CN110263901B - Ultra-small RFID electronic tag antenna and electronic tag - Google Patents
Ultra-small RFID electronic tag antenna and electronic tag Download PDFInfo
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- CN110263901B CN110263901B CN201910553577.8A CN201910553577A CN110263901B CN 110263901 B CN110263901 B CN 110263901B CN 201910553577 A CN201910553577 A CN 201910553577A CN 110263901 B CN110263901 B CN 110263901B
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 476
- 229910052802 copper Inorganic materials 0.000 claims abstract description 476
- 239000010949 copper Substances 0.000 claims abstract description 476
- 239000000758 substrate Substances 0.000 claims description 49
- 239000003292 glue Substances 0.000 claims description 2
- 239000010410 layer Substances 0.000 description 82
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 235000021393 food security Nutrition 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000009812 interlayer coupling reaction Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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
- G06K19/0772—Physical layout of the record carrier
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
- G06K19/07745—Mounting details of integrated circuit chips
-
- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/2208—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems
- H01Q1/2225—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems used in active tags, i.e. provided with its own power source or in passive tags, i.e. deriving power from RF signal
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
Landscapes
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Details Of Aerials (AREA)
Abstract
The invention discloses a microminiature RFID electronic tag antenna and an electronic tag, wherein the electronic tag antenna comprises a four-layer circuit structure, a first-layer circuit, a second-layer circuit, a third-layer circuit and a fourth-layer circuit are sequentially arranged in a stacked manner from top to bottom, the first-layer circuit comprises 3 copper sheets, the first copper sheet and the second copper sheet are both in a concave shape, the third copper sheet is rectangular, the second-layer circuit comprises two antenna copper strips in square wave shapes, the two antenna copper strips are symmetrically arranged, the third-layer circuit comprises three antenna copper strips which are respectively a third wire copper strip, a fourth antenna copper strip and a fifth antenna copper strip, the fourth-layer circuit is rectangular, the left lower corner of the fourth-layer circuit is connected with an eleventh connecting end, the right upper corner of the fourth-layer circuit is connected with a twelfth connecting end, and in the embodiment, the circuits are connected through holes.
Description
Technical Field
The invention discloses an electronic tag, in particular to a microminiature RFID electronic tag antenna and an electronic tag, and belongs to the technical field of wireless radio frequency communication.
Background
Radio frequency identification, RFID (Radio Frequency Identification) technology, also known as radio frequency identification, is a communication technology that can identify a specific object by radio signals and read and write related data without the need for mechanical or optical contact between the identification system and the specific object. RFID readers are also divided into mobile and fixed types, and the application of RFID technology is wide at present, for example: library, access control system, food security traceability, etc.
The most basic radio frequency identification system consists of three parts:
electronic Tag (Tag): the high-capacity electronic tag is also called a radio frequency tag, a transponder and a data carrier, and consists of a coupling element and a chip, wherein each tag is provided with a unique electronic code, a storage space which can be written by a user is arranged in the high-capacity electronic tag, and the high-capacity electronic tag is attached to an object to identify a target object;
reader (Reader): devices, also known as readers, scanners, readheads, communicators, readers (depending on whether the electronic tag can rewrite data wirelessly) that read (and sometimes write) tag information, may be designed to be either handheld or stationary;
antenna (Antenna): radio frequency signals are communicated between the tag and the reader.
The electronic tag and the reader are coupled through a coupling element in a space (non-contact) manner; and in the coupling channel, energy transmission and data exchange are realized according to the time sequence relation. The reader is usually handheld or fixed, the size is not so-called, the electronic tag is required to be carried about or fixedly arranged on a required article, the size of the electronic tag directly feels the use environment and the application occasion, if the size is overlarge, the application scene of the electronic tag can be greatly reduced, and therefore, how to design the electronic tag is smaller becomes a problem to be solved in the industry. At present, the electronic tag with the ultra-small size can obtain good reading performance in a metal environment, the minimum size of the RFID electronic tag in China is basically kept on 5MM, and how to make the RFID electronic tag smaller is a big problem facing the industry.
Disclosure of Invention
Aiming at the defect of larger size of the electronic tag in the prior art, the invention provides a novel ultra-small RFID electronic tag antenna and an electronic tag, which adopt special structural design and can enable the performance of the electronic tag to be more stable through interlayer coupling.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a microminiature RFID electronic tags antenna, electronic tags antenna includes four layers circuit structure, top-down stacks up in proper order and sets up to first layer circuit, the second floor circuit, third layer circuit and fourth layer circuit, first layer circuit includes 3 copper sheets, first copper sheet and second copper sheet all are "concave" font, the third copper sheet is rectangle, the second layer circuit includes two antenna copper bars that are square wave shape, be first antenna copper bar and second antenna copper bar respectively, two antenna copper bar symmetry set up, the third layer circuit includes three antenna copper bars, be the third antenna copper bar respectively, fourth antenna copper bar and fifth antenna copper bar, the fourth layer circuit is rectangle, fourth layer circuit lower left corner is connected with eleventh link, fourth layer circuit upper right corner is connected with twelfth link, connect through the conducting post between each layer circuit, wherein, first and third antenna copper bar one end are connected, the third antenna copper bar other end is connected with first antenna copper bar one end, the first antenna copper bar other end is connected with fourth antenna copper bar one end, the fourth antenna copper bar other end is connected with the third copper sheet, the fourth antenna copper bar other end is connected with the third antenna copper bar, the other end is connected with the fifth antenna copper bar, the other end is connected with the third antenna copper bar, the other end is connected with the twelve antenna copper bar.
An electronic tag comprises the microminiature RFID electronic tag antenna and a radio frequency chip, wherein the radio frequency chip is arranged on the electronic tag antenna.
The technical scheme adopted by the invention for solving the technical problems further comprises the following steps:
the electronic tag antenna is characterized in that the electronic tag antenna is composed of a first layer of substrate and a second layer of substrate, the first layer of substrate and the second layer of substrate are double-sided boards, a first layer of circuit and a second layer of circuit are arranged on the first layer of substrate, a third layer of circuit and a fourth layer of circuit are arranged on the second layer of substrate, and the first layer of substrate and the second layer of substrate are adhered together through insulating glue.
The first layer of substrate and the second layer of substrate respectively adopt a double-sided copper-clad plate with the thickness of 3mm x 3mm, and the thickness of the substrate is 0.2mm.
The first copper sheet is close to one corner of the first layer substrate, two outer side edges of the first copper sheet are 0.15+/-0.01 mm away from the edge of the first layer substrate, the outer side portions of the first copper sheet are square, the length and the width of the first copper sheet are 0.50+/-0.01 mm respectively, the inner side portions of the first copper sheet are rectangular, the length of the long side is 0.60+/-0.01 mm, the length of the wide side is 0.50+/-0.01 mm, a connecting portion is arranged between the outer side portions and the inner side portions of the first copper sheet, the length and the width of the connecting portion are 0.25+/-0.01 mm square, the outer side edges of the outer side portions, the connecting portion and the inner side portions are located on the same straight line, the first copper sheet and the second copper sheet are identical in shape and are symmetrically arranged, and the distance between the first copper sheet and the second copper sheet is 0.20+/-0.01 mm.
The first copper sheet and the second copper sheet are positioned on one side of the first layer of substrate, the third copper sheet is positioned on the other side of the first layer of substrate, the third copper sheet is rectangular, the length and the width of the third copper sheet are respectively 2.70+/-0.01 mm and 0.50+/-0.01 mm, and the distance between the three edges of the third copper sheet and the edge of the first layer of substrate is respectively 0.15+/-0.01 mm.
The first antenna copper strip in the second layer circuit include 6 rectangular shape antenna copper strips, both ends are provided with a link respectively about the first antenna copper strip, every antenna copper strip length is 1.23 + -0.01 mm, antenna copper strip width is 0.13 + -0.01 mm,6 antenna copper strip parallel arrangement, the distance between the adjacent antenna copper strip is 0.13 + -0.01 mm,6 antenna copper strip head and the tail pass through the copper sheet in order to be connected and form first antenna copper strip, the antenna copper strip inboard in first antenna copper strip top is connected with the first link through the copper sheet, the antenna copper strip inboard in first antenna copper strip bottommost is connected with the second link through the copper sheet, the second antenna copper strip in the second layer circuit sets up with first antenna copper strip symmetry, first antenna copper strip and second antenna copper strip intermediate distance are 0.23 + -0.01 mm.
The first connecting end and the second connecting end are square, and the side length is 0.50+/-0.01 mm.
The third antenna copper bar is L-shaped and is divided into two sections of antenna copper bars which are mutually perpendicular, wherein the length of one section of copper bar is 1.57+/-0.01 mm, the length of the other section of copper bar is 1.04+/-0.01 mm, the widths of the two sections of copper bars are 0.13+/-0.01 mm respectively, the upper end of the third antenna copper bar is connected with the outer side edge of the fifth connecting end, the lower end head of the third antenna copper bar is connected with the middle position of the sixth connecting end through a copper bar, the fourth antenna copper bar comprises eight sections of antenna copper bars which are mutually connected, an upper connecting end and a lower connecting end, the first antenna copper bar in the fourth antenna copper bar is horizontally arranged, the right side end of the first antenna copper bar is connected with the middle position of the seventh end head through a connecting copper bar, the length of the first antenna copper bar is 0.78+/-0.01 mm, the width of the first antenna copper bar is 0.13+/-0.01 mm, the left end of the first antenna copper sheet vertically extends downwards to form a second antenna copper sheet, the length of the second antenna copper sheet is 1.18+/-0.01 mm, the width of the second antenna copper sheet is 0.13+/-0.01 mm, the third antenna copper sheet, the fourth antenna copper sheet and the fifth antenna copper sheet are respectively arranged in parallel with the second antenna copper sheet, the lengths of the third antenna copper sheet, the fourth antenna copper sheet and the fifth antenna copper sheet are respectively 0.92+/-0.01 mm, the widths of the third antenna copper sheet, the fourth antenna copper sheet and the fifth antenna copper sheet are respectively 0.13+/-0.01 mm, the bottom of the second antenna copper sheet is connected with the third antenna copper sheet through a connecting copper sheet, the top of the third antenna copper sheet is connected with the fourth antenna copper sheet through a connecting copper sheet, and the bottom of the fourth antenna copper sheet is connected with the fifth antenna copper sheet through a connecting copper sheet; the sixth antenna copper sheet, the seventh antenna copper sheet and the eighth antenna copper sheet are respectively arranged in parallel with the fifth antenna copper sheet, the lengths of the sixth antenna copper sheet, the seventh antenna copper sheet and the eighth antenna copper sheet are respectively 1.18+/-0.01 mm, the widths of the sixth antenna copper sheet, the seventh antenna copper sheet and the eighth antenna copper sheet are respectively 0.13+/-0.01 mm, the top of the fifth antenna copper sheet is connected with the sixth antenna copper sheet through a connecting copper sheet, and the bottom of the sixth antenna copper sheet is connected with the seventh antenna copper sheet through a connecting copper sheet; the top of the seventh antenna copper sheet is connected with the eighth antenna copper sheet through a connecting copper sheet, the bottom of the eighth antenna copper sheet is connected with the right side edge of the eighth connecting end in a downward extending mode, the fifth antenna copper sheet comprises a ninth antenna copper sheet, a tenth antenna copper sheet, an eleventh antenna copper sheet and a twelfth antenna copper sheet, the ninth antenna copper sheet is horizontally arranged, the length of the ninth antenna copper sheet is 0.52+/-0.01 mm, the width of the ninth antenna copper sheet is 0.13+/-0.01 mm, the left side end of the ninth antenna copper sheet is connected with the middle position of the bottom of the ninth connecting end through a connecting copper sheet, the right side end of the ninth antenna copper sheet is bent downwards to form a tenth antenna copper sheet, the eleventh antenna copper sheet and the twelfth antenna copper sheet are arranged in parallel, the lengths of the tenth antenna copper sheet, the eleventh antenna copper sheet and the twelfth antenna copper sheet are respectively 1.44+/-0.01 mm, the bottom of the tenth antenna copper sheet and the twelfth antenna copper sheet are respectively 0.13+/-0.01 mm, the bottom of the tenth antenna copper sheet is connected with the bottom of the eleventh antenna copper sheet through a connecting copper sheet, the top of the tenth antenna copper sheet is connected with the twelfth antenna copper sheet through a connecting copper sheet, and the right side edge is connected with the twelfth antenna copper sheet is 0.01mm, and the distance between the bottom of the tenth antenna copper sheet and the tenth antenna copper sheet is 0.01mm.
The upper end of the sixth antenna copper sheet is connected with a middle copper sheet which is square and has a side length of 0.26+/-0.01 mm.
The length of the fourth layer of circuit is 3.00 plus or minus 0.01mm, the width of the fourth layer of circuit is 1.70 plus or minus 0.01mm, the eleventh connecting end and the twelfth connecting end are square, and the side length is 0.50 plus or minus 0.01mm.
The beneficial effects of the invention are as follows: the invention breaks the barriers of industry for many years, so that the size of the antenna is directly reduced from 5MM to about 3MM, and the performance of the antenna is better than that of an antenna with 5 MM. The traditional electronic tag adopts a double-sided circuit structure, and the invention adopts a 4-layer circuit structure, so that the performance of the electronic tag is greatly improved through the coupling between layers, and the invention is matched with an M4QT chip to ensure that the performance is more stable.
The invention will be further described with reference to the drawings and detailed description.
Drawings
Fig. 1 is a schematic view of the exploded structure of the present invention (the copper pillar is drawn for convenience, and the length is shown to be much longer than the actual size).
Fig. 2 is a schematic view of a first layer structure of the present invention.
Fig. 3 is a schematic view of a second layer structure of the present invention.
Fig. 4 is a schematic view of a third layer structure of the present invention.
Fig. 5 is a schematic view of a fourth layer structure of the present invention.
In the figure, 1-first layer substrate, 2-second layer substrate, 3-first layer circuit, 31-first copper sheet, 32-second copper sheet, 33-third copper sheet, 4-second layer circuit, 41-first antenna copper bar, 42-second antenna copper bar, 43-first connection end, 44-second connection end, 45-third connection end, 46-fourth connection end, 5-third layer circuit, 51-third antenna copper bar, 52-fourth antenna copper bar, 521-first antenna copper sheet, 522-second antenna copper sheet, 523-third antenna copper sheet, 524-fourth antenna copper sheet, 525-fifth antenna copper sheet, 526-sixth antenna copper sheet, 527-seventh antenna copper sheet, 528-eighth antenna copper sheet, 529-intermediate copper sheet, 53-fifth antenna copper bar, 531-ninth antenna copper sheet, 532-tenth antenna copper sheet, 533-eleventh antenna copper sheet, 534-twelfth antenna copper sheet, 54-fifth connection end, 55-sixth connection end, 56-seventh connection end, 57-eighth connection end, 58-eleventh connection end, 55-ninth connection end, and 58-eleventh connection end.
Detailed Description
This example is a preferred embodiment of the present invention, and other principles and basic structures are the same as or similar to those of this example, and all fall within the scope of the present invention.
Referring to fig. 1 to 5, the electronic tag antenna of the present invention mainly includes a four-layer circuit structure, which is sequentially stacked from top to bottom to form a first layer, a second layer, a third layer and a fourth layer, in this embodiment, two layers of FR4 copper-clad plates (i.e. glass fiber epoxy resin copper-clad plates) are adopted, the FR4 copper-clad plates are double-sided, the two layers of FR4 copper-clad plates are bonded together through an insulating adhesive, wherein the first layer circuit 3 and the second layer circuit 4 are disposed on the first layer substrate 1, the third layer circuit 5 and the fourth layer circuit 6 are disposed on the second layer substrate 2, the first layer substrate 1 and the second layer substrate 2 are respectively double-sided copper-clad plates with a thickness of 3mm, and the thickness of the substrate is 0.2mm.
In this embodiment, the first layer circuit 3 includes 3 copper sheets, the first copper sheet 31 and the second copper sheet 32 are both in a shape of "concave", the third copper sheet 33 is rectangular, the first copper sheet 31 and the second copper sheet 32 are identical in shape and are symmetrically disposed, in this embodiment, by taking one example of them as an illustration, the first copper sheet 31 is disposed near a corner of the first layer substrate 1, two outer sides (i.e., two sides near the edge of the first layer substrate 1) of the first copper sheet 31 are 0.15±0.01mm away from the edge of the first layer substrate 1, an outer side portion (i.e., a portion near the edge of the first layer substrate 1) of the first copper sheet 31 is square, the length and width of an inner side portion (i.e., a portion near the central axis of the first copper sheet 31) of the first copper sheet 31 are rectangular, the length of the long side (a side parallel to the central axis of the first layer substrate 1 or a side parallel to the axis of the first copper sheet 31 and the second copper sheet 32) is 0.60±0.01mm, the length of the wide side copper sheet is 0.50±0.01mm, the length of the inner side portion (i.01 mm) of the first copper sheet 31 and the outer side portion is 0.01mm, and the outer side portion of the first copper sheet 31 is connected to the outer side portion is 0.01mm. The first copper sheet 31 and the second copper sheet 32 are symmetrically arranged, and the distance between the first copper sheet 31 and the second copper sheet 32 is 0.20+/-0.01 mm. In this embodiment, the first copper sheet 31 and the second copper sheet 32 are located at one side of the first layer substrate 1, the third copper sheet 33 is located at the other side of the first layer substrate 1, the third copper sheet 33 is rectangular, the length and width of the third copper sheet 33 are 2.70±0.01mm and 0.50±0.01mm respectively, and the three sides of the third copper sheet 33 are 0.15±0.01mm apart from the edge of the first layer substrate 1 respectively.
In this embodiment, the second layer circuit 4 includes two square wave-shaped antenna copper bars, and the two antenna copper bars are symmetrically disposed, in this embodiment, a single side is taken as an example for specific explanation. The first antenna copper strip 41 includes 6 strip-shaped antenna copper strips, the upper and lower ends of the first antenna copper strip 41 (in this embodiment, the directions shown in the drawing are shown as the up and down directions in the drawing) are respectively provided with a connection end, the length of each antenna copper strip is 1.23±0.01mm, the width of each antenna copper strip is 0.13±0.01mm,6 antenna copper strips are arranged in parallel, the distance between adjacent antenna copper strips is 0.13±0.01mm, the 6 antenna copper strips are connected end to end sequentially through copper strips to form the first antenna copper strip 41, the inner side (i.e. the side close to the central axis of the first layer of substrate 1) of the uppermost antenna copper strip 41 is connected with the first connection end 43 through copper strips, and the inner side (i.e. the side close to the central axis of the first layer of substrate 1) of the lowermost antenna copper strip 41 is connected with the second connection end 44 through copper strips. The first connection end 43 and the second connection end 44 are square, and the side length is 0.50 plus or minus 0.01mm. In this embodiment, the first antenna copper bar 41 and the second antenna copper bar 42 are symmetrically arranged, and the intermediate distance between the first antenna copper bar 41 and the second antenna copper bar 42 is 0.23±0.01mm.
In this embodiment, the third layer of circuit 5 includes three antenna copper strips, namely, a third antenna copper strip 51, a fourth antenna copper strip 52 and a fifth antenna copper strip 53, where in this embodiment, the third antenna copper strip 51 is in an "L" shape and is divided into two sections of antenna copper strips that are perpendicular to each other, one section of copper strip has a length of 1.57±0.01mm, the other section of copper strip has a length of 1.04±0.01mm, the widths of the two sections of copper strips are respectively 0.13±0.01mm, and the upper end (in this embodiment, the directions shown in the drawing represent the directions of up, down, left and right, i.e., the directions of up, down, left and right in the drawing) of the third antenna copper strip 51 is connected to the outer side of the fifth connecting end 54, i.e., the outer side of the third antenna copper strip 51 is located on the same straight line with the outer side of the fifth connecting end 54, and the lower end of the third antenna copper strip 51 is connected to the middle position of the sixth connecting end 55 through the copper strip. The fourth antenna copper strip 52 includes eight sections of antenna copper sheets connected with each other and an upper connecting end and a lower connecting end, the first antenna copper sheet 521 in the fourth antenna copper strip 52 is horizontally arranged (in this embodiment, the directions shown in the drawing are shown as horizontal and vertical, that is, the horizontal and vertical are directions in the drawing), the right side end of the first antenna copper sheet 521 is connected with the middle position of the seventh end 56 through the connecting copper sheet, the length of the first antenna copper sheet 521 is 0.78+ -0.01 mm, the width of the first antenna copper sheet 521 is 0.13+ -0.01 mm, the left side end of the first antenna copper sheet 521 extends vertically downwards to form a second antenna copper sheet 522, the length of the second antenna copper sheet 522 is 1.18+ -0.01 mm, the width of the second antenna copper sheet 522 is 0.13+ -0.01 mm, the third antenna copper sheet 523, the fourth antenna copper sheet 524 and the fifth antenna copper sheet 524 are respectively arranged in parallel with the second antenna copper sheet 522, the lengths of the third antenna copper sheet 523, the fourth antenna copper sheet 524 and the fifth antenna copper sheet are respectively 0.92+ -0.01 mm, the copper sheet 521, the third antenna copper sheet 521, the fourth antenna copper sheet 523 and the fifth antenna copper sheet 524 are respectively connected with the bottom of the fourth antenna copper sheet 522 through the third antenna 523 and the fourth antenna 522 are respectively connected with the bottom through the third antenna 523 and the fourth antenna 525; the sixth antenna copper sheet 526, the seventh antenna copper sheet 527 and the eighth antenna copper sheet 528 are respectively arranged in parallel with the fifth antenna copper sheet 525, the lengths of the sixth antenna copper sheet 526, the seventh antenna copper sheet 527 and the eighth antenna copper sheet 528 are respectively 1.18+/-0.01 mm, the widths of the sixth antenna copper sheet 526, the seventh antenna copper sheet 527 and the eighth antenna copper sheet 528 are respectively 0.13+/-0.01 mm, the top of the fifth antenna copper sheet 525 is connected with the sixth antenna copper sheet 526 through a connecting copper sheet, and the bottom of the sixth antenna copper sheet 526 is connected with the seventh antenna copper sheet 527 through a connecting copper sheet; the top of the seventh antenna copper sheet 527 is connected with the eighth antenna copper sheet 528 through a connection copper sheet, the bottom of the eighth antenna copper sheet 528 is connected with the right side edge of the eighth connection end 57 extending downwards, in this embodiment, the upper end of the sixth antenna copper sheet 526 is connected with a middle copper sheet 529, the middle copper sheet 529 is square, and the side length is 0.26+/-0.01 mm. The fifth antenna copper bar 53 includes a ninth antenna copper sheet 531, a tenth antenna copper sheet 532, an eleventh antenna copper sheet 533 and a twelfth antenna copper sheet 534, the ninth antenna copper sheet 531 is horizontally arranged, the ninth antenna copper sheet 531 is 0.52+ -0.01 mm long, the ninth antenna copper sheet 531 is 0.13+ -0.01 mm wide, the left end of the ninth antenna copper sheet 531 is connected with the middle position of the bottom of the ninth connection end 58 through a connecting copper sheet, the right end of the ninth antenna copper sheet 531 is bent downwards to form a tenth antenna copper sheet 532, the eleventh antenna copper sheet 533 and the twelfth antenna copper sheet 534 are arranged in parallel, the lengths of the tenth antenna copper sheet 532, the eleventh antenna copper sheet 533 and the twelfth antenna copper sheet 534 are respectively 1.44+ -0.01 mm, the widths of the tenth antenna copper sheet 532, the eleventh antenna copper sheet 533 and the twelfth antenna copper sheet 534 are respectively 0.13+ -0.01 mm, the bottom of the tenth antenna copper sheet 531 is connected with the eleventh antenna copper sheet 533 through the connecting copper sheet, the top 533 is connected with the twelfth antenna copper sheet 534 through the connecting copper sheet, the bottom of the twelfth antenna copper sheet 534, and the tenth antenna copper sheet 534 extends downwards to the right side edge of the tenth antenna copper sheet 534. In this embodiment, each antenna copper sheet that sets up vertically all sets up in parallel, and the distance between each antenna copper sheet is 0.13±0.01mm.
In this embodiment, the fourth layer of wires 6 is rectangular, the length of the fourth layer of wires 6 is 3.00±0.01mm, the width of the fourth layer of wires 6 is 1.70±0.01mm, the lower left corner of the fourth layer of wires 6 (in this embodiment, the directions shown in the drawing indicate the directions of up, down, left and right, i.e., the directions of up, down, left and right are the directions in the drawing) is connected with an eleventh connecting end 61, the upper right corner of the fourth layer of wires 6 is connected with a twelfth connecting end 62, the eleventh connecting end 61 and the twelfth connecting end 62 are square, and the side length is 0.50±0.01mm.
In this embodiment, the wires of the layers are connected through vias (or referred to as conductive columns), wherein the upper end portion of the first copper sheet 31 is connected to the fifth connection end 54, the lower end portion of the second copper sheet 32 is connected to the eleventh connection end 61, the upper end of the third copper sheet 33 is connected to the twelfth connection end 62, the lower end of the third copper sheet 33 is connected to the tenth connection end 59, the first connection end 43 is connected to the seventh connection end 56, the second connection end 44 is connected to the sixth connection end 55, the third connection end 45 is connected to the ninth connection end 58, and the fourth connection end 46 is connected to the eighth connection end 57.
The invention also protects an electronic tag, the electronic tag comprises the electronic tag antenna and a radio frequency chip, the radio frequency chip adopts a radio frequency chip with the model of M4QT, the radio frequency chip is connected to a first copper sheet 31 and a second copper sheet 32 of the electronic tag antenna, in the embodiment, the radio frequency chip with the model of M4QT comprises four pins, wherein a pin 1 and a pin 3 (namely two pins at opposite angles) of the radio frequency chip are respectively connected to the first copper sheet 31 and the second copper sheet 32, or a pin 2 and a pin 4 of the radio frequency chip are respectively connected to the first copper sheet 31 and the second copper sheet 32.
When the antenna is used, the antenna is attached to the occasion where the antenna is needed, so that the fourth layer of circuit 6 is contacted with the used metal device, and the antenna can be prolonged through the metal device.
The invention breaks the barriers of industry for many years, so that the size of the antenna is directly reduced from 5MM to about 3MM, and the performance of the antenna is better than that of an antenna with 5 MM. The traditional electronic tag adopts a double-sided circuit structure, and the invention adopts a 4-layer circuit structure, so that the performance of the electronic tag is greatly improved through the coupling between layers, and the invention is matched with an M4QT chip to ensure that the performance is more stable.
Claims (10)
1. A microminiature RFID electronic tag antenna is characterized in that: the electronic tag antenna comprises a four-layer circuit structure, a first layer circuit, a second layer circuit, a third layer circuit and a fourth layer circuit are sequentially arranged from top to bottom in a stacked mode, the first layer circuit comprises 3 copper sheets, the first copper sheets and the second copper sheets are all in a concave shape, the third copper sheets are rectangular, the second layer circuit comprises two square-wave-shaped antenna copper bars, the first antenna copper bars and the second antenna copper bars are respectively arranged symmetrically, the third layer circuit comprises three antenna copper bars, the third antenna copper bars, the fourth antenna copper bars and the fifth antenna copper bars are respectively arranged, the lower left corner of the fourth layer circuit is connected with an eleventh connecting end, the upper right corner of the fourth layer circuit is connected with a twelfth connecting end, each layer circuit is connected with one end of the third antenna copper bars through a conductive column, the other end of the third antenna copper bars is connected with one end of the first antenna copper bars, the other end of the first antenna copper bars is connected with one end of the fourth antenna copper bars, the other end of the fourth antenna copper bars is connected with the other end of the second copper sheets, the fourth antenna copper bars are connected with the other end of the third antenna copper bars, the fourth antenna copper bars are connected with the other end of the twelfth connecting end of the fourth antenna copper bars, and the fourth antenna copper bars are connected with the other end of the twelve antenna copper bars.
2. The ultra-small RFID electronic tag antenna of claim 1, wherein: the electronic tag antenna is characterized in that the electronic tag antenna is composed of a first layer of substrate and a second layer of substrate, the first layer of substrate and the second layer of substrate are double-sided boards, a first layer of circuit and a second layer of circuit are arranged on the first layer of substrate, a third layer of circuit and a fourth layer of circuit are arranged on the second layer of substrate, and the first layer of substrate and the second layer of substrate are adhered together through insulating glue.
3. The ultra-small RFID electronic tag antenna of claim 2, wherein: the first layer of substrate and the second layer of substrate respectively adopt a double-sided copper-clad plate with the thickness of 3mm x 3mm, and the thickness of the substrate is 0.2mm.
4. The ultra-small RFID electronic tag antenna of claim 1, wherein: the first copper sheet is close to one corner of the first layer substrate, two outer side edges of the first copper sheet are 0.15+/-0.01 mm away from the edge of the first layer substrate, the outer side portions of the first copper sheet are square, the length and the width of the first copper sheet are 0.50+/-0.01 mm respectively, the inner side portions of the first copper sheet are rectangular, the length of the long side is 0.60+/-0.01 mm, the length of the wide side is 0.50+/-0.01 mm, a connecting portion is arranged between the outer side portions and the inner side portions of the first copper sheet, the length and the width of the connecting portion are 0.25+/-0.01 mm square, the outer side edges of the outer side portions, the connecting portion and the inner side portions are located on the same straight line, the first copper sheet and the second copper sheet are identical in shape and are symmetrically arranged, and the distance between the first copper sheet and the second copper sheet is 0.20+/-0.01 mm.
5. The ultra-small RFID electronic tag antenna of claim 1, wherein: the first copper sheet and the second copper sheet are positioned on one side of the first layer of substrate, the third copper sheet is positioned on the other side of the first layer of substrate, the third copper sheet is rectangular, the length and the width of the third copper sheet are respectively 2.70+/-0.01 mm and 0.50+/-0.01 mm, and the distance between the three edges of the third copper sheet and the edge of the first layer of substrate is respectively 0.15+/-0.01 mm.
6. The ultra-small RFID electronic tag antenna of claim 1, wherein: the first antenna copper strip in the second layer circuit include 6 rectangular shape antenna copper strips, both ends are provided with a link respectively about the first antenna copper strip, every antenna copper strip length is 1.23 + -0.01 mm, antenna copper strip width is 0.13 + -0.01 mm,6 antenna copper strip parallel arrangement, the distance between the adjacent antenna copper strip is 0.13 + -0.01 mm,6 antenna copper strip head and the tail pass through the copper sheet in order to be connected and form first antenna copper strip, the antenna copper strip inboard in first antenna copper strip top is connected with the first link through the copper sheet, the antenna copper strip inboard in first antenna copper strip bottommost is connected with the second link through the copper sheet, the second antenna copper strip in the second layer circuit sets up with first antenna copper strip symmetry, first antenna copper strip and second antenna copper strip intermediate distance are 0.23 + -0.01 mm.
7. The ultra-small RFID electronic tag antenna of claim 6, wherein: the first connecting end and the second connecting end are square, and the side length is 0.50+/-0.01 mm.
8. The ultra-small RFID electronic tag antenna of claim 1, wherein: the third antenna copper bar is L-shaped and is divided into two sections of antenna copper bars which are mutually perpendicular, wherein the length of one section of copper bar is 1.57+/-0.01 mm, the length of the other section of copper bar is 1.04+/-0.01 mm, the widths of the two sections of copper bars are 0.13+/-0.01 mm respectively, the upper end of the third antenna copper bar is connected with the outer side edge of the fifth connecting end, the lower end head of the third antenna copper bar is connected with the middle position of the sixth connecting end through a copper bar, the fourth antenna copper bar comprises eight sections of antenna copper bars which are mutually connected, an upper connecting end and a lower connecting end, the first antenna copper bar in the fourth antenna copper bar is horizontally arranged, the right side end of the first antenna copper bar is connected with the middle position of the seventh end head through a connecting copper bar, the length of the first antenna copper bar is 0.78+/-0.01 mm, the width of the first antenna copper bar is 0.13+/-0.01 mm, the left end of the first antenna copper sheet vertically extends downwards to form a second antenna copper sheet, the length of the second antenna copper sheet is 1.18+/-0.01 mm, the width of the second antenna copper sheet is 0.13+/-0.01 mm, the third antenna copper sheet, the fourth antenna copper sheet and the fifth antenna copper sheet are respectively arranged in parallel with the second antenna copper sheet, the lengths of the third antenna copper sheet, the fourth antenna copper sheet and the fifth antenna copper sheet are respectively 0.92+/-0.01 mm, the widths of the third antenna copper sheet, the fourth antenna copper sheet and the fifth antenna copper sheet are respectively 0.13+/-0.01 mm, the bottom of the second antenna copper sheet is connected with the third antenna copper sheet through a connecting copper sheet, the top of the third antenna copper sheet is connected with the fourth antenna copper sheet through a connecting copper sheet, and the bottom of the fourth antenna copper sheet is connected with the fifth antenna copper sheet through a connecting copper sheet; the sixth antenna copper sheet, the seventh antenna copper sheet and the eighth antenna copper sheet are respectively arranged in parallel with the fifth antenna copper sheet, the lengths of the sixth antenna copper sheet, the seventh antenna copper sheet and the eighth antenna copper sheet are respectively 1.18+/-0.01 mm, the widths of the sixth antenna copper sheet, the seventh antenna copper sheet and the eighth antenna copper sheet are respectively 0.13+/-0.01 mm, the top of the fifth antenna copper sheet is connected with the sixth antenna copper sheet through a connecting copper sheet, and the bottom of the sixth antenna copper sheet is connected with the seventh antenna copper sheet through a connecting copper sheet; the top of the seventh antenna copper sheet is connected with the eighth antenna copper sheet through a connecting copper sheet, the bottom of the eighth antenna copper sheet is connected with the right side edge of the eighth connecting end in a downward extending mode, the fifth antenna copper sheet comprises a ninth antenna copper sheet, a tenth antenna copper sheet, an eleventh antenna copper sheet and a twelfth antenna copper sheet, the ninth antenna copper sheet is horizontally arranged, the length of the ninth antenna copper sheet is 0.52+/-0.01 mm, the width of the ninth antenna copper sheet is 0.13+/-0.01 mm, the left side end of the ninth antenna copper sheet is connected with the middle position of the bottom of the ninth connecting end through a connecting copper sheet, the right side end of the ninth antenna copper sheet is bent downwards to form a tenth antenna copper sheet, the eleventh antenna copper sheet and the twelfth antenna copper sheet are arranged in parallel, the lengths of the tenth antenna copper sheet, the eleventh antenna copper sheet and the twelfth antenna copper sheet are respectively 1.44+/-0.01 mm, the bottom of the tenth antenna copper sheet and the twelfth antenna copper sheet are respectively 0.13+/-0.01 mm, the bottom of the tenth antenna copper sheet is connected with the bottom of the eleventh antenna copper sheet through a connecting copper sheet, the top of the tenth antenna copper sheet is connected with the twelfth antenna copper sheet through a connecting copper sheet, and the right side edge is connected with the twelfth antenna copper sheet is 0.01mm, and the distance between the bottom of the tenth antenna copper sheet and the tenth antenna copper sheet is 0.01mm.
9. The ultra-small RFID electronic tag antenna of claim 8, wherein: the upper end of the sixth antenna copper sheet is connected with a middle copper sheet which is square and has a side length of 0.26+/-0.01 mm.
10. An electronic tag is characterized in that: the electronic tag comprises the ultra-small RFID electronic tag antenna and a radio frequency chip, wherein the radio frequency chip is arranged on the electronic tag antenna, and the ultra-small RFID electronic tag antenna is as claimed in any one of claims 1 to 9.
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| CN201910553577.8A CN110263901B (en) | 2019-06-25 | 2019-06-25 | Ultra-small RFID electronic tag antenna and electronic tag |
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| CN201910553577.8A CN110263901B (en) | 2019-06-25 | 2019-06-25 | Ultra-small RFID electronic tag antenna and electronic tag |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007213514A (en) * | 2006-02-13 | 2007-08-23 | Dainippon Printing Co Ltd | Non-contact data carrier |
| CN101533939A (en) * | 2009-04-09 | 2009-09-16 | 山西大学 | Collaboratively designed double frequency-band antenna-filter device |
| WO2011118379A1 (en) * | 2010-03-24 | 2011-09-29 | 株式会社村田製作所 | Rfid system |
| CN102760941A (en) * | 2011-04-29 | 2012-10-31 | 深圳光启高等理工研究院 | Metamaterial radio frequency antenna with multiple layers of substrates and making method thereof |
| CN104218304A (en) * | 2013-06-04 | 2014-12-17 | 西克股份公司 | Antenna |
| CN210377512U (en) * | 2019-06-25 | 2020-04-21 | 深圳市易太思智能科技有限责任公司 | Subminiature RFID electronic tag antenna and electronic tag |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI647620B (en) * | 2017-06-22 | 2019-01-11 | 恩旭有限公司 | Miniaturized radio frequency identification tag |
-
2019
- 2019-06-25 CN CN201910553577.8A patent/CN110263901B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007213514A (en) * | 2006-02-13 | 2007-08-23 | Dainippon Printing Co Ltd | Non-contact data carrier |
| CN101533939A (en) * | 2009-04-09 | 2009-09-16 | 山西大学 | Collaboratively designed double frequency-band antenna-filter device |
| WO2011118379A1 (en) * | 2010-03-24 | 2011-09-29 | 株式会社村田製作所 | Rfid system |
| CN102760941A (en) * | 2011-04-29 | 2012-10-31 | 深圳光启高等理工研究院 | Metamaterial radio frequency antenna with multiple layers of substrates and making method thereof |
| CN104218304A (en) * | 2013-06-04 | 2014-12-17 | 西克股份公司 | Antenna |
| CN210377512U (en) * | 2019-06-25 | 2020-04-21 | 深圳市易太思智能科技有限责任公司 | Subminiature RFID electronic tag antenna and electronic tag |
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