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WO2018014573A1 - Étiquette d'antenne électronique rfid pourvue d'une pièce de rayonnement parasite - Google Patents

Étiquette d'antenne électronique rfid pourvue d'une pièce de rayonnement parasite Download PDF

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Publication number
WO2018014573A1
WO2018014573A1 PCT/CN2017/077695 CN2017077695W WO2018014573A1 WO 2018014573 A1 WO2018014573 A1 WO 2018014573A1 CN 2017077695 W CN2017077695 W CN 2017077695W WO 2018014573 A1 WO2018014573 A1 WO 2018014573A1
Authority
WO
WIPO (PCT)
Prior art keywords
dielectric plate
microstrip
arm
feeding
rfid electronic
Prior art date
Application number
PCT/CN2017/077695
Other languages
English (en)
Chinese (zh)
Inventor
周丹
Original Assignee
周丹
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 周丹 filed Critical 周丹
Publication of WO2018014573A1 publication Critical patent/WO2018014573A1/fr

Links

Classifications

    • 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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support

Definitions

  • the present invention relates to an RFID electronic antenna tag provided with a parasitic radiation sheet.
  • RFID Radio Frequency Identification
  • Radio Frequency Identification is a communication technology that can identify a specific target by radio signals and read and write related data without identifying the mechanical or optical contact between the system and a specific target.
  • RFID Radio Frequency Identification
  • RFID tag antennas are an important part of RFID systems, and their performance will greatly affect the efficiency and quality of the entire RFID system.
  • the main factors affecting the performance of the RFID antenna include antenna size, operating frequency band, impedance and gain. Therefore, if a better RFID antenna is needed, it should have better antenna performance.
  • An RFID electronic antenna tag provided with a parasitic radiation sheet, comprising a first dielectric plate and a second dielectric plate each being rectangular and stacked;
  • the top surface of the dielectric plate is provided with a microstrip antenna;
  • the top surface of the second dielectric plate is provided with an isolation ring group;
  • the isolation ring group is located between the top surface of the second dielectric plate and the bottom surface of the first dielectric plate;
  • the first ring and the second ring are disposed in a concentric manner.
  • the RFID chip is further disposed on a bottom surface of the second dielectric plate, and the RFID chip is electrically connected to the microstrip antenna.
  • the microstrip antenna includes a microstrip disk; the first dielectric plate is configured, and the two long sides are respectively a first side and a second side, and the two short sides are respectively a third side and Fourth side [0006] a feeding groove is disposed on a side of the microstrip disc near the first side, and a concave arm is disposed in the feeding recess
  • the ring arm is connected to the inner inner edge of the feeding groove, and the inner inner side of the feeding groove further has a plurality of ⁇ -shaped rods;
  • the first dielectric plate further comprises a feeding piece, the feeding piece and the feeding piece The arms are connected by a feeding microstrip arm
  • the side of the microstrip disc near the second side, the side close to the third side, and the side away from the third side are provided with groove type radiation units; each of the groove type radiation units
  • the utility model comprises a rectangular radiation notch, a support block extending from the two side edges of the rectangular radiation notch to the middle, a cross bar extending from the support block to the middle;
  • the groove type radiation unit further comprises a first radiation arm having a concave shape And a rectangular second radiating arm, the second radiating arm is located at a notch of the first radiating arm; the first radiating arm and the second radiating arm are respectively connected to the corresponding crossbar through the feeding rod;
  • the inner side extends to the center of the microstrip disc with a convex depression having a convex shape, and the inner inner side of the convex depression has a circular depression extending toward the center of the microstrip disc.
  • the center of the microstrip disc is provided with a triangular cutout, one corner of the triangular cutout is aligned with the second side, and the other two corners are respectively aligned with the third side and the fourth side.
  • the width of the feeding microstrip arm is N
  • the width of the feeding groove is K
  • the number of the tang rods is C
  • the shell 1JK 20C*N.
  • the side of the first dielectric plate adjacent to the third side is further provided with an isolation microstrip, and the side of the isolation microstrip away from the third side is provided with a sawtooth structure;
  • the feeding piece and the microstrip disk are provided with an isolation groove, and the isolation groove is filled with silicon dioxide.
  • the RFID electronic antenna has good electrical performance and high practicability through excellent structural design.
  • FIG. 2 is a plan view of a first dielectric plate of the present invention
  • Figure 3 is a partial enlarged view of Figure 2;
  • FIG. 4 is a plan view of a second dielectric plate of the present invention.
  • FIG. 5 is a graph of simulation and test of S11 parameters of an antenna embodiment of the present invention.
  • FIG. 6 is a gain simulation test curve diagram and an efficiency test curve diagram of an antenna embodiment of the present invention.
  • FIGS. 1 to 7 illustrate:
  • v3-isolated microstrip v4-parasitic radiation sheet; v5-feeding sheet; v6-isolation groove; v7-feeding microstrip arm; v8-microstrip disk; v81-feeding groove; - ring arm; V83-T-bar; v84- lack triangular hole; v85- support block; v86- crossbar; v87- feed pole; v88- a first radiating arm; v 89- second radiating arm;
  • an RFID electronic antenna tag provided with a parasitic radiation sheet includes a first dielectric plate v1 and a second medium which are both rectangular and stacked together.
  • a top surface of the first dielectric plate v1 is provided with a microstrip antenna;
  • a top surface of the second dielectric plate v2 is provided with an isolation ring group; the isolation ring group is located on a top surface of the second dielectric plate v2 and the first dielectric plate v1
  • the spacer ring group includes two concentrically disposed first ring v21 and second ring v22; further comprising an RFID chip 1 disposed on a bottom surface of the second dielectric plate v2, The RFID chip is electrically connected to the microstrip antenna.
  • the RFID electronic antenna has good electrical performance and strong practicability.
  • the microstrip antenna includes a microstrip disk v8; the first dielectric plate v1 is set, and the two long sides thereof are respectively First side and second side, The two short sides are respectively a third side and a fourth side; a side of the microstrip disk v8 near the first side is provided with a feeding groove v81, and a feeding groove v81 is provided with a concave ring arm v82 The ring arm v82 is connected to the inner inner side of the feeding groove v81, and the inner inner side of the feeding groove v81 further has a plurality of T-shaped rods V83; the first dielectric plate v1 further includes a feeding piece v5.
  • the feeding piece v5 and the ring arm v82 are connected by a feeding microstrip arm v7; the microstrip disk v8 is adjacent to a side of the second side, a side close to the third side, and a side away from the third side
  • the side is provided with a groove type radiation unit; each of the groove type radiation units comprises a rectangular radiation notch, a support block v85 extending from the two sides of the rectangular radiation notch to the middle, and each support block v85 is intermediate The extending cross-bar v86;
  • the grooved radiating unit further includes a first radiating arm v88 having a concave shape and a second radiating arm v89 having a rectangular shape, the second radiating arm v89 being located at a notch of the first radiating arm v88;
  • the first radiating arm v8 8 and the second radiating arm v89 are respectively connected to the corresponding crossbar v86 through the feeding rod v87 ;
  • the inner inner side of the mouth extend
  • the first dielectric plate v1 and the second dielectric plate v2 are superimposed, that is, the mutual coupling effect between the isolation ring group and the microstrip antenna, and the antenna characteristics can be achieved after the coupling interference is avoided as much as possible.
  • the simulation and test of the IS11I parameters of the embodiment of the present invention are more consistent, the tested 10dB impedance bandwidth is 28.4%, and the stop band IS11I is close to zero.
  • the gain curve of the simulation and the test in the embodiment of the present invention is in agreement, the average gain in the passband is 8.2 dBi, and the roll-off edge has a high roll-off degree, and the out-of-band rejection exceeds in a wide stop band.
  • An RFID electronic antenna tag provided with a parasitic radiation piece according to the embodiment, wherein the center of the microstrip disk v8 is provided with a triangular hole v84, and an angle of the triangular hole v84 is aligned with the second The other two corners are aligned with the third side and the fourth side, respectively. Can effectively reduce coupling interference.
  • the radius of the first ring v21 is twice the radius of the second ring v22; the isolation performance is optimal, and the isolation is improved.
  • an RFID electronic antenna tag provided with a parasitic radiation piece
  • the width of the feeding microstrip arm V 7 is N
  • the width of the feeding groove v81 is K
  • the ⁇ -shaped rod V83 The number is C
  • K 20C * N. Full
  • the average gain in the pass band can reach the level of 9.15dBi.
  • the number of the T-shaped bars V83 is 2. This number of T-shapes is optimally matched to the microstrip antenna and the standing wave ratio can be reduced to 1.15.
  • An RFID electronic antenna tag provided with a parasitic radiation sheet further includes a package portion 2 for packaging the first dielectric plate v1 and the second dielectric plate v2 together, the RFID device In the package part 2
  • the side of the first dielectric plate v1 adjacent to the third side is further provided with an isolation microstrip v3, and the isolated microstrip v3 is far away.
  • the side of the third side is provided with a sawtooth structure; the standing wave ratio can be effectively reduced, and the antenna characteristics are improved.
  • An RFID electronic antenna tag provided with a parasitic radiation piece according to the embodiment, wherein the feeding piece v5 and the microstrip disk v8 are provided with an isolation groove v6, and the isolation groove v6 is filled with Silica; reduces return loss and improves characteristics.
  • the communication antenna is a non-size required antenna, and the above requirements are met as long as the hole and the hole are arranged in the bending direction; but if better stable performance is required, the specific size of the antenna can be optimized as follows:
  • the lengths and heights of the first dielectric plate and the second dielectric plate are: 55 mm and 40 mm, respectively;
  • the line widths of the first ring and the second ring are: lmm, and their inner circle radii are: 16 mm, 8 mm;
  • the radius of the belt disc is: 16mm;
  • the width of the feeding groove and the side lengths of the two sides are: 12mm and 6mm respectively;
  • the line width of the ring arm is lmm, and the length and height of the inner frame are: 6mm and 2.5mm;
  • the line width of the rod is 0.2mm, and the length of the rod is: 1.2mm and 0.8mm;
  • the size of the feed piece is not limited, the total area is not more than 36 square mm;

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Support Of Aerials (AREA)
  • Waveguide Aerials (AREA)

Abstract

L'invention concerne une étiquette d'antenne électronique RFID pourvue d'une pièce de rayonnement parasite, l'étiquette comprenant une première plaque diélectrique et une seconde plaque diélectrique, les deux étant rectangulaires et empilées l'une sur l'autre, la surface supérieure de la première plaque diélectrique étant pourvue d'une antenne micro-ruban; la surface supérieure de la seconde plaque diélectrique est pourvue d'un ensemble d'anneaux d'isolation; l'ensemble d'anneaux d'isolation est situé entre la surface supérieure de la seconde plaque diélectrique et la surface inférieure de la première plaque diélectrique; et l'ensemble d'anneaux d'isolation comprend deux premier et second anneaux circulaires disposés de manière concentrique. L'étiquette comprend en outre une puce RFID, la puce RFID étant disposée sur la surface inférieure de la seconde plaque diélectrique, et la puce RFID étant électriquement connectée à l'antenne micro-ruban. Une antenne électronique RFID est activée pour avoir une meilleure performance électrique et avoir un caractère pratique élevé au moyen d'une conception de structure satisfaisante.
PCT/CN2017/077695 2016-07-20 2017-03-22 Étiquette d'antenne électronique rfid pourvue d'une pièce de rayonnement parasite WO2018014573A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201610574084.9A CN106025535A (zh) 2016-07-20 2016-07-20 设有寄生辐射片的rfid电子天线标签
CN201610574084.9 2016-07-20

Publications (1)

Publication Number Publication Date
WO2018014573A1 true WO2018014573A1 (fr) 2018-01-25

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PCT/CN2017/077695 WO2018014573A1 (fr) 2016-07-20 2017-03-22 Étiquette d'antenne électronique rfid pourvue d'une pièce de rayonnement parasite

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CN (1) CN106025535A (fr)
WO (1) WO2018014573A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106025535A (zh) * 2016-07-20 2016-10-12 周丹 设有寄生辐射片的rfid电子天线标签

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060049986A1 (en) * 2004-09-08 2006-03-09 Dunn Gregory J Integrated patch antenna and electronics assembly and method for fabricating
CN105490177A (zh) * 2016-01-21 2016-04-13 欧志洪 配电柜
CN105576354A (zh) * 2015-12-21 2016-05-11 天津中兴智联科技有限公司 用于rfid系统的近场天线
CN106025535A (zh) * 2016-07-20 2016-10-12 周丹 设有寄生辐射片的rfid电子天线标签

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060049986A1 (en) * 2004-09-08 2006-03-09 Dunn Gregory J Integrated patch antenna and electronics assembly and method for fabricating
CN105576354A (zh) * 2015-12-21 2016-05-11 天津中兴智联科技有限公司 用于rfid系统的近场天线
CN105490177A (zh) * 2016-01-21 2016-04-13 欧志洪 配电柜
CN106025535A (zh) * 2016-07-20 2016-10-12 周丹 设有寄生辐射片的rfid电子天线标签

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