CN113627580A - Electronic tag antenna with characteristic capacitor - Google Patents
Electronic tag antenna with characteristic capacitor Download PDFInfo
- Publication number
- CN113627580A CN113627580A CN202010383785.0A CN202010383785A CN113627580A CN 113627580 A CN113627580 A CN 113627580A CN 202010383785 A CN202010383785 A CN 202010383785A CN 113627580 A CN113627580 A CN 113627580A
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- China
- Prior art keywords
- characteristic
- electronic tag
- antenna
- contact members
- tag antenna
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- 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.)
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Classifications
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- 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
- G06K19/07788—Antenna details the antenna being of the capacitive type
-
- 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
- G06K19/073—Special arrangements for circuits, e.g. for protecting identification code in memory
- G06K19/07309—Means for preventing undesired reading or writing from or onto record carriers
- G06K19/07372—Means for preventing undesired reading or writing from or onto record carriers by detecting tampering with the circuit
- G06K19/07381—Means for preventing undesired reading or writing from or onto record carriers by detecting tampering with the circuit with deactivation or otherwise incapacitation of at least a part of the circuit upon detected tampering
- G06K19/0739—Means for preventing undesired reading or writing from or onto record carriers by detecting tampering with the circuit with deactivation or otherwise incapacitation of at least a part of the circuit upon detected tampering the incapacitated circuit being part of an antenna
-
- 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
- G06K19/07777—Antenna details the antenna being of the inductive type
- G06K19/07779—Antenna details the antenna being of the inductive type the inductive antenna being a coil
Abstract
The invention provides an electronic tag antenna with characteristic capacitance, which comprises an antenna coil, a characteristic capacitance pole plate, two first contact members and at least two second contact members, wherein the characteristic capacitance pole plate is used as corresponding identity characteristics, and a desired characteristic capacitance value is calculated by connecting the at least two second contact members corresponding to the characteristic capacitance pole plate and is stored in an electronic tag chip, so that an electronic tag formed by the electronic tag antenna and the electronic tag chip together has a unique physical characteristic record, thereby improving the tamper resistance and traceability of the electronic tag.
Description
Technical Field
The invention relates to the technical field of passive electronic tags, in particular to an electronic tag antenna with characteristic capacitance.
Background
The electronic tag RFID comprises two functional parts, namely an electronic tag antenna and an electronic tag chip, wherein the electronic tag antenna is used for providing energy and communication for the electronic tag chip, and the electronic tag chip is used for storing information and communicating with a tag reader-writer through the electronic tag antenna. The electronic tag antenna has a vital function on power supply and communication of the passive electronic tag RFID, and in the actual use process, the electronic tag antenna can be interfered by mechanical physical action or electrical physical action, so that the physical characteristics, particularly the electrical physical characteristics of the electronic tag antenna are changed, and the normal work of the passive electronic tag RFID is influenced. For the above situation, the prior art cannot timely and accurately identify the occurrence of the physical characteristics of the electronic tag antenna, which is not favorable for ensuring the normal operation of the passive electronic tag RFID.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides an electronic tag antenna with a characteristic capacitor, which comprises an antenna coil, a characteristic capacitor polar plate, two first contact components and at least two second contact components; wherein, the two first contact point components are respectively connected with two ends of the antenna coil; the at least two second contact members are respectively connected with the characteristic capacitance pole plates; the two first contact members and the at least two second contact members are relatively independent; therefore, the electronic tag antenna with the characteristic capacitance takes the characteristic capacitance pole plate as a corresponding identity characteristic, and calculates a corresponding characteristic capacitance value by connecting at least two second contact members corresponding to the characteristic capacitance pole plate and stores the characteristic capacitance value in the electronic tag chip, so that an electronic tag jointly composed of the electronic tag antenna and the electronic tag chip has a unique physical characteristic record, and the tamper resistance and the traceability of the electronic tag are improved.
The invention provides an electronic tag antenna with a characteristic capacitor, which is characterized in that:
the electronic tag antenna with the characteristic capacitor comprises an antenna coil, a characteristic capacitor polar plate, two first contact point members and at least two second contact point members; wherein the content of the first and second substances,
the two first contact point components are respectively connected with two ends of the antenna coil;
the at least two second contact members are respectively connected with the characteristic capacitance pole plates;
the two first contact members and the at least two second contact members are relatively independent;
further, there is no resistive connection between the two first contact means and the at least two second contact means;
further, the electronic tag antenna further comprises an antenna substrate; wherein the content of the first and second substances,
the antenna coil, the characteristic capacitive plate, the two first contact members and the at least two second contact members are all disposed on the antenna substrate;
the antenna substrate is made of a non-conductive material;
further, the antenna substrate includes a base portion and an element mounting region portion; wherein the content of the first and second substances,
the component mounting region portion is obtained by a patterned trench formed on the base body portion by etching, and the antenna coil, the characteristic capacitance plate, the two first contact members and the at least two second contact members are respectively disposed on the component mounting region portion;
alternatively, the first and second electrodes may be,
the non-conductive material forming the antenna substrate is PET, PVC, polyimide or epoxy resin;
further, the antenna coil and the characteristic capacitance plate are respectively made of conductive materials;
the conductive material comprises a metal material or a nano conductive material;
further, the characteristic capacitive plate comprises at least one capacitive element;
the at least one capacitance element is connected in at least one of series connection, parallel connection and series-parallel mixed connection;
further, the characteristic capacitive plate comprises at least one resistive element or does not comprise any resistive element; wherein the content of the first and second substances,
the at least one resistive element is connected in series with the at least one capacitive element;
further, the characteristic capacitive plate comprises at least three capacitive elements;
when the number of the second contact members in the electronic tag antenna is more than two, the at least three capacitive elements are arranged between any two of the at least two second contact members;
the at least three capacitance elements are connected in at least one of a single connection, a series connection, a parallel connection and a series-parallel mixed connection;
further, the characteristic capacitive plate comprises at least one resistive element or does not comprise any resistive element; wherein the content of the first and second substances,
the at least one resistive element is connected in series with the at least one capacitive element;
further, the two first contact members are electromagnetic induction type contact members, and the at least two second contact members are wired terminal contact members.
Compared with the prior art, the electronic tag antenna with the characteristic capacitor comprises an antenna coil, a characteristic capacitor plate, two first contact members and at least two second contact members; wherein, the two first contact point components are respectively connected with two ends of the antenna coil; the at least two second contact members are respectively connected with the characteristic capacitance pole plates; the two first contact members and the at least two second contact members are relatively independent; therefore, the electronic tag antenna with the characteristic capacitance takes the characteristic capacitance pole plate as a corresponding identity characteristic, and calculates a corresponding characteristic capacitance value by connecting at least two second contact members corresponding to the characteristic capacitance pole plate and stores the characteristic capacitance value in the electronic tag chip, so that an electronic tag jointly composed of the electronic tag antenna and the electronic tag chip has a unique physical characteristic record, and the tamper resistance and the traceability of the electronic tag are improved.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an electronic tag antenna with a characteristic capacitor according to the present invention.
Fig. 2 to 6 are schematic circuit structures of a characteristic capacitor plate in an electronic tag antenna with a characteristic capacitor according to the present invention.
Reference numerals: 1. an antenna coil; 2. a characteristic capacitance plate; 3. a first contact member; 4. a second contact member; 5. an antenna substrate; 6. a capacitive element; 7. a resistive element.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a schematic structural diagram of an electronic tag antenna with a characteristic capacitor according to an embodiment of the present invention. The electronic tag antenna with the characteristic capacitor comprises an antenna coil 1, a characteristic capacitor plate 2, two first contact point components and at least two second contact point components 4; wherein the content of the first and second substances,
the two first contact members 3 are connected to both ends of the antenna coil 1, respectively;
the at least two second contact members 4 are respectively connected with the characteristic capacitance plate 2;
the two first contact members 3 and the at least two second contact members 4 are relatively independent.
The electronic tag antenna with the characteristic capacitance is characterized in that a characteristic capacitance polar plate is additionally arranged on the basis that the conventional electronic tag antenna comprises a conventional antenna coil, meanwhile, a first contact member and a second contact member are respectively arranged on the antenna coil and the characteristic capacitance polar plate, the characteristic capacitance polar plate serves as corresponding identity characteristics, corresponding characteristic capacitance values are calculated by connecting at least two second contact members corresponding to the characteristic capacitance polar plate and stored in an electronic tag chip, and the electronic tag jointly formed by the electronic tag antenna and the electronic tag chip has a unique physical characteristic record, so that the tamper resistance and the traceability of the electronic tag are improved.
Preferably, there is no resistive connection between the two first contact members 3 and the at least two second contact members 4, which ensures that the antenna coil and the characteristic capacitive plate can operate independently of each other and do not interfere with each other.
Preferably, the electronic tag antenna further comprises an antenna substrate 5; wherein the content of the first and second substances,
the antenna coil 1, the characteristic capacitive plate 2, the two first contact members 3 and the at least two second contact members 4 are all arranged on the antenna substrate 5;
the antenna substrate 5 is made of a non-conductive material.
The arrangement stability of the antenna coil, the characteristic capacitance polar plate, the first contact component and the second contact component can be ensured through the antenna substrate, so that the mechanical stability of the electronic tag antenna is ensured; in addition, the antenna substrate is made of non-conductive materials, so that the antenna substrate can be prevented from generating electromagnetic interference on the antenna coil and the characteristic capacitor plate.
Preferably, the antenna substrate 5 includes a base portion and an element mounting region portion; wherein the content of the first and second substances,
the component mounting region portion is obtained by a patterned trench etched on the base body portion, and the antenna coil 1, the characteristic capacitance plate 2, the two first contact members 3, and the at least two second contact members 4 are respectively provided in the component mounting region portion.
The antenna coil, the characteristic capacitance pole plate and the contact component can be arranged according to preset positions by arranging the element placing area part on the antenna substrate, so that the manufacturing difficulty of the electronic tag antenna is reduced.
Preferably, the non-conductive material constituting the antenna substrate 5 is PET, PVC, polyimide, or epoxy.
The non-conductive material is made of PET, PVC, polyimide or epoxy resin, so that the manufacturing cost of the antenna substrate can be reduced.
Preferably, the antenna coil 1 and the characteristic capacitive plate 2 are respectively made of a conductive material;
the conductive material includes a metallic material or a nano conductive material.
The conductive material is made of a metal material or a nano conductive material, so that the conductive performance of the antenna coil can be optimized.
Preferably, the characteristic capacitive plate 2 comprises at least one capacitive element 6;
the at least one capacitive element 6 is connected in at least one of a series connection, a parallel connection, and a hybrid series-parallel connection.
Connecting the at least one capacitive element by at least one of a series connection, a parallel connection, and a hybrid series-parallel connection can improve the capacitive characteristics of the characteristic capacitive plate to meet the requirements of different applications.
Preferably, the characteristic capacitive plate 2 comprises at least one resistive element 7 or does not comprise any resistive element 7; wherein the content of the first and second substances,
the at least one resistive element 7 is connected in series with the at least one capacitive element 6.
The electrical characteristics of the characteristic capacitive plate 2 can be improved by arranging a capacitive element in series with a resistive element.
Preferably, the characteristic capacitive plate 2 comprises at least three capacitive elements 6;
when the number of the second contact members in the electronic tag antenna is more than two, the at least three capacitive elements 6 are arranged between any two of the at least two second contact members 4;
the at least three capacitive elements 6 are connected in at least one of a single connection, a series connection, a parallel connection, and a mixed series-parallel connection.
Connecting the at least two capacitive elements by at least one of series connection, parallel connection, and series-parallel hybrid connection can improve the capacitive characteristics of the characteristic capacitive plate to meet the requirements of different applications.
Preferably, the characteristic capacitive plate 2 comprises at least one resistive element 7 or does not comprise any resistive element 7; wherein the content of the first and second substances,
the at least one resistive element 7 is connected in series with the at least one capacitive element 6.
The electrical characteristics of the characteristic capacitive plates can be improved by arranging the capacitive element in series with the resistive element.
Preferably, the two first contact members 3 are electromagnetic induction type contact members and the at least two second contact members 4 are wired terminal contact members.
Fig. 2-6 are schematic diagrams of circuit structures of a characteristic capacitor plate in an electronic tag antenna with a characteristic capacitor according to the present invention. As can be seen from fig. 2 to 6, in the characteristic capacitive plate 2, the capacitive elements 6 can be connected in series, in parallel or in a combination of series and parallel according to the number of the first contact members 3 and the second contact members 4 in the characteristic capacitive plate 2, or the resistive element 7 can be arranged in series on any one capacitive element 6, so that the sensitivity of the change of the capacitive characteristics of the characteristic capacitive plate 2 can be improved, and the stability and reliability of the operation of the electronic tag antenna can be improved. The specific connection of the capacitive element 6 and/or the resistive element 7 in the characteristic capacitive plate 2 is not further similar here, but is not limited to the connection shown in fig. 2 to 6, and can be varied by the person skilled in the art according to the actual requirements.
As can be seen from the above description of the embodiments, the electronic tag antenna with a characteristic capacitance includes an antenna coil, a characteristic capacitance plate, two first contact members and at least two second contact members; wherein, the two first contact point components are respectively connected with two ends of the antenna coil; the at least two second contact members are respectively connected with the characteristic capacitance pole plates; the two first contact members and the at least two second contact members are relatively independent; therefore, the electronic tag antenna with the characteristic capacitance takes the characteristic capacitance pole plate as a corresponding identity characteristic, and calculates a corresponding characteristic capacitance value by connecting at least two second contact members corresponding to the characteristic capacitance pole plate and stores the characteristic capacitance value in the electronic tag chip, so that an electronic tag jointly composed of the electronic tag antenna and the electronic tag chip has a unique physical characteristic record, and the tamper resistance and the traceability of the electronic tag are improved.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. An electronic tag antenna with characteristic capacitance, characterized in that:
the electronic tag antenna with the characteristic capacitor comprises an antenna coil, a characteristic capacitor polar plate, two first contact point members and at least two second contact point members; wherein the content of the first and second substances,
the two first contact point components are respectively connected with two ends of the antenna coil;
the at least two second contact members are respectively connected with the characteristic capacitance pole plates;
the two first contact members and the at least two second contact members are relatively independent.
2. The electronic tag antenna with the characteristic capacitance according to claim 1, characterized in that:
there is no resistive connection between the two first contact means and the at least two second contact means.
3. The electronic tag antenna with the characteristic capacitance according to claim 1, characterized in that:
the electronic tag antenna further comprises an antenna substrate; wherein the content of the first and second substances,
the antenna coil, the characteristic capacitive plate, the two first contact members and the at least two second contact members are all disposed on the antenna substrate;
the antenna substrate is composed of a non-conductive material.
4. The electronic tag antenna with the characteristic capacitance according to claim 3, characterized in that:
the antenna substrate includes a base portion and an element mounting region portion; wherein the content of the first and second substances,
the component mounting region portion is obtained by a patterned trench formed on the base body portion by etching, and the antenna coil, the characteristic capacitance plate, the two first contact members and the at least two second contact members are respectively disposed on the component mounting region portion;
alternatively, the first and second electrodes may be,
the non-conductive material forming the antenna substrate is PET, PVC, polyimide or epoxy resin.
5. The electronic tag antenna with the characteristic capacitance according to claim 1, characterized in that:
the antenna coil and the characteristic capacitance pole plate are respectively made of conductive materials;
the conductive material includes a metal material or a nano conductive material.
6. The electronic tag antenna with the characteristic capacitance according to claim 1, characterized in that:
the characteristic capacitive plate comprises at least one capacitive element;
the at least one capacitive element is connected in at least one of a series connection, a parallel connection, and a hybrid series-parallel connection.
7. The electronic tag antenna with the characteristic capacitance according to claim 6, characterized in that:
the characteristic capacitive plate comprises at least one resistive element or does not comprise any resistive element; wherein the content of the first and second substances,
the at least one resistive element is connected in series with the at least one capacitive element.
8. The electronic tag antenna with the characteristic capacitance according to claim 1, characterized in that:
the characteristic capacitor plate comprises at least three capacitor elements;
when the number of the second contact members in the electronic tag antenna is more than two, the at least three capacitive elements are arranged between any two of the at least two second contact members;
the at least three capacitive elements are connected in at least one of a single connection, a series connection, a parallel connection, and a mixed series-parallel connection.
9. The electronic tag antenna with the characteristic capacitance according to claim 8, characterized in that:
the characteristic capacitive plate comprises at least one resistive element or does not comprise any resistive element; wherein the content of the first and second substances,
the at least one resistive element is connected in series with the at least one capacitive element.
10. The electronic tag antenna with characteristic capacitance according to any one of claims 1-9, characterized in that:
the two first contact members are electromagnetic induction type contact members, and the at least two second contact members are wired terminal contact members.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010383785.0A CN113627580A (en) | 2020-05-08 | 2020-05-08 | Electronic tag antenna with characteristic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010383785.0A CN113627580A (en) | 2020-05-08 | 2020-05-08 | Electronic tag antenna with characteristic capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113627580A true CN113627580A (en) | 2021-11-09 |
Family
ID=78377408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010383785.0A Pending CN113627580A (en) | 2020-05-08 | 2020-05-08 | Electronic tag antenna with characteristic capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113627580A (en) |
-
2020
- 2020-05-08 CN CN202010383785.0A patent/CN113627580A/en active Pending
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