Label antenna structure suitable for the curved surfaces of liquid containers

Abstract

A tag antenna structure suitable for curved surfaces of liquid bottles includes a deformable loop surrounding a first slot, the deformable loop including a loop notch, a first electrical connection end and a second electrical connection end, the first electrical connection end and the second electrical connection end being spaced apart by the loop notch, a single-arm radiating plate, one arm of the single-arm radiating plate being connected to the deformable loop, a second slot, the unconnected portion between the deformable loop and the single-arm radiating plate being spaced apart by the second slot, one end of the second slot having an open circuit structure, and an RFID chip electrically connected to the first electrical connection end and the second electrical connection end.

Claims

1. A tag antenna structure suitable for curved surfaces of liquid bottles, comprising: a deformable loop surrounding a first slot, the deformable loop including a loop notch, a first electrical connection end and a second electrical connection end, the first electrical connection end and the second electrical connection end being spaced apart from the loop notch; a single-arm radiating plate, one arm of the single-arm radiating plate being connected to the deformable loop; a second slot, the unconnected portion between the deformable loop and the single-arm radiating plate being spaced apart from the second slot, one end of the second slot having an opening The road structure includes a second slot comprising a front section and a rear section. The front section has a length of 0.5-25 mm and a width of 0.5-7 mm, and the rear section has a length of 5-30 mm and a width of 0.5-20 mm. An RFID chip is electrically connected to the first electrical connection terminal and the second electrical connection terminal. The deformable loop forms an impedance match with the first slot, and the current passes through the first slot to adjust the inductive reactance of the tag antenna suitable for the curved surface of liquid bottles and the capacitive reactance of the RFID chip.

2. The tag antenna structure applicable to the curved surface of a liquid bottle as described in claim 1, wherein the second slot includes an L-shaped slot and an inverted U-shaped slot.

3. A tag antenna structure suitable for curved surfaces of liquid bottles, comprising: a deformable loop surrounding a first slot, the deformable loop including a loop notch, a first electrical connection end and a second electrical connection end, the first electrical connection end and the second electrical connection end being spaced apart by the loop notch; a single-arm radiating plate, one arm of the single-arm radiating plate being connected to the deformable loop; a second slot, the unconnected portion between the deformable loop and the single-arm radiating plate being spaced apart by the second slot, one end of the second slot having an open circuit structure; an RFID chip electrically connected to the first electrical connection end and the second electrical connection end; a third slot, the single-arm radiating plate being further spaced apart by the third slot, the third slot being a polygonal slot; the deformable loop forming an impedance match with the first slot and the third slot, current passing through the first slot and the third slot adjusting the inductive reactance of the tag antenna suitable for curved surfaces of liquid bottles and the capacitive reactance of the RFID chip.

4. The tag antenna structure applicable to the curved surface of a liquid bottle as described in claim 3, wherein the single-arm radiating plate is composed of a plurality of radiating plates of different sizes.

5. The tag antenna structure applicable to the curved surface of a liquid bottle as described in claim 4, wherein the radiating plates include a first radiating plate, a second radiating plate, a third radiating plate and a fourth radiating plate.

6. The tag antenna structure applicable to the curved surface of a liquid bottle as described in claim 3, wherein the second slot connects to a rectangular slot, and the second slot and the rectangular slot form a T-shaped slot.

7. The tag antenna structure applicable to the curved surface of liquid bottles and cans as described in claim 3, wherein the tag antenna structure is 30-90 mm long and 5-35 mm wide.

8. The tag antenna structure applicable to the curved surface of a liquid bottle as described in claim 3, wherein the second slot comprises a front section and a rear section, the front section having dimensions of 0.5-25 mm in length and 0.5-7 mm in width, and the rear section having dimensions of 5-30 mm in length and 0.5-20 mm in width.

9. The tag antenna structure applicable to the curved surface of a liquid bottle as described in claim 3, wherein the dimensions of the third slot are 0-30 mm in length and 0-25 mm in width.

Images