A kind of separated antennae ultrahigh frequency electronic tag and reflecting antenna unit
Technical field
The utility model belongs to the electronic label technology field, a kind of improved reflecting antenna unit that particularly adopts in a kind of separated antennae ultrahigh frequency electronic tag and this electronic tag.
Background technology
Progressively be used widely in the fields such as electronic tag is in circulation of commodities, and is false proof, but along with the continuous expansion of using, cost has progressively become its bottleneck that further develops.
At present, size is little, the electronic tag of thin thickness adopts the small size radiating antenna and the separated antennae of reflecting antenna combination is a kind of feasible mode, and its reflecting antenna adopts copper coin, aluminium sheet etch process to make usually, cost is high, the waste material has pollution to environment, and it is desirable that result of use is owed.
Summary of the invention
The purpose of this utility model provides a kind of separated antennae ultrahigh frequency electronic tag, and a kind of improved reflecting antenna unit that adopts in this electronic tag, and use die-cutting process to make the electronic tag of this reflecting antenna unit, thin thickness, expand the application of RFID electronic tag in product.
The utility model separated antennae ultrahigh frequency electronic tag comprises:
The little label of one RFID has radiating antenna unit and RF IC chip; And
The reflecting antenna unit, it is comprised of a substrate and the reflecting antenna that is arranged at this substrate one side, this reflecting antenna comprises folded dipole, and two openends of this folded dipole connect respectively a broken line section, and a pair of coupling broken line part is extended at the middle part of the top rail part of this folded dipole downwards; The little label of described RFID is pasted on this above a pair of coupling broken line part, carries out the transmission of signal with coupling feed way with reflecting antenna.
Wherein, described coupling broken line partly comprises vertical section, the horizontal segment that extends internally, and inwardly, to the tilting section of downward-extension.Described broken line section comprises wide vertical section that is positioned at the folded dipole outer end, the vertical linkage section of the openend of folded dipole, and the horizontal segment that connects this wide vertical section and this vertical linkage section.
Described reflecting antenna is the aluminium foil reflecting antenna, and thickness is 0.01-0.15mm; Described substrate is plastic sheeting or copper cardboard, and thickness is 0.03-0.5mm.
The radiating antenna unit of the little label of described RFID comprises substrate and is printed in this on-chip " recessed " font radiating antenna; Can also cover the layer of transparent plastic sheeting at this radiating antenna.Substrate adopts plastic sheeting, presspaper etc., and thickness is 0.03-0.5mm; The thickness of transparent plastic film can be 0.03-0.5mm.
Combination is pasted in the little label of described RFID and described reflecting antenna unit, and the depressed part of " recessed " font radiating antenna of the little label of described RFID is towards the reverse direction of the openend of the openend of described folded dipole or described folded dipole.
A kind of reflecting antenna unit that is used for above-mentioned separated antennae ultrahigh frequency electronic tag, it is characterized in that: this reflecting antenna unit is comprised of a substrate and the reflecting antenna that is arranged at this substrate one side, this reflecting antenna comprises folded dipole, two openends of this folded dipole connect respectively a broken line section, a pair of coupling broken line part is extended at the middle part of the top rail part of this folded dipole downwards, and this a pair of coupling broken line is partly located for the little label of attaching rfid.
Wherein, described broken line section comprises wide vertical section that is positioned at the folded dipole outer end, the vertical linkage section of the openend of folded dipole, and the horizontal segment that connects this wide vertical section and this vertical linkage section; Described coupling broken line partly comprises vertical section, the horizontal segment that extends internally, and inwardly, to the tilting section of downward-extension.
The utility model electronic tag adopts has the little label of RFID of radiating antenna and the separated antennae technology of the stacked combination in reflecting antenna unit, the little label of RFID is pasted on above a pair of coupling broken line part of this reflecting antenna unit, carries out the transmission of signal with coupling feed way with reflecting antenna.It is cheap for manufacturing cost, and material easily reclaims, and meets environmental requirement.
The new type reflection antenna that its reflecting antenna unit adopts aluminium foil or Copper Foil to be die-cut to, this reflecting antenna is connected two broken line sections by folded dipole, with folded dipole and a pair of coupling broken line partly forms, and actual the use proves that coupling effect was better than like product when this coupling broken line part was fitted with the radiating antenna in the little label of RFID.
Description of drawings
Fig. 1 is the utility model embodiment 1 Electronic Tag Structure synoptic diagram;
Fig. 2 is the reflecting antenna cellular construction synoptic diagram of Fig. 1 embodiment 1;
Fig. 3 is the RFID small tenon label decomposing schematic representation of Fig. 1 embodiment 1;
Fig. 4 is the little label of Fig. 3 RFID and Fig. 2 reflecting antenna unit bonding state synoptic diagram;
Fig. 5 is the little label of the RFID of the utility model embodiment 2 and reflecting antenna unit bonding state synoptic diagram.
Embodiment
Below in conjunction with drawings and Examples the utility model is described further.
With reference to Fig. 1-4, embodiment 1 separated antennae ultrahigh frequency electronic tag mainly comprises the little label of RFID and reflecting antenna unit etc., and the little label of RFID has radiating antenna unit and RF IC chip 34.
The radiating antenna unit of the little label of RFID contains substrate 32, is printed in " recessed " font radiating antenna 33(such as printed silver antenna on this substrate 32), and be covered in transparent plastic film 31 on this radiating antenna 33; RF IC chip 34 is connected to a pair of splicing ear of " recessed " font radiating antenna 33 depressed part middle opening ends.For reducing cost, substrate 32 adopts plastic sheeting, copper cardboard etc., and thickness is 0.03-0.5mm; The thickness of transparent plastic film 31 is 0.03-0.5mm.
The reflecting antenna unit is comprised of a substrate 51 and the reflecting antenna that is arranged at these substrate 51 one sides, this reflecting antenna comprises folded dipole 52, two openends of this folded dipole 52 connect respectively broken line section 53,56, and a pair of coupling broken line part 54,55 is extended at the middle part of the top rail part of this folded dipole downwards.In this reflecting antenna, coupling broken line part 54 comprises vertical section, the horizontal segment that extends internally, and inwardly, to the tilting section of downward-extension; Coupling broken line part 55 is identical with coupling broken line part 54 structures, and both are symmetrical arranged.Broken line section 53 comprises wide vertical section that is positioned at folded dipole 52 outer ends, the vertical linkage section of the openend of folded dipole 52, and the horizontal segment that connects this wide vertical section and this vertical linkage section.Broken line section 56 is identical with broken line section 534 structures, and both are symmetrical arranged.
Such as Fig. 1,4, the substrate 51 of reflecting antenna unit adopts the copper cardboard, and this reflecting antenna 52-56 is the aluminium foil reflecting antenna of cross cutting, and this aluminium foil reflecting antenna sticks on this copper cardboard upper surface by adhesive sticker 50.The little label of RFID is pasted on above a pair of coupling broken line part of this of this reflecting antenna unit, the depressed part of " recessed " font radiating antenna 33 of the little label of RFID carries out the transmission of signal towards the reverse direction of folded dipole 52 openends with reflecting antenna with coupling feed way.The combination of the little label of above-mentioned RFID and reflecting antenna unit adopts traditional adhesive sticker 4 sealing, can establish release liners 2(at top layer and see Fig. 1).
Above-mentioned reflecting antenna adopts the aluminium foil reflecting antenna of shape by die-cutting, also can adopt the Copper Foil reflecting antenna of shape by die-cutting, and thickness is 0.01-0.15mm; Described substrate is plastic sheeting or paper, and thickness is 0.03-0.5mm.
Embodiment 2 separated antennae ultrahigh frequency electronic tags are identical with embodiment 1 structure, difference illustrates with Fig. 5, the installation direction of the little label of its RFID is opposite, the depressed part of " recessed " font radiating antenna 33 of the little label of RFID carries out the transmission of signal towards the openend of folded dipole 52 with reflecting antenna among Fig. 5 with coupling feed way.
Above embodiment can not and describe in detail and limit the utility model with this embodiment only for ease of explanation the utility model and establishing, and generally according to listed claim institute various shift design for it, all should be included in the application's the claim.