CN203800172U - Novel broadband label antenna - Google Patents
Novel broadband label antenna Download PDFInfo
- Publication number
- CN203800172U CN203800172U CN201420183999.3U CN201420183999U CN203800172U CN 203800172 U CN203800172 U CN 203800172U CN 201420183999 U CN201420183999 U CN 201420183999U CN 203800172 U CN203800172 U CN 203800172U
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- China
- Prior art keywords
- antenna
- label antenna
- label
- chip
- feedback ring
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model discloses a novel broadband label antenna. The novel broadband label antenna comprises a substrate (1) and an antenna printed on the substrate (1). The antenna comprises a radiator (2) and a feed ring (3). The radiator (2) is in coupling connection with the feed ring (3) through an inductor (5). The radiator (2) is composed of a bent dipoles A (21) and a bend dipole B (22) which are connected through a connecting piece (23). A chip (4) is installed at the opening of the feed ring (3). According to the utility model, the chip is installed at the opening of the feed ring, and the feed ring is in coupling connection with the radiator through the inductor, so that broadband is realized, and the problem of narrowed frequency band of a label antenna, caused by direct connection between the label antenna and a label chip is also overcome.
Description
Technical field
The utility model relates to a kind of label antenna, particularly relates to a kind of novel wide-band label antenna of compact conformation.
Background technology
Radio-frequency (RF) identification is a kind of noncontact automatic identification technology that uses radio-frequency technique, have that transmission rate is fast, Anti-knocking, read in enormous quantities, the advantage such as motion process reads, therefore, REID has great application potential in logistics and supply chain management, production planning and control, a false proof and field such as security control, traffic administration and control.The basic functional principle of radio-frequency recognition system is: label enters after read write line transmitting radiofrequency field, using the induced current of antenna acquisition power supply as chip after booster circuit, the induced current of information is become to digital signal by radio-frequency (RF) front-end circuit sends into logic control circuit and processes simultaneously, need the information of replying from tag ram, to send, through logic control circuit, send radio-frequency (RF) front-end circuit back to, finally by antenna, beam back read write line, from above-mentioned operation principle, can find out, the label antenna that radio frequency sets label is one of key technology affecting radio-frequency technique performance.Label antenna is the transponder antenna of electronic tag, is a kind of communication induction antenna.The electronic tag transponder general and chip has formed.
Existing label antenna and label chip adopt direct connected mode, a kind of improved electronic label antenna (applying date: 2012.02.29 of Ru Huo People's Republic of China (PRC) china national practical new-type patent, the day for announcing, 2012.10.03), its technical scheme is: as shown in Figure 1, antenna global shape is approximate square, electronic label chip is provided with four T-shaped structure main radiator antennas that are equal to up and down, on the antenna of the interlude of four T-shaped structure main radiator, is provided with diamond-type metal electric feedback ring.
Adopt the direct connected mode of above-mentioned label antenna and label chip, require the matched impedance precision of label antenna high, and to by the impedance of target, be mated with quilt, thereby realize high power transmission, but, the impedance of label antenna is a composite impedance, and its coupling is difficult to realize, even if realize, also will cause the frequency band of label antenna to narrow down.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of bandwidth is provided, and the novel wide-band label antenna of compact conformation.
The purpose of this utility model is achieved through the following technical solutions: a kind of novel wide-band label antenna, it comprises substrate and is printed on the antenna on substrate, described antenna comprises radiant body and electric feedback ring, between radiant body and electric feedback ring, by inductance coupling high, connect, radiant body is comprised of two bending dipole A that are connected by connector and bending dipole B, and chip is arranged on the opening part of electric feedback ring.
Described bending dipole A is different with the width of bending dipole B.
Described electric feedback ring is rectangle electric feedback ring.
Compared with prior art, the utlity model has following beneficial effect:
1) chip is arranged on the opening part of electric feedback ring, and by inductance coupling high, is connected between electric feedback ring and radiant body, has both realized broadband, has also overcome and has directly been connected the problem that causes the frequency band of label antenna to narrow down because of label antenna and label chip;
2) length of two bending dipoles is different, has realized the broadband of antenna, meanwhile, has also shortened the entire length of antenna, makes label antenna more compact; And simple in structure.
Accompanying drawing explanation
Fig. 1 is the label antenna of prior art;
Fig. 2 is tag antenna structure schematic diagram of the present utility model;
In figure, 1-substrate, 2-radiant body, 21-bending dipole A, 22-bending dipole B, 23-connector, 3-electric feedback ring, 4-chip, 5-inductance.
Embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is described in further detail, but protection range of the present utility model is not limited to the following stated.
As shown in Figure 2, a kind of novel wide-band label antenna, it comprises substrate 1 and is printed on the antenna on substrate 1, described antenna comprises radiant body 2 and electric feedback ring 3, between radiant body 2 and electric feedback ring 3, by inductance 5, be of coupled connections, radiant body 2 is comprised of two bending dipole A21 that are connected by connector 23 and bending dipole B22, and chip 4 is arranged on the opening part of electric feedback ring 3.
Preferably, described bending dipole A21 is different with the width of bending dipole B22.
Preferably, described electric feedback ring 3 is rectangle electric feedback ring.
Claims (3)
1. a novel wide-band label antenna, it is characterized in that: it comprises substrate (1) and is printed on the antenna on substrate (1), described antenna comprises radiant body (2) and electric feedback ring (3), between radiant body (2) and electric feedback ring (3), by inductance (5), be of coupled connections, radiant body (2) is by two bending dipole A(21 that are connected by connector (23)) and bending dipole B(22) form, chip (4) is arranged on the opening part of electric feedback ring (3).
2. a kind of novel wide-band label antenna according to claim 1, is characterized in that: described bending dipole A(21) with bending dipole B(22) width different.
3. a kind of novel wide-band label antenna according to claim 1, is characterized in that: described electric feedback ring (3) is rectangle electric feedback ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420183999.3U CN203800172U (en) | 2014-04-16 | 2014-04-16 | Novel broadband label antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420183999.3U CN203800172U (en) | 2014-04-16 | 2014-04-16 | Novel broadband label antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203800172U true CN203800172U (en) | 2014-08-27 |
Family
ID=51382364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420183999.3U Expired - Fee Related CN203800172U (en) | 2014-04-16 | 2014-04-16 | Novel broadband label antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203800172U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110994155A (en) * | 2019-12-18 | 2020-04-10 | 成都华日通讯技术有限公司 | Ultra-wideband loading antenna |
-
2014
- 2014-04-16 CN CN201420183999.3U patent/CN203800172U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110994155A (en) * | 2019-12-18 | 2020-04-10 | 成都华日通讯技术有限公司 | Ultra-wideband loading antenna |
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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: 20140827 Termination date: 20170416 |