CN113516219A - Electronic tag, response method and response device - Google Patents
Electronic tag, response method and response device Download PDFInfo
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- CN113516219A CN113516219A CN202110757144.1A CN202110757144A CN113516219A CN 113516219 A CN113516219 A CN 113516219A CN 202110757144 A CN202110757144 A CN 202110757144A CN 113516219 A CN113516219 A CN 113516219A
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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
- G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
- G06K17/0022—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device
Abstract
The invention provides an electronic tag, a response method and a response device, and belongs to the technical field of power wireless communication. The electronic tag includes: a substrate, a chip and a tag antenna; the substrate accommodates the chip and the tag antenna; the tag antenna comprises a dipole antenna array and a matching ring; array elements of the dipole antenna in the dipole antenna array are arranged in mirror symmetry relative to a specified axis parallel to a straight line where the dipole antenna is located; the two arms of the dipole antenna, which are used as symmetrical oscillators, are connected with the matching ring through two feeder lines respectively; a branch conducting segment is arranged in the matching ring; the connection point of the branch conductive segment on the matching ring is positioned in the ring segment between the two feeding points; the branch conductive segments are also connected with the chip. The invention can be used for long-distance communication.
Description
Technical Field
The invention relates to the technical field of electric power wireless communication and radio frequency identification, in particular to an electronic tag, a response method and a response device.
Background
In recent years, with the development of RFID (Radio Frequency IDentification) technology, electronic tags have been widely used. With the improvement of the national power grid on the requirements of high-efficiency and convenient operation, RFID is increasingly applied to the power industry. In some power application scenes, such as high-voltage power, water power, mountains power, unmanned aerial vehicle inspection power scenes and the like. The worker needs to hold the reader to identify the electronic tag, and is affected by the environment, the worker needs to be far away from the installation position of the electronic tag to identify and read, and the identification and reading are difficult to succeed; when the electronic tags sequentially close to the installation positions can be read, time is consumed, the electronic tags are difficult to implement, the working efficiency is low, and certain dangers are caused. For example, a transmission tower is a common power tower, and in the process that the transmission tower is used for actual transmission, the transmission tower is equipped with an electronic tag, and the electronic tag can record information of the transmission tower, and the transmission tower needs to be regularly or temporarily subjected to electric power inspection (including the identification and reading of the electronic tag on the transmission tower), but during inspection, because the voltage of the transmission tower is higher, there is a certain risk of electric shock, and there may be a water source, a mountain range, and the like near the transmission tower. Therefore, in order to improve the work efficiency of the power patrol and ensure the safety of personnel, the electronic tag needs to have a remote communication distance.
At present, under the condition of determining a tag chip, the gain of a common electronic tag antenna is generally within 2dBi, and the reading distance of an electronic tag is limited.
Disclosure of Invention
The invention aims to provide an electronic tag, a response method and a response device, which can avoid the limitation of the reading distance of a tag chip caused by the excessively low gain of a tag antenna of the electronic tag, and further improve the reading efficiency and the effective distance of the electronic tag in power routing inspection.
In order to achieve the above object, an embodiment of the present invention provides an electronic tag, including: a substrate, a chip and a tag antenna;
the substrate accommodates the chip and the tag antenna;
the tag antenna comprises a dipole antenna array and a matching ring;
array elements of the dipole antenna in the dipole antenna array are arranged in mirror symmetry relative to a specified axis parallel to a straight line where the dipole antenna is located;
the two arms of the dipole antenna, which are used as symmetrical oscillators, are connected with the matching ring through two feeder lines respectively;
a branch conducting segment is arranged in the matching ring;
the connection point of the branch conductive segment on the matching ring is positioned in the ring segment between the two feeding points;
the branch conductive segments are also connected with the chip.
Specifically, the two feeding points are corresponding feeding points of the two antenna single arms on the matching ring.
Specifically, the two antenna single arms are respectively arranged in any two array elements and are in mirror symmetry.
Specifically, the effective length of the dipole antenna is 0.65 λ -0.85 λ, where λ is the operating wavelength of the tag antenna.
Specifically, the distance between adjacent array elements in the dipole antenna array in the direction perpendicular to the specified axis is 0.4 λ -0.6 λ.
Specifically, the matching ring is a symmetrical regular ring, and the branch conductive segments are straight conductive wires.
Specifically, the intra-loop region of the matching loop is divided into two regions having equal areas by the branch conductive segment.
Specifically, the matching ring is one or more of a circular matching ring, an elliptical matching ring, a rectangular matching ring and a regular polygonal matching ring.
Specifically, the center of the matching loop is located at an intersection point of a straight line connecting the designated axis and the midpoint of the dipole antenna.
Specifically, in the antenna double arms in each array element, the lengths of the ring segments between the corresponding feeding points on the matching ring are equal.
Specifically, the chip and the tag antenna are located on the same side of the substrate.
Specifically, the substrate is provided with a through hole, and the matching ring and the dipole antenna array are respectively located on two side surfaces of the substrate;
and the two arms of the dipole antenna serving as the symmetrical oscillators penetrate through the through holes through the two feeder lines and are connected with the matching ring.
Specifically, the substrate is provided with a through hole, the dipole antenna array is provided with two array elements, and the two array elements are respectively positioned on two side surfaces of the substrate;
the matching ring and one of the two array elements are positioned on the same side of the substrate, and the other is connected with the matching ring through the through hole by the corresponding two feeder lines.
The embodiment of the invention provides a response method, which is executed by a chip in the electronic tag, and comprises the following steps:
obtaining an inquiry request signal or a reading request signal;
modulating to form a response signal corresponding to the inquiry request signal or the read request signal and transmitting the response signal.
The embodiment of the invention provides a response device, which comprises the electronic tag.
In the electronic tag, the dipole antenna array is symmetrically arranged on the substrate, the matching ring is connected with all dipole antennas, and the feed points of the dipole antennas on the matching ring are matched with the connection point positions of the branch conducting segments on the matching ring, so that the effect of matching impedance with each array element in the whole dipole antenna array during the working period of a chip can be achieved, the radiation coupling wave beams of each array element are enhanced, and the manufacturing cost and the process realization difficulty are improved. The invention provides the preferred antenna equivalent length and dipole array hybrid antenna, and realizes the long-distance communication and high gain of the electronic tag.
The matching ring is divided into areas with the same area by the straight conductive branch conductive segment, so that the effect of matching impedance which is basically completely consistent with each array element in the whole dipole antenna array during the working period of the chip can be achieved, the antenna has the characteristic of a product which can be used in a large scale, the bottleneck of communication distance of the chip with the same radio frequency capacity is broken through, and meanwhile, the manufacturing cost and the process realization difficulty of the electronic tag are almost improved to the utmost extent.
Additional features and advantages of embodiments of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention without limiting the embodiments of the invention. In the drawings:
FIG. 1 is a schematic diagram of an exemplary electronic tag in accordance with an embodiment of the present invention;
FIG. 2 is a detailed schematic diagram of an exemplary electronic tag according to an embodiment of the present invention;
FIG. 3 is an exemplary perspective radiation pattern corresponding to the electronic tag of FIG. 2, in accordance with embodiments of the present invention;
FIG. 4 is a planar radiation pattern of an exemplary antenna corresponding to the electronic tag of FIG. 2, in accordance with embodiments of the present invention;
fig. 5 is a schematic view of (a) a part of a γ -side and (b) a part of a β -side of an electronic tag according to an exemplary double-sided manufacturing process of an embodiment of the present invention;
fig. 6 is a schematic diagram of an exemplary ring manufacturing process electronic tag according to an embodiment of the present invention.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating embodiments of the invention, are given by way of illustration and explanation only, not limitation.
Example 1
An embodiment of the present invention provides an electronic tag, which may include:
a substrate accommodating the chip and the tag antenna; the tag antenna comprises a dipole antenna array and a matching ring; array elements of the dipole antenna in the dipole antenna array are arranged in mirror symmetry relative to a specified axis parallel to a straight line where the dipole antenna is located; the two arms of the dipole antenna, which are used as symmetrical oscillators, are connected with the matching ring through two feeder lines respectively; a branch conducting segment is arranged in the matching ring; the connection point of the branch conductive segment on the matching ring is positioned in the ring segment between the two feeding points; the two feeding points are corresponding feeding points of the two antenna single arms on the matching ring; the two antenna single arms are respectively arranged in any two array elements and are in mirror symmetry; the branch conductive segments are also connected with the chip.
In some implementations, the substrate may be a rectangular plate or an elliptical plate or other plate with various shapes suitable for specific use requirements, and may be made of ceramic, polyvinyl chloride, or fragile paper. The substrate houses an RFID chip (tag chip or chip) and a tag antenna, the chip may include an integrated circuit or processor with instruction processing capabilities and memory. The memory may have stored therein instructions that enable communication with a reader or device having the capability of reading electronic tags. When the integrated circuit or the processor executes the instruction, the functions of configuration of the electronic tag such as inquiry information, identification information, read-write information and the like can be realized.
The tag antenna can be made of metal materials such as aluminum, iron, copper and silver, or conductive materials such as conductive graphite (e.g. graphene). The electronic tag of the embodiment of the invention can be prepared by an etching method, an electroplating method or a printing method; the chip and the tag antenna can be accommodated and implemented according to the cost and the application requirement of the manufacturing process of the electronic tag. For example, the chip and the tag antenna may be formed on one side of the substrate, which may result in lower manufacturing costs, or the substrate may be perforated to form through holes, and all or part of the tag antenna may be disposed on both sides of the substrate and/or the chip and the tag antenna may be disposed on both sides of the substrate, which may then be electrically connected via the through holes.
The dipole antenna array may have at least two elements, each element being a dipole antenna. The dipole antenna is a dipole, is a linear conductor with a midpoint disconnected and respectively coupled with the chip, can be connected to a matching (conductive) ring through two feeder lines, is connected with the chip through the matching ring, and can be a long straight conductive wire which is in mirror symmetry relative to the midpoint of the antenna. The straight line where the long straight conductive wire is located can be used as a reference, the design size of the electronic tag is combined, and the designated axis parallel to the straight line is selected, so that the mirror symmetry arrangement of the array elements can be completed.
The connection point of the branch conducting segment in the matching ring is positioned in a ring segment on the matching ring, and the ring segment is a ring segment between corresponding feeding points of two antenna single arms which are respectively in mirror symmetry in any two array elements on the matching ring. For example, if the dipole antenna array has two array elements, one of the two array elements may be located at the upper portion of the substrate, and the other array element is located at the lower portion of the substrate, and the connection line between the respective midpoints (i.e., the straight line formed by connecting the midpoints) of the two array elements is divided into the left portion of the substrate and the right portion of the substrate, the two antenna arms respectively having mirror symmetry in any two array elements may be the antenna arms of the asymmetric element, and the antenna arms of the mirror-symmetric asymmetric element may include two sets of arms. The first group of single arms are the left antenna single arm in the array element on the upper part of the substrate and the left antenna single arm in the array element on the lower part of the substrate. The second group of single arms are the middle right antenna single arm of the array element on the upper part of the substrate and the middle right antenna single arm of the array element on the lower part of the substrate.
The first group of single arms has two left feeding points on the matching ring, the two left feeding points are positioned at the part of the matching ring belonging to the left part of the substrate (or the matching ring can be the ring segment close to the midpoint connecting line if the matching ring is positioned at the right part of the substrate, or the ring segment far away from the midpoint connecting line if the matching ring is positioned at the left part of the substrate) to determine the first ring segment, the second group of single arms has two right feeding points on the matching ring, the two right feeding points are positioned at the part of the matching ring belonging to the right part of the substrate (or the matching ring can be the ring segment far away from the midpoint connecting line if the matching ring is positioned at the right part of the substrate, or the ring segment close to the midpoint connecting line if the matching ring is positioned at the left part of the substrate) to determine the second ring segment.
The branch conductive segment may be two segments of straight conductive wires, one end of the first segment of straight conductive wire may have a connection point in the first ring segment (for some manufacturing processes of the tag antenna, the connection point may be only a point in a geometric sense, but may not be a physical connection point such as a welding point connected by an independent conductive wire, and the feed point may also be understood as such), and the other end is connected to the chip. One end of the second section of straight conductive wire can be provided with another connection point in the second loop section, and the other end of the second section of straight conductive wire is connected with the chip, so that a working electric loop of the chip is realized. The connection between the branch conductive segment and the chip and the connection between the branch conductive segment and each ring segment can divide the inner area of the matching ring into two parts of inner areas so as to form a wireless radio frequency impedance matching equivalent circuit corresponding to the inner areas, and realize the impedance matching between the chip and the dipole antenna array and the receiving and sending of more radio frequency energy. It is worth noting in particular that the impedance network of the dipole antenna in the chip and the two array elements can be a structure on both sides of the branch conductive segment, the impedance of one array element presents positive deviation relative to the standard impedance, the impedance of the other array element presents negative deviation relative to the standard impedance, when the branch conductive segment divides the matching ring into regions with equal area, the positive deviation and the negative deviation are superposed and basically offset, and the branch conductive segment provides basically consistent and same impedance for the two coupled array elements, thereby breaking through the communication distance bottleneck of the chip with the same antenna process and radio frequency capability and achieving the nearly extremely communication distance and gain of the electronic tag. It should be noted that, according to actual specific product requirements, the branch conductive segment may be selected as a curved conductive segment, and the curved conductive segment may also be divided into equal regions, for example, one section of the branch conductive segment is a sine wave front half period line type, and the other section is a sine wave rear half period line type.
The effective (equivalent) length of the dipole antenna can be selected to be 0.65 λ -0.85 λ, where λ is the operating wavelength of the tag antenna, for example, the length of the antenna double arms can be preferably about 0.75 λ, and in cooperation with the dipole antenna array, high gain and long reading distance of the electronic tag can be achieved. The distance between adjacent array elements in the dipole antenna array in the vertical direction of the specified axis is 0.4 lambda-0.6 lambda, for example, the distance between the left antenna single arm on the upper part of the substrate and the left antenna single arm on the lower part of the substrate is preferably about 0.5 lambda.
The matching ring may be a symmetrical regular ring, and the inner ring area of the matching ring is divided into two areas with equal areas by the branch conductive segment. Wherein the areas are equal may be substantially equal, illustratively but not by way of limitation, such as areas differing by 0.001%, 0.01%, 0.1%, 1%, 2%, etc., depending on the actual manufacturing process. The center of the matching ring can be located at the intersection point of the designated axis and the midpoint connecting line, for example, if the matching ring is any one of a circular matching ring, an elliptical matching ring, a rectangular matching ring and a regular polygonal matching ring, the center of the any one is located at the intersection point, so that the manufacturing cost can be reduced, the process realization difficulty can be reduced, and the impedance matching between the dipole array and the chip can be completed.
In the antenna double arms (symmetrical vibrators) in each array element, the lengths of the ring segments between the corresponding feeding points on the matching ring (when the matching ring is a symmetrical regular ring, the two intercepted ring segments can meet) are equal, the feeder lines can be basically straight conductive wires which are parallel to each other, and the simplification of the manufacturing process of the electronic tag can be further facilitated.
Specifically, in the first exemplary implementation, the substrate has a through hole, the matching ring and the dipole antenna array are respectively located on two side surfaces of the substrate, and two arms of the dipole antenna as a dipole are respectively connected to the matching ring through the through hole via two feed lines. In a second exemplary implementation, the substrate has a through hole, the dipole antenna array has two array elements, the two array elements are respectively located on two side surfaces of the substrate, the matching ring and one of the two array elements are located on the same side surface of the substrate, and the other one of the two array elements passes through the through hole via a corresponding feed line and is connected with the matching ring.
In an exemplary electronic tag implementation of an embodiment of the present invention, as shown in fig. 1 and 2, a rectangular substrate 100 houses a chip 200 and a tag antenna 300, and the tag antenna 300 includes a dipole antenna array having two array elements.
The first array element is a dipole antenna with a first antenna single arm 301 and a second antenna single arm 302 (dipole, antenna double arm). The second element is a dipole antenna having a third antenna leg 303 and a fourth antenna leg 304.
The designated axis may be selected as a first axis 311, and the first array element and the second array element are mirror images with respect to the first axis 311. First antenna singled-arm 301 and second antenna singled-arm 302 are mirror symmetric about second axis 312 (second axis 312 may pass through the midpoints of the two dipole antennas). The third antenna single arm 303 and the fourth antenna single arm 304 are also mirror symmetric with respect to the second axis 312.
The tag antenna 300 further includes a rectangular matching loop 309, the rectangular matching loop 309 being centered substantially at the intersection of the first axis 311 and the second axis 312. The first antenna single arm 301 is connected to a rectangular matching loop 309 (at feed point a) via a first feed line 305. The second antenna single arm 302 is connected to a rectangular matching loop 309 via a second feed line 306. The third antenna single arm 303 is connected to a rectangular matching loop 309 via a third feeder 307. The fourth antenna single arm 304 is connected to a rectangular matching loop 309 (at feed point C) via a fourth feed line 308, wherein any one antenna single arm is substantially perpendicular to the respective feed line. The first and second power feeding lines 305 and 306 may be substantially parallel, and the third and fourth power feeding lines 307 and 308 may be substantially parallel.
A rectangular matching ring 309 is provided with a branch conductive segment, wherein one end of a straight conductive line 310 is provided with a connection point B in a ring segment AC (left part of the substrate 100); in some cases, the length of the conductive path between connection point B and feed point a is substantially equal to the length of the conductive path between connection point B and feed point C, wherein the length of the conductive path between feed point A, C and the end of the respective antenna single arm is also substantially equal. The other end of the straight conductive line 310 is connected to the chip 200, and the connection manner of the other straight conductive line (the straight conductive line between the chip and the feeding point D) is also the same as that of the straight conductive line 310, and is not described again.
Finally, the connected loops (the straight line positions of the feeding points B and D) can be used for forming a working electric loop of the electronic tag and a split matching loop to realize impedance matching. The areas of the divided first in-ring region 313 and the second in-ring region 314 within the matching ring 309 are substantially equal. The effective (equivalent) length of both dipole antennas is substantially 0.75 λ, which may include the one-arm length and the break gap. The first antenna single arm 301 is substantially 0.5 λ away from the fourth antenna single arm 304 and the second antenna single arm 302 is substantially 0.5 λ away from the third antenna single arm 303.
In fig. 3 and 4, the gray scale variation in the stereo directional diagram in fig. 3 represents the total field gain (gain) variation, and the origin of the coordinate system (the origin is O, and the three axes are X-axis, Y-axis and Z-axis, respectively) is arranged approximately at the beam radiation center position. M1, m2 and m3 in fig. 4 are angle identifiers (names), each corresponding to three polarization angle parameters Phi, Theta and Mag. The values of the polarization angle parameters of the electronic tag in fig. 2 are the values corresponding to Phi, Theta and Mag in fig. 4 (which can be regarded as the legend of fig. 4). In fig. 4 the dashed line represents the planar radiation pattern for Phi of 90 ° and the thick solid line represents the planar radiation pattern for Phi of 0 °; it is understood that the use of substantially or approximately equal terms is intended to provide an acceptable deviation or tolerance, such as, but not limited to, a process variation resulting in a deviation of 5%, 10%, 20% from the disclosed value, as may be understood in embodiments of the present invention.
In the implementation of an exemplary electronic tag according to an embodiment of the present invention, as shown in fig. 5, the dotted lines in the (a) part of the drawing and the (b) part of the drawing indicate the part of the tag element that is hidden by the substrate 400. The electronic tag may adopt a double-sided manufacturing process, and the substrate 400 houses the chip 500 and the tag antenna. The tag antenna includes a dipole antenna having a fifth antenna arm 601 and a sixth antenna arm 602, and a dipole antenna having a seventh antenna arm 603 and an eighth antenna arm 604, and a rectangular matching loop 607. The aforementioned dipole antennas constitute a dipole antenna array, which may be fabricated on the first side γ of the substrate 400 and connected with the rectangular matching ring 607 via corresponding through holes. For example, the fifth antenna single arm 601 is connected via a fifth feed line 605 through a via 606 to a rectangular matching loop 607 on the second plane β of the substrate 400, the rectangular matching loop 607 also being connected via a branch conductor segment to the chip 500 also on the second plane β.
In an exemplary electronic tag implementation of an embodiment of the present invention, as shown in fig. 6, a substrate 700 houses a chip 800 and a tag antenna, which includes a dipole antenna having a ninth antenna arm 901 and a tenth antenna arm 902, and a dipole antenna having an eleventh antenna arm 903 and a twelfth antenna arm 904, and a circular matching loop 906. The dipole antenna forms a dipole antenna array, the dipole antenna array is connected with a circular matching ring 906 through a corresponding feeder line, for example, a ninth antenna single arm 901 is connected with a sixth feeder line 905, a conductive branch section which can be a straight conductive line is arranged in the circular matching ring 906, the circular matching ring 906 is connected with a chip 800 through the conductive branch section, and the circular matching ring 906 is divided into a first semicircular inner ring area 907 and a second semicircular inner ring area 908 which are equal in area by a communication loop.
The embodiment of the invention realizes the electronic tag with the characteristic of long distance, provides the mixed antenna of the 0.75 lambda antenna equivalent length and the dipole array, and realizes the long-distance communication and high gain of the electronic tag. The antenna structure of the conventional RFID planar tag antenna generally adopts a half-wave radiation mode, wherein the equivalent length of the antenna of a dipole tag single arm is lambda/2, the equivalent arm length of a slot antenna is lambda/2, the antenna gain of the tag under the condition is generally less than or equal to 2dBi, the antenna gain is low, and the communication distance of remote power inspection is difficult to achieve.
Example 2
The embodiment of the present invention is the same inventive concept as embodiment 1, and provides a response method, which is implemented by the chip in the electronic tag described in embodiment 1, and is applied to an electronic tag that can communicate with a reader, and the electronic tag can be mounted (e.g., pasted) on a tag user in a power usage scenario such as a power transmission pole or a tag user in a warehousing usage scenario such as goods. The answering method can comprise the following steps:
obtaining an inquiry request signal or a reading request signal, wherein the inquiry request signal can be used for a reader to obtain information such as an identity or a unique identification code of an electronic tag, and the reading request signal can be used for specified information recorded on the electronic tag read by the reader;
and modulating to form a response signal corresponding to the query request signal or the read request signal and transmitting the response signal, wherein the chip in the electronic tag responds to the query request signal or the read request signal, and encodes and modulates the information according to a configured instruction processing mode corresponding to the query request operation or the read request operation, so that the response signal can be formed and transmitted, and the reader can transmit a write request signal or finish communication and the like after receiving the response signal.
Wherein, the chip can include: at least one processor or integrated circuit (the integrated circuit having instruction processing capabilities); a memory coupled to the at least one processor or integrated circuit; wherein the memory stores instructions executable by the at least one processor or integrated circuit, and the at least one processor or integrated circuit implements the aforementioned method by executing the instructions stored by the memory.
Example 3
The embodiment of the invention belongs to the same inventive concept as embodiments 1 and 2, and provides a response device which comprises the electronic tag in embodiment 1.
In some implementations, the transponder device may be a wide variety of devices that provide tag information. For example, the transponder device may comprise one or more of the aforementioned electronic tags, and may further comprise additional components such as means for mounting, means for protecting the electronic tag, and/or means for arranging a plurality of electronic tags, in particular such as a holder, a protective cover, a release film, a sticker, a wrapping paper and/or a housing.
Although the embodiments of the present invention have been described in detail with reference to the accompanying drawings, the embodiments of the present invention are not limited to the details of the above embodiments, and various simple modifications can be made to the technical solutions of the embodiments of the present invention within the technical idea of the embodiments of the present invention, and the simple modifications all belong to the protection scope of the embodiments of the present invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the embodiments of the present invention do not describe every possible combination.
Those skilled in the art will understand that all or part of the steps in the method according to the above embodiments may be implemented by a program, which is stored in a storage medium and includes several instructions to enable a single chip, a chip, or a processor (processor) to execute all or part of the steps in the method according to the embodiments of the present application. While the aforementioned memory may be a storage medium, which may be non-transitory, the storage medium comprising: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In addition, any combination of various different implementation manners of the embodiments of the present invention is also possible, and the embodiments of the present invention should be considered as disclosed in the embodiments of the present invention as long as the combination does not depart from the spirit of the embodiments of the present invention.
Claims (15)
1. An electronic tag, comprising: a substrate, a chip and a tag antenna;
the substrate accommodates the chip and the tag antenna;
the tag antenna comprises a dipole antenna array and a matching ring;
array elements of the dipole antenna in the dipole antenna array are arranged in mirror symmetry relative to a specified axis parallel to a straight line where the dipole antenna is located;
the two arms of the dipole antenna, which are used as symmetrical oscillators, are connected with the matching ring through two feeder lines respectively;
a branch conducting segment is arranged in the matching ring;
the connection point of the branch conductive segment on the matching ring is positioned in the ring segment between the two feeding points;
the branch conductive segments are also connected with the chip.
2. The electronic tag according to claim 1,
the two feeding points are corresponding feeding points of the two antenna single arms on the matching ring.
3. The electronic tag according to claim 2,
the two antenna single arms are respectively arranged in any two array elements and are in mirror symmetry.
4. The electronic tag according to claim 1,
the effective length of the dipole antenna is 0.65 lambda-0.85 lambda, wherein lambda is the working wavelength of the tag antenna.
5. The electronic tag according to claim 1 or 4,
and the distance between adjacent array elements in the dipole antenna array in the vertical direction of the specified axis is 0.4 lambda-0.6 lambda.
6. The electronic tag according to claim 1,
the matching ring is a symmetrical regular ring, and the branch conducting segments are straight conducting wires.
7. The electronic tag according to claim 1 or 6,
the intra-loop region of the matching loop is divided into two regions having equal areas by the branch conductive segment.
8. The electronic tag according to claim 7,
the matching ring is one or more of a circular matching ring, an elliptical matching ring, a rectangular matching ring and a regular polygon matching ring.
9. The electronic tag according to claim 7,
the center of the matching ring is located at the intersection point of a straight line formed by connecting the designated axis and the middle point of the dipole antenna.
10. The electronic tag according to claim 7,
in the antenna double arms in each array element, the lengths of the ring sections between the corresponding feeding points on the matching rings are equal.
11. The electronic tag according to claim 1,
the chip and the tag antenna are located on the same side of the substrate.
12. The electronic tag according to claim 1,
the substrate is provided with a through hole, and the matching ring and the dipole antenna array are respectively positioned on two side surfaces of the substrate;
and the two arms of the dipole antenna serving as the symmetrical oscillators pass through the through holes through the two feeder lines and are connected with the matching ring.
13. The electronic tag according to claim 1,
the base plate is provided with a through hole, the dipole antenna array is provided with two array elements, and the two array elements are respectively positioned on two side surfaces of the base plate;
the matching ring and one of the two array elements are positioned on the same side of the substrate, and the other is connected with the matching ring through the through hole by the corresponding two feeder lines.
14. A response method, performed by a chip in an electronic tag according to any one of claims 1 to 13, characterized in that the response method comprises:
obtaining an inquiry request signal or a reading request signal;
modulating to form a response signal corresponding to the inquiry request signal or the read request signal and transmitting the response signal.
15. A transponder device, characterized in that it comprises an electronic label according to any one of claims 1 to 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110757144.1A CN113516219A (en) | 2021-07-05 | 2021-07-05 | Electronic tag, response method and response device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110757144.1A CN113516219A (en) | 2021-07-05 | 2021-07-05 | Electronic tag, response method and response device |
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| Publication Number | Publication Date |
|---|---|
| CN113516219A true CN113516219A (en) | 2021-10-19 |
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| CN202110757144.1A Pending CN113516219A (en) | 2021-07-05 | 2021-07-05 | Electronic tag, response method and response device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114756510A (en) * | 2022-06-14 | 2022-07-15 | 深圳萨尔浒网络科技有限公司 | Computer file data matching method and device, computer equipment and storage medium |
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2021
- 2021-07-05 CN CN202110757144.1A patent/CN113516219A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114756510A (en) * | 2022-06-14 | 2022-07-15 | 深圳萨尔浒网络科技有限公司 | Computer file data matching method and device, computer equipment and storage medium |
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