Tag reading device

Abstract

A tag reading device includes a device structure, a first reading antenna module, and a second reading antenna module. The device structure includes a first sidewall, a second sidewall, a third sidewall, and a base. The first, second, and third sidewalls are disposed on the base. One side of the second sidewall is connected to the first sidewall, and the other side of the second sidewall is connected to the third sidewall. The first and third sidewalls are opposite to each other. The first reading antenna module extends from the first sidewall, the base, and the third sidewall. The second reading antenna module extends from the base and the second sidewall.

Claims

1. A tag reading device, comprising: A device structure includes a first sidewall, a second sidewall, a third sidewall, and a base, wherein the first sidewall, the second sidewall, and the third sidewall are disposed on the base, one side of the second sidewall is connected to the first sidewall, and the other side of the second sidewall is connected to the third sidewall, and the first sidewall and the third sidewall are opposite to each other; a first readout antenna module extends from the first sidewall, the base, and the third sidewall, wherein the first readout antenna module includes a first serpentine transmission line; and a second readout antenna module extends from the base and the second sidewall, wherein the second readout antenna module includes a second serpentine transmission line.

2. The tag reading device as described in claim 1, wherein, The first readout antenna module includes a first radiator located on the base.

3. The tag reading device as described in claim 2, wherein, The second readout antenna module includes a second radiator located on the base, and the second radiator does not overlap with the first radiator.

4. The tag reading device as described in claim 3, wherein, The first radiator is disposed on the first serpentine transmission line, and the second radiator is disposed on the second serpentine transmission line.

5. The tag reading device as described in claim 4, wherein, The first readout antenna module includes a third radiator located on the first sidewall and disposed on the first serpentine transmission line.

6. The tag reading device as described in claim 5, wherein, The second readout antenna module includes a fourth radiator located on the second sidewall and above the second serpentine transmission line. In a vertical direction, the height of the third radiator is different from the height of the fourth radiator.

7. The tag reading device as described in claim 6, wherein, The first readout antenna module includes a fifth radiator located on the third sidewall and above the first serpentine transmission line. In the vertical direction, the height of the fifth radiator is different from the height of the third radiator and also different from the height of the fourth radiator.

8. The tag reading device as described in claim 7, wherein, The second readout antenna module includes a sixth radiator located on the base and disposed on the second serpentine transmission line, with the first radiator located between the second radiator and the sixth radiator.

9. The tag reading device as described in claim 8, wherein, The first radiator is parallel to the second radiator, and the second radiator is not parallel to the sixth radiator.

10. The tag reading device as described in claim 3, wherein, The first readout antenna module and the second readout antenna module are adapted to transmit a wireless signal having a wavelength, and the first radiator and the second radiator have a gap greater than or equal to half of the wavelength.

11. The tag reading device as described in any one of claims 1 to 10, wherein, The device structure has a notch between part of the first side wall and part of the third side wall, with the second side wall facing the notch.

12. The tag reading device as claimed in claim 11 further includes a first cable, a second cable, a first connector, and a second connector, one end of the first cable being connected to the first reading antenna module, the other end of the first cable being connected to the first connector, one end of the second cable being connected to the second reading antenna module, the other end of the second cable being connected to the second connector, and the first connector and the second connector being disposed on the base.

13. The tag reading device as described in claim 12, wherein, The first connector and the second connector are adjacent to the notch, the first cable extends from the third sidewall to the base, and the second cable extends from the base.

14. The tag reading device as described in any one of claims 1 to 10, wherein, The device structure includes a metal cladding material disposed on the first side wall, the second side wall, the third side wall, and the base.

15. The tag reading device as described in claim 14, further comprising an intermediate material, wherein, The base includes a groove in which at least a portion of the second read antenna module extends, the first read antenna module partially overlaps the second read antenna module, and an intermediate material is disposed between the first read antenna module and the second read antenna module.

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