All-round nonmetal RFID tag antenna

Abstract

The utility model relates to an all-round nonmetal RFID tag antenna which is not only good in universality, but also good in antenna use effect, two sides of an antenna impedance adjusting ring are respectively provided with an antenna radiation arm, and the lower side of the antenna impedance adjusting ring is provided with two connecting parts which are oppositely arranged. The connecting part is composed of a first oblique line section, a second oblique line section, a third oblique line section, a first transverse line section and a second transverse line section, the second oblique line section is arranged between the first oblique line section and the third oblique line section, one end of the first transverse line section is connected with the lower end of the first oblique line section, and one end of the second transverse line section is connected with the upper end of the second oblique line section; the upper ends of the first oblique line segments in the two connecting parts are respectively connected with the lower end of the antenna impedance adjusting ring, the two first oblique line segments are distributed in a splayed shape, and the lower ends of the third oblique line segments in the two connecting parts are respectively connected with the inner side ends of the corresponding antenna radiation arms. The all-round nonmetal RFID tag antenna has the advantages of being good in universality and good in antenna using effect.

Description

Technical Field

[0001] The utility model belongs to the technical field of RFID tags, and in particular relates to an all-purpose non-metallic RFID tag antenna. Background Art

[0002] The clothing industry is one of the industries where RFID is most widely used, with various product forms, including self-adhesive labels (CN108091245 A, named "A logistics self-adhesive label with RFID function and its use method"), care labels (CN112598101 A, named "A washable electronic label with integrated RFID antenna and its manufacturing method"), hangtag labels (CN205721878 U, named "An RFID label for clothing hangtags"), clothing hard labels and other styles. Due to different label materials, the internal RFID tag antennas are different, resulting in a wide variety of antenna production styles. Manufacturers need to stock various types of tag antennas to cope with various product forms, which invisibly increases production costs and stocking risks. Utility Model Content

[0003] Design purpose: In order to avoid the shortcomings of the background technology, an all-round non-metallic RFID tag antenna is designed which is not only versatile but also has good antenna use effect.

[0004] Design plan: To achieve the above design objectives.

[0005] 1. An antenna radiating arm is respectively provided on both sides of the antenna impedance adjustment ring, and two oppositely arranged connecting parts are provided on the lower side of the antenna impedance adjustment ring, wherein the connecting part is composed of a first oblique line segment, a second oblique line segment, a third oblique line segment, a first horizontal line segment and a second horizontal line segment, a second oblique line segment is provided between the first oblique line segment and the third oblique line segment, and the first oblique line segment, the second oblique line segment and the third oblique line segment are arranged in parallel, one end of the first horizontal line segment is connected to the lower end of the first oblique line segment and the other end of the first horizontal line segment is connected to the lower end of the second oblique line segment, one end of the second horizontal line segment is connected to the upper end of the second oblique line segment and the other end of the second horizontal line segment is connected to the upper end of the third oblique line segment, the upper ends of the first oblique line segments in the two connecting parts are respectively connected to the lower end of the antenna impedance adjustment ring and the two first oblique line segments are distributed in an "eight" shape, and the design that the lower ends of the third oblique line segments in the two connecting parts are respectively connected to the inner ends of the corresponding antenna radiating arms is one of the technical features of the utility model. The purpose of such design is that: an antenna radiation arm is respectively provided on both sides of the antenna impedance adjustment ring and two oppositely arranged connecting parts are provided on the lower side of the antenna impedance adjustment ring, the connecting parts are composed of a first oblique line segment, a second oblique line segment, a third oblique line segment, a first horizontal line segment and a second horizontal line segment, a second oblique line segment is provided between the first oblique line segment and the third oblique line segment, and the first oblique line segment, the second oblique line segment and the third oblique line segment are arranged in parallel, one end of the first horizontal line segment is connected to the lower end of the first oblique line segment and the other end of the first horizontal line segment is connected to the lower end of the second oblique line segment, one end of the second horizontal line segment is connected to the second oblique line segment The upper end of the second horizontal line segment is connected and the other end of the second horizontal line segment is connected to the upper end of the third oblique line segment, the upper ends of the first oblique line segments in the two connecting parts are respectively connected to the lower end of the antenna impedance adjustment ring and the two first oblique line segments are distributed in an "eight" shape, and the lower ends of the third oblique line segments in the two connecting parts are respectively connected to the inner ends of the corresponding antenna radiation arms. The setting of the connecting part composed of a first oblique line segment, a second oblique line segment, a third oblique line segment, a first horizontal line segment and a second horizontal line segment makes the antenna suitable for use in RFID self-adhesive labels, laundry labels, tag labels, clothing hard labels and cable tie labels, and it has good versatility.

[0006] 2. The antenna impedance adjustment ring is square, and a notch is provided on the upper ring wall of the antenna impedance adjustment ring, and the notch is located in the middle of the ring wall. This is the second technical feature of the utility model. The purpose of this design is that the antenna impedance adjustment ring is square, and a notch is provided on the upper ring wall of the antenna impedance adjustment ring, and the notch is located in the middle of the ring wall. The antenna impedance adjustment ring with such a structure has a better impedance matching effect with the RFID chip.

[0007] 3. The antenna radiation arm is composed of multiple longitudinal line segments, multiple transverse line segments, a longitudinal line segment 1 and a transverse line segment 1, the multiple longitudinal line segments are arranged side by side, and two adjacent longitudinal line segments are connected to each other by a transverse line segment, a longitudinal line segment 1 is arranged on the outside of the multiple longitudinal line segments, and the longitudinal line segment 1 and the outermost longitudinal line segment are connected to each other by a transverse line segment, the width of the longitudinal line segment 1 is greater than the width of the longitudinal line segment, the lower end of the innermost longitudinal line segment is connected to one side end of the transverse line segment 1, and the other side end of the transverse line segment 1 is connected to the lower end of the third oblique line segment in the corresponding connecting portion, which is the third technical feature of the present utility model. The purpose of such design is that the antenna radiation arm is composed of multiple longitudinal line segments, multiple transverse line segments, a longitudinal line segment 1 and a transverse line segment 1, the multiple longitudinal line segments are arranged side by side, and two adjacent longitudinal line segments are connected to each other by a transverse line segment, a longitudinal line segment 1 is arranged on the outside of the multiple longitudinal line segments, and the longitudinal line segment 1 and the longitudinal line segment located on the outermost side are connected to each other by a transverse line segment, the width of the longitudinal line segment 1 is greater than the width of the longitudinal line segments, the lower end of the innermost longitudinal line segment is connected to one side end of the transverse line segment 1, and the other side end of the transverse line segment 1 is connected to the lower end of the third oblique line segment in the corresponding connecting part, which can not only improve the radiation frequency of the antenna, but also improve the gain of the antenna, thereby improving the use effect of the antenna.

[0008] 4. The design of a connecting section between the upper ends of the two first oblique line segments is the fourth technical feature of the present utility model. The purpose of this design is that the connecting section is provided between the upper ends of the two first oblique line segments, and the setting of the connecting section can improve the connection strength between the antenna impedance adjustment ring and the two connecting parts, thereby improving the service life of the antenna.

[0009] Technical solution: An all-purpose non-metallic RFID tag antenna, comprising an antenna impedance adjustment ring, two connecting parts and two antenna radiating arms, wherein an antenna radiating arm is respectively arranged on both sides of the antenna impedance adjustment ring and two connecting parts arranged oppositely are arranged on the lower side of the antenna impedance adjustment ring, wherein the connecting part is composed of a first oblique line segment, a second oblique line segment, a third oblique line segment, a first horizontal line segment and a second horizontal line segment, wherein a second oblique line segment is arranged between the first oblique line segment and the third oblique line segment, and the first oblique line segment, the second oblique line segment and the third horizontal line segment are arranged between the first oblique line segment and the third oblique line segment. The three oblique line segments are arranged in parallel, one end of the first horizontal line segment is connected to the lower end of the first oblique line segment and the other end of the first horizontal line segment is connected to the lower end of the second oblique line segment, one end of the second horizontal line segment is connected to the upper end of the second oblique line segment and the other end of the second horizontal line segment is connected to the upper end of the third oblique line segment, the upper ends of the first oblique line segments in the two connecting parts are respectively connected to the lower end of the antenna impedance adjustment ring and the two first oblique line segments are distributed in an "eight" shape, and the lower ends of the third oblique line segments in the two connecting parts are respectively connected to the inner ends of the corresponding antenna radiation arms.

[0010] Compared with the background technology, the utility model is a universal non-metallic RFID tag antenna which not only has good versatility but also has good antenna use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the main structure of an all-purpose non-metallic RFID tag antenna.

[0012] Figure 2 This is a design draft of an all-purpose non-metallic RFID tag antenna. DETAILED DESCRIPTION

[0013] Example 1: Refer to the attached Figure 1-Figure 2An all-purpose non-metallic RFID tag antenna comprises an antenna impedance adjustment ring 1, two connecting parts 2 and two antenna radiating arms 3. An antenna radiating arm 3 is respectively arranged on both sides of the antenna impedance adjustment ring 1 and two connecting parts 2 arranged opposite to each other are arranged on the lower side of the antenna impedance adjustment ring 1. The connecting part 2 is composed of a first oblique line segment 21, a second oblique line segment 22, a third oblique line segment 23, a first horizontal line segment 24 and a second horizontal line segment 25. A second oblique line segment 22 is arranged between the first oblique line segment 21 and the third oblique line segment 23 and the first oblique line segment 21, the second oblique line segment 22 and the third oblique line segment 23 are connected to each other. The line segments 23 are arranged in parallel, one end of the first horizontal line segment 24 is connected to the lower end of the first oblique line segment 21 and the other end of the first horizontal line segment 24 is connected to the lower end of the second oblique line segment 22, one end of the second horizontal line segment 25 is connected to the upper end of the second oblique line segment 22 and the other end of the second horizontal line segment 25 is connected to the upper end of the third oblique line segment 23, the upper ends of the first oblique line segments 21 in the two connecting parts 2 are respectively connected to the lower end of the antenna impedance adjustment ring 1 and the two first oblique line segments 21 are distributed in an "eight" shape, and the lower ends of the third oblique line segments 23 in the two connecting parts 2 are respectively connected to the inner ends of the corresponding antenna radiation arms 3.

[0014] Preferably, the antenna impedance adjustment ring 1 is square, and a notch 11 is provided on the upper ring wall of the antenna impedance adjustment ring 1 and the notch 11 is located in the middle of the ring wall.

[0015] Preferably, the antenna radiation arm 3 is composed of a plurality of longitudinal line segments 31, a plurality of transverse line segments 32, a longitudinal line segment 33 and a transverse line segment 34, the plurality of longitudinal line segments 31 are arranged side by side, and two adjacent longitudinal line segments 31 are connected to each other by a transverse line segment 32, a longitudinal line segment 33 is provided on the outer side of the plurality of longitudinal line segments 31, and the longitudinal line segment 33 and the outermost longitudinal line segment 31 are connected to each other by a transverse line segment 32, the width of the longitudinal line segment 33 is greater than the width of the longitudinal line segment 31, the lower end of the innermost longitudinal line segment 31 is connected to one side end of the transverse line segment 34, and the other side end of the transverse line segment 34 is connected to the lower end of the third oblique line segment 23 in the corresponding connecting portion 2.

[0016] Preferably, a connecting section 26 is provided between the upper ends of the two first oblique line sections 21 .

[0017] Preferably, the length of the antenna radiation arm 3 is 15 mm and the width is 15 mm, the length of the antenna impedance adjustment ring 1 is 11 mm and the width is 9 mm, the inner hole length of the antenna impedance adjustment ring 1 is 9.5 mm and the width is 7.5 mm, the width of the longitudinal line segment 31 is 0.6 mm, and the width of the longitudinal line segment 33 is 1.1 mm.

[0018] It should be understood that although the above embodiments provide a relatively detailed textual description of the design concept of the present utility model, these textual descriptions are only simple textual descriptions of the design concept of the present utility model, rather than limitations on the design concept of the present utility model. Any combination, addition or modification that does not exceed the design concept of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. An all-purpose non-metallic RFID tag antenna, comprising an antenna impedance adjustment ring (1), two connecting parts (2) and two antenna radiation arms (3), wherein: An antenna radiating arm (3) is respectively provided on both sides of the antenna impedance adjustment ring (1), and two connecting portions (2) arranged opposite to each other are provided on the lower side of the antenna impedance adjustment ring (1), wherein the connecting portion (2) is composed of a first oblique line segment (21), a second oblique line segment (22), a third oblique line segment (23), a first horizontal line segment (24) and a second horizontal line segment (25), wherein the second oblique line segment (22) is provided between the first oblique line segment (21) and the third oblique line segment (23), and the first oblique line segment (21), the second oblique line segment (22) and the third oblique line segment (23) are arranged in parallel, and a first horizontal line segment (24) is provided at the bottom of the first oblique line segment (24). The first end of the first horizontal line segment (24) is connected to the lower end of the first oblique line segment (21), and the other end of the first horizontal line segment (24) is connected to the lower end of the second oblique line segment (22); one end of the second horizontal line segment (25) is connected to the upper end of the second oblique line segment (22), and the other end of the second horizontal line segment (25) is connected to the upper end of the third oblique line segment (23); the upper ends of the first oblique line segments (21) in the two connecting parts (2) are respectively connected to the lower end of the antenna impedance adjustment ring (1), and the two first oblique line segments (21) are distributed in an "eight" shape; the lower ends of the third oblique line segments (23) in the two connecting parts (2) are respectively connected to the inner ends of the corresponding antenna radiation arms (3).

2. The all-purpose non-metallic RFID tag antenna according to claim 1, characterized in that: The antenna impedance adjustment ring (1) is square in shape, and a notch (11) is provided on the upper ring wall of the antenna impedance adjustment ring (1), and the notch (11) is located in the middle of the ring wall.

3. The all-purpose non-metallic RFID tag antenna according to claim 1, characterized in that: The antenna radiation arm (3) is composed of a plurality of longitudinal line segments (31), a plurality of transverse line segments (32), a longitudinal line segment 1 (33) and a transverse line segment 1 (34); the plurality of longitudinal line segments (31) are arranged side by side, and two adjacent longitudinal line segments (31) are connected to each other via a transverse line segment (32); a longitudinal line segment 1 (33) is arranged outside the plurality of longitudinal line segments (31), and the longitudinal line segment 1 (33) and the longitudinal line segment (31) located at the outermost side are connected to each other via a transverse line segment (32); the width of the longitudinal line segment 1 (33) is greater than the width of the longitudinal line segments (31); the lower end of the longitudinal line segment (31) located at the innermost side is connected to one end of the transverse line segment 1 (34), and the other end of the transverse line segment 1 (34) is connected to the lower end of the third oblique line segment (23) in the corresponding connecting portion (2).

4. The all-purpose non-metallic RFID tag antenna according to claim 1, characterized in that: A connecting section (26) is provided between the upper ends of the two first oblique line sections (21).

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