CN106207454A - It is provided with the RFID label tag of isolation channel - Google Patents
It is provided with the RFID label tag of isolation channel Download PDFInfo
- Publication number
- CN106207454A CN106207454A CN201610539260.5A CN201610539260A CN106207454A CN 106207454 A CN106207454 A CN 106207454A CN 201610539260 A CN201610539260 A CN 201610539260A CN 106207454 A CN106207454 A CN 106207454A
- Authority
- CN
- China
- Prior art keywords
- microstrip
- microstrip line
- reflecting plate
- feed
- feed tab
- 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- Withdrawn
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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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
Landscapes
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Details Of Aerials (AREA)
Abstract
The invention discloses a kind of RFID label tag being provided with isolation channel, include the PCB reflecting plate of rectangle, 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, and RFID chip is connected with microstrip antenna signal, and described microstrip antenna includes the first microstrip element symmetrical above and below, that shape is identical and the second microstrip element；Also including the first feed tab and the second feed tab, the first feed tab and the second feed tab for feed and be located at PCB reflecting plate homonymy, the first feed tab is for being connected with the first microstrip element feed, and the second feed tab is for being connected with the second microstrip element feed；By reasonably arranging, the present invention has preferable RFID label tag characteristic, and distance is remote, performance excellence in terms of antenna performance.
Description
Technical field
The present invention relates to a kind of RFID label tag being provided with isolation channel.
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 being provided with isolation channel.
For achieving the above object, the concrete scheme of the present invention is as follows: a kind of RFID label tag being provided with isolation channel, includes square
The PCB reflecting plate of shape, 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 chip is connected with microstrip antenna signal, and described microstrip antenna includes the first micro-strip symmetrical above and below, that shape is identical
Unit and the second microstrip element；Also include the first feed tab for feed and the second feed tab, the first feed tab and the
Two feed tab are located at PCB reflecting plate homonymy, and the first feed tab is for being connected with the first microstrip element feed, and the second feed tab is used for
It is connected with the second microstrip element feed.
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 being provided with isolation channel described in the present embodiment, include the PCB of rectangle
Reflecting plate G1, the one side of described 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 chip 2 is connected with microstrip antenna signal, and described microstrip antenna includes identical first micro-of symmetrical above and below, shape
Tape cell and the second microstrip element；Also include the first feed tab G51 for feed and the second feed tab G52, the first feedback
Electricity sheet G51 and the second feed tab G52 are located at PCB reflecting plate G1 homonymy, and the first feed tab G51 is for feeding with the first microstrip element
Connecting, the second feed tab G52 is for being connected with the second microstrip element feed；By reasonably arranging, the present invention has preferably
RFID label tag characteristic, distance is remote, performance excellence in terms of antenna performance.
A kind of RFID label tag being provided with isolation channel described in the present embodiment, described first microstrip element and the second microstrip element
All include the first microstrip line G61, the second microstrip line G62 extended to PCB reflecting plate G1 center from the first microstrip line G61,
The 3rd microstrip line G63 extended to PCB reflecting plate G1 center from the second microstrip line G62；The one of described first microstrip line G61
End, one end of the second microstrip line G62, one end three alignment of the 3rd microstrip line G63, the other end of described first microstrip line G61,
The other end of the second microstrip line G62, the 3rd microstrip line G63 other end three stepped；Described 3rd microstrip line G63 to
PCB reflecting plate G1 extends at center multiple arch-shaped radiation ring arm G65；Being equipped with one end in each radiation ring arm G65 is arc
The shape other end is that the decoupling of rectangle is windowed G64；Described first microstrip line G61 is provided with many away from the side at PCB reflecting plate G1 center
Individual rectangle pit G66；First microstrip line G61 of described first feed tab G51 and the first microstrip element is electrically connected with；Described second
3rd microstrip line G63 of feed tab G52 and the second microstrip element is electrically connected with by a feed faciola.By not less than 550 times
The design of microstrip circuit structure, and by being not less than under 500 l-G simulation tests and parameter adjustment, finally determine above-mentioned micro-strip
Antenna structure, this microstrip antenna possesses wider frequency range and preferable isolation and directivity and gain performance.As
Fig. 5, this beamwidth of antenna available frequency range is up to 1.7GHz to 2.65GHz；Substantially meeting the requirement of communications band, its gain is also
Higher, in frequency band, average gain is more than 8.952dBi；Meet actually used needs.
A kind of RFID label tag being provided with isolation channel described in the present embodiment, the decoupling of each 3rd microstrip line G63 is windowed G64
Quantity is 9, and the window length of G64 of the decoupling of centre is the longest, windows to the decoupling on both sides from the middle decoupling G64 that windows
The length of G64 reduces successively.When meeting this quantity when, its data such as Fig. 6.This integrated antenna system bandwidth usable frequency model
Enclose and reached 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 S3
In frequency range, isolation is more than 25.5dB.Its directivity, as described in Figure 7, it is omni-directional antenna.
A kind of RFID label tag being provided with isolation channel described in the present embodiment, the rectangle pit G66 of each first microstrip line G61
Quantity is 29-35；A kind of RFID label tag being provided with isolation channel described in the present embodiment, 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.Arrange
After stating parameter restriction, being found by great many of experiments and emulation, its gain is more stable, and isolation is also maintained at higher level.
Above-mentioned parameter draws in constantly test and adjustment, and it is the most stable design parameter optimal with performance, and concrete actual test is tied
HFSS15 computed in software draws, this total system beamwidth of antenna available frequency range is at 1.6GHz to 2.8GHz internal frequency modulation；Frequently
In band, average gain reduces more than 9.35dBi, impedance；In frequency range, isolation is more than 26dB；Find in reality is tested,
The change of external environment, as temperature, magnetic field impact change within the specific limits, such as temperature about 10 degree amplitude change
Changing, when using above-mentioned parameter and special value, its stability is very strong, and frequency range conservation degree is preferable.
A kind of RFID label tag being provided with isolation channel described in the present embodiment, described first microstrip element and the second micro-strip list
Being provided with an isolation channel G4 in the middle of unit, be filled with quasiconductor in described isolation channel G4, described quasiconductor is silicon dioxide；Can be effective
Reduce mutual coupling, strengthen isolation, reduce standing-wave ratio.
A kind of RFID label tag being provided with isolation channel described in the present embodiment, also includes and is located at PCB reflecting plate G1 away from setting
Parasitic oscillator unit G2 of the side of the first feed tab G51 and the second feed tab G52, described parasitic oscillator unit G2 is had to include
First rectangular arm and the second rectangular arm extended to the first microstrip element side from the first rectangular arm；Parasitic oscillator unit G2G2
Bandwidth can be effectively increased.
A kind of RFID label tag being provided with isolation channel described in the present embodiment, the periphery of PCB reflecting plate G1 be additionally provided with a circle every
From micro-strip circle G3；It is effectively improved isolation, reduces interference.
A kind of RFID label tag being provided with isolation channel described in the present embodiment, described PCB reflecting plate G1 periphery is also enclosed with anti-
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. the RFID label tag being provided with isolation channel, it is characterised in that: including the PCB reflecting plate (G1) of rectangle, described PCB is anti-
The one side penetrating 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, described microstrip antenna include the first microstrip element symmetrical above and below, that shape is identical and
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 tab (G52) is located at PCB reflecting plate (G1) homonymy, and the first feed tab (G51) is used for and the first microstrip element
Feed connects, and the second feed tab (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；
Also include and be located at PCB reflecting plate (G1) away from the side being provided with the first feed tab (G51) and the second feed tab (G52)
Parasitic oscillator unit (G2), described parasitic oscillator unit (G2) includes the first rectangular arm and from the first rectangular arm to the first micro-strip
The second rectangular arm that unit side is extended；
The periphery of PCB reflecting plate (G1) is additionally provided with circle isolation micro-strip circle (G3)；
Described PCB reflecting plate (G1) periphery is also enclosed with marine glue (1), and described RFID chip (2) is located in marine glue (1).
A kind of RFID label tag being provided with isolation channel the most according to claim 1, it is characterised in that: described first microstrip element
And second microstrip element all include the first microstrip line (G61), prolong to PCB reflecting plate (G1) center from the first microstrip line (G61)
The second microstrip line (G62) stretched out, the 3rd microstrip line extended to PCB reflecting plate (G1) center from the second microstrip line (G62)
(G63)；One end of described first microstrip line (G61), one end of the second microstrip line (G62), one end three of the 3rd microstrip line (G63)
Person aligns, the other end of described first microstrip line (G61), the other end of the second microstrip line (G62), the 3rd microstrip line (G63)
Other end three is stepped；Described 3rd microstrip line (G63) extends to PCB reflecting plate (G1) center multiple arch-shaped spoke
Penetrate 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；Institute
State the first microstrip line (G61) and be provided with multiple rectangle pit (G66) away from the side at PCB reflecting plate (G1) center；
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 being provided with isolation channel the most according to claim 2, it is characterised in that: each 3rd microstrip line
(G63) decoupling (G64) quantity of windowing is 9, and the window length of (G64) of the decoupling of centre is the longest, opens from middle decoupling
The window length of (G64) of window (G64) to the decoupling on both sides reduces successively.
A kind of RFID label tag being provided with isolation channel the most according to claim 2, it is characterised in that: each first microstrip line
(G61) rectangle pit (G66) quantity is 29-35.
A kind of RFID label tag being provided with isolation channel the most according to claim 2, it is characterised in that: set each 3rd microstrip line
(G63) decoupling (G64) quantity of windowing is N number of, and the width of rectangle pit (G66) is set to K, then the length of the second microstrip line (G62)
Degree L=9.5N*K.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610539260.5A CN106207454A (en) | 2016-07-11 | 2016-07-11 | It is provided with the RFID label tag of isolation channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610539260.5A CN106207454A (en) | 2016-07-11 | 2016-07-11 | It is provided with the RFID label tag of isolation channel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106207454A true CN106207454A (en) | 2016-12-07 |
Family
ID=57474084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610539260.5A Withdrawn CN106207454A (en) | 2016-07-11 | 2016-07-11 | It is provided with the RFID label tag of isolation channel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106207454A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018010608A1 (en) * | 2016-07-11 | 2018-01-18 | 谢广鹏 | Rfid tag |
-
2016
- 2016-07-11 CN CN201610539260.5A patent/CN106207454A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018010608A1 (en) * | 2016-07-11 | 2018-01-18 | 谢广鹏 | Rfid tag |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20161207 |