CN217133723U

CN217133723U - Structure capable of improving comprehensive performance of three-dimensional tag antenna

Info

Publication number: CN217133723U
Application number: CN202123021791.0U
Authority: CN
Inventors: 黄可成; 王林; 饶泽文; 王莹
Original assignee: Shenzhen Ruichi Iot Technology Co ltd
Current assignee: Shenzhen Ruichi Iot Technology Co ltd
Priority date: 2021-12-03
Filing date: 2021-12-03
Publication date: 2022-08-05
Anticipated expiration: 2031-12-03

Abstract

The utility model provides a can promote structure of three-dimensional label antenna comprehensive properties, including the label, the label includes GND face and antenna openly, an adjacent side is equipped with the antenna structure of buckling between GND face and the antenna openly, GND face and antenna openly pass through the laminating of antenna structure fifty percent discount of buckling, the GND face is the attached face of label, the GND face is equipped with the impedance adjustment tank, the antenna openly is the discernment face of label, the antenna openly is equipped with chip and binds the structure, the beneficial effects of the utility model reside in that: the utility model discloses an adjustment GND face's slot line length and shape can be under the less influence of performance to on the metal covering, optimize the performance of antenna under non-metallic environment, promote the comprehensive properties of antenna to reduce the use of multiclass label, reduce manpower and materials.

Description

Structure capable of improving comprehensive performance of three-dimensional tag antenna

[ technical field ] A method for producing a semiconductor device

The utility model relates to a structure of antenna especially relates to a can promote three-dimensional tag antenna comprehensive properties's structure.

[ background of the invention ]

Radio Frequency Identification (RFID) is an intelligent Identification technology that reads relevant data by using a Radio Frequency technology to automatically identify a target by using non-contact two-way communication, and a conventional RFID system mainly includes three major parts, namely a tag, a reader and a host control system, wherein the performance of the tag plays a key role in the whole system, and the RFID has extremely high requirements on the design of a tag antenna in order to overcome extreme application scenarios.

Compared with a common antenna, the tag antenna needs to be in impedance matching with a used RFID chip, and microstrip line or coaxial line feeding is not needed, so that different loading technologies are introduced to the antenna design to meet the requirement of conjugate matching with the chip, and meanwhile, other index requirements such as gain, efficiency and directivity of the antenna are also considered, a complex application scene is met, and the complexity of the antenna design is greatly improved.

The common forms of UHF RFID tag antennas include half-wave dipole antennas, microstrip antennas and the like, the antennas have the characteristics of small volume, planarity and low section, are low in cost and are easy to produce in large batch, and the three-dimensional forms of planar inverted-F antennas are commonly used as the antenna foundation of tags in a metal environment.

A label Antenna is designed by using a PIFA (Planar Inverted-F Antenna), which can ensure that a label has good performance when being attached to metal, but when the label is attached to a non-metal material, the performance of the label is greatly attenuated, because the label is equivalent to a turned half-wave dipole Antenna when being attached to the non-metal material, the distance between the upper surface and the lower surface (equivalent to two oscillators) of the Antenna is very close, normal impedance matching is disturbed, the electrical length is shortened, the integral frequency of the label is higher, the peak value of the reading distance is not good, and the problem causes that the application range of the label is severely limited, and a plurality of labels need to be arranged to meet complex application scenes.

[ Utility model ] content

The utility model aims to solve the above-mentioned problem that present three-dimensional tag antenna exists, and provide a structure that can promote three-dimensional tag antenna comprehensive properties.

The utility model discloses a realize through following technical scheme: the utility model provides a can promote three-dimensional label antenna comprehensive properties's structure, includes the label, the label includes GND face and antenna openly, an adjacent side is equipped with the antenna bending structure between GND face and the antenna openly, GND face and antenna openly pass through the laminating of antenna bending structure fifty percent discount, the GND face is the attached face of label, the GND face is equipped with the impedance adjustment groove, the antenna openly is the discernment face of label, the antenna openly is equipped with chip binding structure.

Further, GND face and antenna openly form integral type connection structure through the antenna structure of buckling, the antenna structure of buckling is the short-circuit pin of label.

Furthermore, the GND surface is an adjusting structure for adjusting and improving the comprehensive performance of the label, the label is attached to the metal surface, the GND surface is in contact with the metal surface, the metal surface becomes the GND surface of the label, and a circuit on the GND surface does not act on the actual performance of the label due to the interference of the metal surface; the tag is attached to the non-metal surface, the GND surface becomes a part of the tag radiation oscillator, and the impedance of the antenna can be adjusted by the line of the GND surface so as to improve the performance of the tag.

Further, the impedance adjusting groove is of an adjusting groove structure with adjustable shape and size, and the performance of the tag is adjusted by changing the shape and size of the groove in the nonmetal environment.

Further, the chip binding structure is a binding part of the tag chip.

The beneficial effects of the utility model reside in that: the utility model discloses an adjustment GND face's slot line length and shape can be under the less influence of performance to on the metal covering, optimize the performance of antenna under non-metallic environment, promote the comprehensive properties of antenna to reduce the use of multiclass label, reduce manpower and materials.

[ description of the drawings ]

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the expanded structure of the present invention;

reference numerals are as follows: 1. a label; 11. a GND surface; 12. an antenna front face; 13. an antenna bending structure; 14. an impedance adjusting slot; 15. and (5) a chip binding structure.

[ detailed description ] embodiments

The invention will be further described with reference to the accompanying drawings and specific embodiments:

as shown in fig. 1 and 2, a structure capable of improving comprehensive performance of a three-dimensional tag antenna comprises a tag 1, the tag 1 comprises a GND surface 11 and an antenna front surface 12, an adjacent side surface between the GND surface 11 and the antenna front surface 12 is provided with an antenna bending structure 13, the GND surface 11 and the antenna front surface 12 are folded and attached through the antenna bending structure 13, the GND surface 11 is an attachment surface of the tag 1, the GND surface 11 is provided with an impedance adjusting groove 14, the antenna front surface 12 is an identification surface of the tag 1, and the antenna front surface 12 is provided with a chip binding structure.

Preferably, the GND plane 11 and the antenna front plane 12 form an integrated connection structure through an antenna bending structure 13, and the antenna bending structure 13 is a shorting pin of the tag.

Preferably, the GND plane 11 is an adjusting structure for adjusting and improving the comprehensive performance of the tag 1, the tag 1 is attached to the metal plane, the GND plane 11 is in contact with the metal plane, the metal plane becomes the GND plane of the tag 1, and a line on the GND plane 11 does not act on the actual performance of the tag 1 due to interference of the metal plane; the tag 1 is attached to a non-metal surface, the GND surface 11 becomes a part of a radiating oscillator of the tag 1, and the impedance of the antenna can be adjusted by the circuit of the GND surface 11 so as to improve the performance of the tag 1.

Preferably, the impedance adjusting slot 14 is an adjusting slot structure with adjustable shape and size, and the impedance adjusting slot 14 adjusts the performance of the tag 1 in a non-metal environment by changing the shape and size of the slot.

Preferably, the chip binding structure 15 is a binding site of the tag chip.

Given the above disclosure and teachings, those skilled in the art will be able to make numerous changes and modifications to the above embodiments, for example to arrange more transverse or longitudinal shaped hoses on the application belt to meet more demands. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should fall within the protection scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.

Claims

1. The utility model provides a can promote three-dimensional tag antenna comprehensive properties's structure which characterized in that: including the label, the label includes that GND face and antenna are positive, an adjacent side is equipped with the antenna bending structure between GND face and the antenna are positive, GND face and antenna openly laminate through the antenna bending structure fifty percent discount, the GND face is the attached face of label, the GND face is equipped with the impedance adjustment groove, the antenna openly is the discernment face of label, the antenna openly is equipped with chip binding structure.

2. The structure capable of improving the comprehensive performance of the three-dimensional tag antenna according to claim 1, characterized in that: GND face and antenna openly form integral type connection structure through the antenna structure of buckling, the antenna structure of buckling is the short circuit needle of label.

3. The structure capable of improving the comprehensive performance of the three-dimensional tag antenna according to claim 1, characterized in that: the GND surface is an adjusting structure for adjusting and improving the comprehensive performance of the label, the label is attached to the metal surface, the GND surface is in contact with the metal surface, the metal surface becomes the GND surface of the label, and a circuit on the GND surface does not act on the actual performance of the label due to the interference of the metal surface; the tag is attached to the non-metal surface, the GND surface becomes a part of the tag radiation oscillator, and the impedance of the antenna can be adjusted by the line of the GND surface so as to improve the performance of the tag.

4. The structure capable of improving the comprehensive performance of the three-dimensional tag antenna according to claim 3, characterized in that: the impedance adjusting groove is of an adjusting groove structure with adjustable shape and size, and the performance of the impedance adjusting groove in a nonmetallic environment is adjusted by changing the shape and size of the groove.

5. The structure capable of improving the comprehensive performance of the three-dimensional tag antenna according to claim 1, characterized in that: the chip binding structure is a binding part of the label chip.