentioned parameter and during special value,
Its stability is very strong, and frequency range conservation degree is preferable.
A kind of RFID label tag described in the present embodiment, is provided with one in the middle of described first microstrip element and the second microstrip element
Bar isolation channel G4, is filled with quasiconductor in described isolation channel G4, described quasiconductor is silicon dioxide；Can effectively reduce mutual coupling,
Strengthen isolation, reduce standing-wave ratio.
A kind of RFID label tag described in the present embodiment, also includes and is located at PCB reflecting plate G1 away from being provided with the first feed tab
Parasitic oscillator unit G2 of the side of G51 and the second feed tab G52, described parasitic oscillator unit G2 include the first rectangular arm and
The second rectangular arm extended to the first microstrip element side from the first rectangular arm；Parasitic oscillator unit G2G2 can be effectively increased band
Wide.
A kind of RFID label tag described in the present embodiment, the periphery of PCB reflecting plate G1 is additionally provided with a circle isolation micro-strip circle G3；Have
Effect improves isolation, reduces interference.
A kind of RFID label tag described in the present embodiment, described PCB reflecting plate G1 periphery is also enclosed with marine glue 1, described
RFID chip 2 is located in marine glue 1；Water proof and dust proof, improves service life.
The above is only a preferred embodiment of the present invention, therefore all according to the structure described in present patent application scope
Make, equivalence change that feature and principle are done or modify, be included in the protection domain of present patent application.
Claims (5)
1. a RFID label tag, it is characterised in that: include the PCB reflecting plate (G1) of rectangle, the one of described PCB reflecting plate (G1)
Face is provided with microstrip antenna；The another side of described PCB reflecting plate (G1) is provided with RFID chip (2), RFID chip (2) and micro-strip sky
Line signal connects, and described microstrip antenna includes the first microstrip element symmetrical above and below, that shape is identical and the second microstrip element；
Also include the first feed tab (G51) for feed and the second feed tab (G52), the first feed tab (G51) and the second feed
Sheet (G52) is located at PCB reflecting plate (G1) homonymy, and the first feed tab (G51) is for being connected with the first microstrip element feed, and second presents
Electricity sheet (G52) is for being connected with the second microstrip element feed；
It is provided with an isolation channel (G4) in the middle of described first microstrip element and the second microstrip element, fills out in described isolation channel (G4)
Being filled with quasiconductor, described quasiconductor is silicon dioxide.
A kind of RFID label tag the most according to claim 1, it is characterised in that: described first microstrip element and the second micro-strip list
Unit all include the first microstrip line (G61), from the first microstrip line (G61) extend to PCB reflecting plate (G1) center second micro-
Band wire (G62), the 3rd microstrip line (G63) extended to PCB reflecting plate (G1) center from the second microstrip line (G62)；Described
One end of one microstrip line (G61), one end of the second microstrip line (G62), one end three alignment of the 3rd microstrip line (G63), described
The other end of the first microstrip line (G61), the other end of the second microstrip line (G62), the 3rd microstrip line (G63) other end three in
Stepped；Described 3rd microstrip line (G63) extends to PCB reflecting plate (G1) center multiple arch-shaped radiation ring arm (G65)；
Be equipped with in each radiation ring arm (G65) one end be the arc other end be that (G64) is windowed in the decoupling of rectangle；Described first microstrip line
(G61) side away from PCB reflecting plate (G1) center is provided with multiple rectangle pit (G66)；
Described first feed tab (G51) is electrically connected with first microstrip line (G61) of the first microstrip element；Described second feed tab
(G52) the 3rd microstrip line (G63) with the second microstrip element is electrically connected with by a feed faciola.
A kind of RFID label tag the most according to claim 2, it is characterised in that: the decoupling of each 3rd microstrip line (G63) is opened
Window (G64) quantity is 9, and the window length of (G64) of the decoupling of centre is the longest, windows (G64) to both sides from middle decoupling
The window length of (G64) of decoupling reduce successively.
A kind of RFID label tag the most according to claim 2, it is characterised in that: the rectangle of each first microstrip line (G61) is recessed
Hole (G66) quantity is 29-35.
A kind of RFID label tag the most according to claim 2, it is characterised in that: set the decoupling of each 3rd microstrip line (G63)
(G64) quantity of windowing is N number of, and the width of rectangle pit (G66) is set to K, then length L=9.5N*K of the second microstrip line (G62).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610539209.4A CN106056200A (en) | 2016-07-11 | 2016-07-11 | RFID label |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610539209.4A CN106056200A (en) | 2016-07-11 | 2016-07-11 | RFID label |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106056200A true CN106056200A (en) | 2016-10-26 |
Family
ID=57185069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610539209.4A Withdrawn CN106056200A (en) | 2016-07-11 | 2016-07-11 | RFID label |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106056200A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018010607A1 (en) * | 2016-07-11 | 2018-01-18 | 谢广鹏 | Waterproof rfid tag |
| WO2018010608A1 (en) * | 2016-07-11 | 2018-01-18 | 谢广鹏 | Rfid tag |
-
2016
- 2016-07-11 CN CN201610539209.4A patent/CN106056200A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018010607A1 (en) * | 2016-07-11 | 2018-01-18 | 谢广鹏 | Waterproof rfid tag |
| WO2018010608A1 (en) * | 2016-07-11 | 2018-01-18 | 谢广鹏 | Rfid tag |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20161026 |
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| WW01 | Invention patent application withdrawn after publication |