CN113269294A - Design of split type electronic tag - Google Patents
Design of split type electronic tag Download PDFInfo
- Publication number
- CN113269294A CN113269294A CN202110661379.0A CN202110661379A CN113269294A CN 113269294 A CN113269294 A CN 113269294A CN 202110661379 A CN202110661379 A CN 202110661379A CN 113269294 A CN113269294 A CN 113269294A
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- Prior art keywords
- chip
- matching circuit
- antenna
- design
- electronic tag
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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
- G06K19/0772—Physical layout of the record carrier
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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
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- 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 relates to a design of a split type electronic tag, which at least comprises an antenna structure, a 50-ohm coaxial line and a chip matching circuit, wherein the antenna structure is connected with the chip matching circuit through the coaxial line, and the chip matching circuit consists of a chip and a matching circuit; because the antenna of the split type label can be directly replaced, the performance and the size of the label can be freely adjusted, so that the split type label can adapt to more application scenes compared with the traditional integrated label; the sensor label adopting the split design is not limited by the space of the part to be measured any more; the sensor chip matching circuit is small in size and can be placed into various narrow gaps for measurement, the antenna is placed in a place easy to read, the position is more freely selected, and the sensor chip matching circuit is better in usability.
Description
Technical Field
The invention relates to an electronic tag in the RFID industry, in particular to a design of a split type electronic tag.
Background
The electronic tag is a key component of the RFID system, and a complete RFID system comprises a read-write device, an antenna, a feeder line, the electronic tag and software. The electronic tag is divided into a low frequency, a high frequency, an ultrahigh frequency and microwaves according to frequency bands, and is divided into a passive electronic tag, a semi-active electronic tag and an active electronic tag according to a power supply mode, wherein the electronic tag comprises a chip, an antenna and an external package.
The current ultrahigh frequency electronic tag uses an integrated design, and a chip is directly connected with an antenna and is attached to the antenna. An electronic tag as shown in fig. 1 comprises an antenna and a chip 1, wherein the antenna comprises a loop antenna 2 and a dipole antenna 3, and the dipole antenna is connected to the loop antenna; the chip is located on the annular antenna, and the tail end of the dipole antenna is provided with a tail end loading 4 for expanding the bandwidth of the antenna. The dipole antenna is divided into two sections relative to the loop antenna, and the two sections of dipole antennas are respectively connected to the upper side line of the loop antenna. The chip is welded on the antenna.
The chip can not be dismantled the change after linking to each other with the antenna, and label performance and size are fixed basically, can't be according to actual project demand freedom adjustment size and performance, and because the chip impedance is complex impedance, lead to unable direct use common 50 ohm antenna, need design the antenna of different dimensions for every chip alone, and the cost is higher.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a design of a split type electronic tag.
In order to solve the technical problems, the invention provides the following technical scheme:
the design of a split type electronic tag at least comprises an antenna structure, a 50-ohm coaxial line and a chip matching circuit, wherein the antenna structure is connected with the chip matching circuit through the coaxial line, and the chip matching circuit is composed of a chip and a matching circuit.
A shell for protecting the chip matching circuit is arranged outside the chip matching circuit, and the shell comprises a shell body and an opening end for the chip matching circuit to enter and exit; between the chip matching circuit and the housing, the chip matching circuit is semi-enclosed in the housing.
In the design, the chip matches the impedance to approximately 50 ohms through a matching circuit, and the matching circuit is connected with the antenna structure by using a 50-ohm coaxial line to realize impedance matching.
The antenna structure comprises at least an antenna.
The antenna structure further comprises an antenna connection for connecting an antenna.
The chip matching circuit is connected with the antenna joint through a 50 ohm coaxial line and then connected with various antennas to be selected through the antenna joint.
The chip matching circuit is laid out on a substrate, and a coaxial line welding area used for being connected with a 50 ohm coaxial line, a matching area used for matching the chip and a chip welding position used for welding the chip are displayed on the substrate.
The matching area is provided with a matching circuit, and the coaxial line welding area and the chip welding position are electrically connected with the matching circuit.
The chip is arranged on a matching circuit, and the impedance of the chip is matched to be within a specified range in a mode of connecting a capacitor and an inductor in series and parallel on the circuit.
The matching circuit comprises a pi-type matching circuit, a T-type matching circuit and various circuits matched with the chip except the pi-type matching circuit and the T-type matching circuit.
The shell plays a corresponding protection role, and the chip matching circuit still plays the specific performance under the condition of being separated from the shell.
Connection mode of antenna structure and 50 ohm coaxial line:
1. the antenna structure is provided with an antenna joint, and only a 50-ohm coaxial line is connected with the antenna joint;
2. the antenna structure does not have an antenna joint, and a 50 ohm coaxial line is required to be connected to a specific connection part tightly connected with the antenna structure.
The sensor of sensor label is usually inside the chip, therefore split type design can be used to sensor label field, compares traditional integral type design, and split type structure can make the label be applicable to some extreme environment, if: split type temperature measurement label, chip matching circuit put into metal casing just can constitute temperature probe, and temperature probe can stretch into measuring temperature in environments such as gap or liquid, and the integral type label can't be put into, or can't read after putting into.
The sensor label of split type structure is adopted, and the sensor is not influenced to be used in some narrow and small gaps when the antenna with larger size is replaced, and the label can be provided with farther reading distance.
When the chip is well matched in use, the frequency band can cover 840 MHz-960 MHz, the frequency band is wide, and all frequency bands of the ultrahigh frequency of the RFID are completely covered.
After the chip is matched, the impedance is about 50 ohms, so that the chip can be directly connected with a 50-ohm coaxial line with an antenna connector to form an independent module, and the module can be connected with various common 50-ohm antennas.
When in connection application, the chip is welded at the chip welding position, one end of the 50 ohm coaxial line is welded at the coaxial line welding area, and the carrier-substrate as the chip matching circuit is accommodated in the shell; the other end of the 50 ohm coaxial line is connected to the antenna structure, typically to an antenna connection of the antenna structure.
Has the advantages that:
1. because the antenna of split type label can directly be changed, consequently the performance and the size of label can freely be adjusted for split type label compares traditional integral type label and can adapt to more application scenes.
2. The sensor label adopting the split design is not limited by the space of the part to be measured any more. The sensor chip matching circuit is small in size and can be placed into various narrow gaps for measurement, the antenna is placed in a place easy to read, the position is more freely selected, and the sensor chip matching circuit is better in usability.
Drawings
FIG. 1 is a schematic diagram of a background structure of the present invention;
FIG. 2 is a schematic structural diagram of the present invention;
FIG. 3 is a second schematic structural diagram of the present invention;
FIG. 4 is a third schematic structural diagram of the present invention;
FIG. 5 is a fourth schematic view of the present invention.
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.
Referring to fig. 2-5, the present invention provides a technical solution:
the design of a split type electronic tag at least comprises an antenna structure 5, a 50-ohm coaxial line 6 and a chip matching circuit 7, wherein the antenna structure is connected with the chip matching circuit through the coaxial line, and the chip matching circuit is composed of a chip and a matching circuit.
A shell 8 for protecting the chip matching circuit is arranged outside the chip matching circuit, and the shell comprises a shell body and an opening end 9 for the chip matching circuit to enter and exit; between the chip matching circuit and the housing, the chip matching circuit is semi-enclosed in the housing.
In the design, the chip matches the impedance to approximately 50 ohms through a matching circuit, and the matching circuit is connected with the antenna structure by using a 50-ohm coaxial line to realize impedance matching.
The antenna structure comprises at least an antenna.
The antenna structure further comprises an antenna connection 10 for connecting an antenna.
The chip matching circuit is connected with the antenna joint through a 50 ohm coaxial line and then connected with various antennas to be selected through the antenna joint.
The chip matching circuit is laid out on a substrate 11, on which there are present a coaxial wire bonding area 12 for connection with a 50 ohm coaxial wire, a matching area 13 for matching the chip, and a chip bonding site 14 for bonding the chip.
The matching area is provided with a matching circuit, and the coaxial line welding area and the chip welding position are electrically connected with the matching circuit.
The chip is arranged on a matching circuit, and the impedance of the chip is matched to be within a specified range in a mode of connecting a capacitor and an inductor in series and parallel on the circuit.
The sensor of sensor label is usually inside the chip, therefore split type design can be used to sensor label field, compares traditional integral type design, and split type structure can make the label be applicable to some extreme environment, if: split type temperature measurement label, chip matching circuit put into metal casing just can constitute temperature probe, and temperature probe can stretch into measuring temperature in environments such as gap or liquid, and the integral type label can't be put into, or can't read after putting into.
The sensor label of split type structure is adopted, and the sensor is not influenced to be used in some narrow and small gaps when the antenna with larger size is replaced, and the label can be provided with farther reading distance.
When the chip is well matched in use, the frequency band can cover 840 MHz-960 MHz, the frequency band is wide, and all frequency bands of the ultrahigh frequency of the RFID are completely covered.
After the chip is matched, the impedance is about 50 ohms, so that the chip can be directly connected with a 50-ohm coaxial line with an antenna connector to form an independent module, and the module can be connected with various common 50-ohm antennas.
When in connection application, the chip is welded at the chip welding position, one end of the 50 ohm coaxial line is welded at the coaxial line welding area, and the carrier-substrate as the chip matching circuit is accommodated in the shell; the other end of the 50 ohm coaxial line is connected to the antenna structure, typically to an antenna connection of the antenna structure.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The design of a split type electronic tag is characterized in that: the design at least comprises an antenna structure, a 50-ohm coaxial line and a chip matching circuit, wherein the antenna structure is connected with the chip matching circuit through the coaxial line, and the chip matching circuit is composed of a chip and the matching circuit.
2. The design of the split-type electronic tag according to claim 1, wherein: a shell for protecting the chip matching circuit is arranged outside the chip matching circuit, and the shell comprises a shell body and an opening end for the chip matching circuit to enter and exit; between the chip matching circuit and the housing, the chip matching circuit is semi-enclosed in the housing.
3. The design of the split-type electronic tag according to claim 1, wherein: in the design, the chip matches the impedance to approximately 50 ohms through a matching circuit, and the matching circuit is connected with the antenna structure by using a 50-ohm coaxial line to realize impedance matching.
4. The design of the split-type electronic tag according to claim 1, wherein: the antenna structure comprises at least an antenna.
5. The design of the split-type electronic tag according to claim 4, wherein: the antenna structure further comprises an antenna connection for connecting an antenna.
6. The design of the split-type electronic tag according to claim 5, wherein: the chip matching circuit is connected with the antenna joint through a 50 ohm coaxial line and then connected with various antennas to be selected through the antenna joint.
7. The design of the split-type electronic tag according to claim 1, wherein: the chip matching circuit is laid out on a substrate, and a coaxial line welding area used for being connected with a 50 ohm coaxial line, a matching area used for matching the chip and a chip welding position used for welding the chip are displayed on the substrate.
8. The design of the split-type electronic tag according to claim 7, wherein: the matching area is provided with a matching circuit, and the coaxial line welding area and the chip welding position are electrically connected with the matching circuit.
9. The design of the split-type electronic tag according to claim 8, wherein: the chip is arranged on a matching circuit, and the impedance of the chip is matched to be within a specified range in a mode of connecting a capacitor and an inductor in series and parallel on the circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110661379.0A CN113269294A (en) | 2021-06-15 | 2021-06-15 | Design of split type electronic tag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110661379.0A CN113269294A (en) | 2021-06-15 | 2021-06-15 | Design of split type electronic tag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113269294A true CN113269294A (en) | 2021-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110661379.0A Pending CN113269294A (en) | 2021-06-15 | 2021-06-15 | Design of split type electronic tag |
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| Country | Link |
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| CN (1) | CN113269294A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102820519A (en) * | 2012-08-03 | 2012-12-12 | 上海真灼电子技术有限公司 | Antenna system of RFID reader |
| CN102983633A (en) * | 2012-12-25 | 2013-03-20 | 北京四方继保自动化股份有限公司 | State monitoring equipment and monitoring method for relay protection device based on RFID |
| CN108963427A (en) * | 2018-08-31 | 2018-12-07 | 福州福大信捷天线技术有限公司 | A kind of changeable combined antenna and its control method for RFID radio frequency identification |
| CN209216142U (en) * | 2019-01-18 | 2019-08-06 | 莆田杰峰电子科技有限公司 | A kind of ultrahigh frequency RFID is adapted to the encapsulating structure of 50 Europe superscript pseudotypes |
| WO2020220043A1 (en) * | 2019-04-26 | 2020-10-29 | Somark Group Ltd. | Improved implantable passive rfid tag |
| CN212030774U (en) * | 2020-05-19 | 2020-11-27 | 浙江悦和科技有限公司 | Passive temperature data collector and passive RFID temperature measurement label |
-
2021
- 2021-06-15 CN CN202110661379.0A patent/CN113269294A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102820519A (en) * | 2012-08-03 | 2012-12-12 | 上海真灼电子技术有限公司 | Antenna system of RFID reader |
| CN102983633A (en) * | 2012-12-25 | 2013-03-20 | 北京四方继保自动化股份有限公司 | State monitoring equipment and monitoring method for relay protection device based on RFID |
| CN108963427A (en) * | 2018-08-31 | 2018-12-07 | 福州福大信捷天线技术有限公司 | A kind of changeable combined antenna and its control method for RFID radio frequency identification |
| CN209216142U (en) * | 2019-01-18 | 2019-08-06 | 莆田杰峰电子科技有限公司 | A kind of ultrahigh frequency RFID is adapted to the encapsulating structure of 50 Europe superscript pseudotypes |
| WO2020220043A1 (en) * | 2019-04-26 | 2020-10-29 | Somark Group Ltd. | Improved implantable passive rfid tag |
| CN212030774U (en) * | 2020-05-19 | 2020-11-27 | 浙江悦和科技有限公司 | Passive temperature data collector and passive RFID temperature measurement label |
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