CN203553342U - High-orientation RFID (Radio Frequency Identification Device) tag antenna capable of being integrated in package express list - Google Patents
High-orientation RFID (Radio Frequency Identification Device) tag antenna capable of being integrated in package express list Download PDFInfo
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- CN203553342U CN203553342U CN201320562161.0U CN201320562161U CN203553342U CN 203553342 U CN203553342 U CN 203553342U CN 201320562161 U CN201320562161 U CN 201320562161U CN 203553342 U CN203553342 U CN 203553342U
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- tag antenna
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Abstract
The utility model relates to a high-orientation RFID (Radio Frequency Identification Device) tag antenna capable of being integrated in a package express list. The high-orientation RFID tag antenna provided by the utility model comprises a PET (Positron Emission Tomography) substrate, a metal moxon structure and a coupling feed ring. The metal moxon structure and the coupling feed ring are arranged on the PET substrate, wherein the metal moxon structure comprises a main vibrator and a reflector, which are of bent structures, a set gap is arranged between the main vibrator and the reflector, the two ends of the main vibrator and the reflector are extended towards the middle part of the RFID tag antenna, the coupling feed ring is located on a position close to the main vibrator on the middle part of the metal moxon structure, and a chip ImpinjMonza4 is loaded on the coupling feed ring. In the high-orientation RFID tag antenna provided by the utility model, the substrate is made from of a PET material, which is one of the most commonly used substrate materials in tag processing. The other structures are processed by aluminum etching processing, so that the cost is low and the processing is convenient.
Description
Technical field
The utility model belongs to antenna technology and wireless communication field, relates to a kind of high directed RFID label antenna.
Background technology
Radio-frequency (RF) identification is RFID(Radio Frequency Identification) technology, claim again electronic tag, radio frequency identification, that one can be identified specific objective and be read and write related data by radio signals, and without the communication technology of setting up machinery or optics between recognition system and specific objective and contacting.Conventional passive RFID has low frequency (125k ~ 134.2K), high frequency (13.56Mhz), hyperfrequency (860-960MHz).
RFID label antenna is as the important component part of rfid system, and its performance will affect the effect and quality of whole rfid system greatly.The principal element that affects RFID antenna performance comprises the size of antenna, working frequency range, impedance and gain etc.
Existing RFID label antenna great majority are dipole form omnidirectional antenna, and its reading distance is roughly the same in it uses plane.But omnidirectional antenna inapplicable in some applications.Such as manually searching in the application of express delivery parcel, courier can read the RFID label substance of pasting superscribing by handhold RFID reader and search required parcel.Under this application scenario, the label antenna of omnidirectional can cause the position of manually searching to be failed to understand.
Summary of the invention
The utility model, for the deficiencies in the prior art, provides a kind of high orientation can be integrated in the RFID label antenna in express delivery list.
The technical solution adopted in the utility model is:
The utility model comprises PET substrate, metal Mo Kesen structure and coupling electric feedback ring, in PET substrate, be provided with metal Mo Kesen structure and coupling electric feedback ring, wherein metal Mo Kesen structure is for comprising main element and reflector, all adopt bending structure, between main element and reflector, exist and set gap, all extend in the middle of RFID label antenna at the two ends of main element and reflector, coupling electric feedback ring near the position of main element, loads chip I mpinj Monza 4 in the middle of metal Mo Kesen structure on described coupling electric feedback ring.
Furtherly, coupling electric feedback ring is rectangle Fang Huan.
Furtherly, the overall dimension of this RFID label antenna is 80mm × 60mm × 0.05mm.
The beneficial effect the utlity model has is:
RFID antenna size of the present utility model is only 80mm × 60mm, can be integrated in express delivery list.Antenna has high front and back ratio, more than the front and back of whole FCC band antenna ratio all reaches 15dB.The half-power angle of antenna can reach 150 °, is far longer than common dipole label antenna.This antenna has good adjustable characteristic simultaneously, can easily realize the coupling of different RF ID chip by the adjusting electric feedback ring that is coupled.
Accompanying drawing explanation
Fig. 1 is the overall structure vertical view of antenna.
Fig. 2 is the input impedance test result figure of antenna.
Fig. 3 is the reading distance resolution chart of label.
Fig. 4 manually searches the application schematic diagram wrapping up in shelf.
Fig. 5 is the application schematic diagram in intelligent commodity shelf/bookshelf.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described:
As shown in Figure 1, in the utility model, RFID antenna is comprised of PET substrate 1-1, Mo Kesen structure (main element 1-2 and reflector 1-3) and coupling electric feedback ring 1-4.On electric feedback ring, load chip I mpinj Monza4 1-5.The overall dimension of antenna is 80mm × 60mm × 0.05mm, and what substrate 1-1 adopted is the most frequently used PET material in label processing, and its dielectric constant is 3.2.The utility model Mo Kesen structure is different from traditional structure, adopts bending linearize structure with size reduction.Wherein, the live width of folding line, bending width and distance between centers of tracks all can be for the impedance adjustment of antenna.And the coupling electric feedback ring 1-4 of main element near-end can regulate respectively by the length and width of the spacing of adjustment ring and main element and ring impedance and the reactance of antenna, in feed, realized the independent regulation of antenna impedance and reactance.
As shown in Figure 2, measured impedance is 10+145.6j ohm when 915MHz in the input impedance of this antenna measurement, reaches conjugate impedance match with the impedance 11+143j of chip Monza4.
The test of label farthest reading distance as shown in Figure 3, in the time of in FCC frequency range, forward reading distance is all greater than 16.5m, and backward read distance is all less than 5.5m.
The schematic diagram that label wraps up for the express delivery of manually searching on shelf as shown in Figure 4.Label sizes only has 80mm × 60mm, much smaller than the size of express delivery list, can be integrated in express delivery list, pastes the surface at parcel.Courier can hold RFID reader 4-1 reading and paste the label 4-4 content on express delivery parcel 4-3 on shelf 4-2, by not contacting the mode of parcel, just can find the parcel needing, greatly increase search efficiency, avoided the infringement to parcel in traditional search procedure.
Fig. 5 is the application schematic diagram of RFID label in intelligent commodity shelf/bookshelf.Parcel/books 5-3 in shelf/bookshelf 5-1, pastes label 5-4 at parcel/books title page.Information in label is sent to reader terminal 5-2, is further transferred in server, realizes the automation of express delivery parcel/taking care of books with intelligent.
The advantage of RFID label antenna of the present utility model comprises:
(1) cost is low and size is relatively little.Antenna only adopts PET and aluminium bi-material, is most basic label rapidoprint.And the size of whole antenna only has 80mm × 60mm × 0.05mm, size significantly reduces compared with other directional antennas.
(2) work of FCC frequency range is good.As shown in Figure 3, antenna can normally be operated under FCC frequency range, and in its front and back of this channel, than being greater than 15dB, one-way is very good.
(3) adjustability is strong.When changing RFID chip, as long as regulate the position dimension of coupling electric feedback ring structure just can easily realize impedance matching.
(4) half-power angle is large.While being applied to intelligent commodity shelf/bookshelf system, the half-power angle of label is 150 degree, much larger than 70 degree of common dipole label, makes the Active Area of reader wider.
The utility model has stated that a kind of high orientation can be integrated in the RFID label antenna in express delivery list, use coupling electric feedback ring structure as impedance adjustment unit, make RFID antenna be easy to regulate input impedance, folding line structure has significantly reduced the size of label, Mo Kesen structure has realized the high directionality of label simultaneously, is applicable to artificial contactless articles seeking.What in the utility model, antenna substrate adopted is PET material, is one of base material the most frequently used in label processing.And other structures are to be all made by aluminium etching and processing, with low cost and easy to process.In sum, the RFID label antenna of designing has not only been realized high orientation, but also it is little to have size, and reading distance is far away, simple in structure, and therefore low cost and other advantages has wide using value and market potential.
Claims (3)
1. a high orientation can be integrated in the RFID label antenna in parcel express delivery list, comprise PET substrate, metal Mo Kesen structure and coupling electric feedback ring, it is characterized in that: in PET substrate, be provided with metal Mo Kesen structure and coupling electric feedback ring, wherein metal Mo Kesen structure is for comprising main element and reflector, all adopt bending structure, between main element and reflector, exist and set gap, all extend in the middle of RFID label antenna at the two ends of main element and reflector, the position of coupling electric feedback ring close main element in the middle of metal Mo Kesen structure, on described coupling electric feedback ring, load chip I mpinj Monza 4.
2. RFID label antenna according to claim 1, is characterized in that: described coupling electric feedback ring is rectangle Fang Huan.
3. RFID label antenna according to claim 1, is characterized in that: the overall dimension of this RFID label antenna is 80mm × 60mm × 0.05mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320562161.0U CN203553342U (en) | 2013-09-10 | 2013-09-10 | High-orientation RFID (Radio Frequency Identification Device) tag antenna capable of being integrated in package express list |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320562161.0U CN203553342U (en) | 2013-09-10 | 2013-09-10 | High-orientation RFID (Radio Frequency Identification Device) tag antenna capable of being integrated in package express list |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203553342U true CN203553342U (en) | 2014-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320562161.0U Expired - Fee Related CN203553342U (en) | 2013-09-10 | 2013-09-10 | High-orientation RFID (Radio Frequency Identification Device) tag antenna capable of being integrated in package express list |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203553342U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103633429A (en) * | 2013-09-10 | 2014-03-12 | 刘琦 | High-orientation RFID tag antenna capable of being integrated in parcel express bill |
-
2013
- 2013-09-10 CN CN201320562161.0U patent/CN203553342U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103633429A (en) * | 2013-09-10 | 2014-03-12 | 刘琦 | High-orientation RFID tag antenna capable of being integrated in parcel express bill |
| CN103633429B (en) * | 2013-09-10 | 2016-05-11 | 刘琦 | High orientation can be integrated in the RFID label antenna in parcel express delivery list |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20160910 |