CN203444508U - RFID tag with folded dipole antenna - Google Patents
RFID tag with folded dipole antenna Download PDFInfo
- Publication number
- CN203444508U CN203444508U CN201320372803.0U CN201320372803U CN203444508U CN 203444508 U CN203444508 U CN 203444508U CN 201320372803 U CN201320372803 U CN 201320372803U CN 203444508 U CN203444508 U CN 203444508U
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- China
- Prior art keywords
- dipole antenna
- folded dipole
- chip
- impedance
- matching device
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses an RFID tag with a folded dipole antenna, and the RFID tag comprises a G2 chip, the folded dipole antenna, a dielectric substrate, and bonding pads. The G2 chip is installed at the center of the dielectric substrate. The number of the bonding pads is two. Two ends of the folded dipole antenna are respectively connected with two ends of the G2 chip through the two bonding pads. The folded dipole antenna consists of a signal gain device and an impedance matching device. The signal gain device is triangular, and the impedance matching device is rectangular. The signal gain device is connected with the signal input end of the impedance matching device. The signal output end of the impedance matching device is the signal output end of the folded dipole antenna. The signal gain device of the folded dipole antenna of the RFID tag is wider in frequency band and better in directive gain. The RFID gain is simple in mechanical structure and is convenient to install. The impedance matching device of the folded dipole antenna is good in impedance adjusting space, and can carry out matching according to the changes of the circuit of the chip.
Description
Technical field
The utility model relates to a kind of RFID label, relates in particular to a kind of RFID label with folded dipole antenna.
Background technology
In prior art, Antenna Design is all generally to mate with the impedance phase of 50 Ω or 75 Ω, and in the practical application of RFID, the impedance of label antenna may be no longer 50 Ω or 75 Ω, and antenna has the intrinsic impedance of self.The antenna frequency band of general RFID label is narrower, and directive gain does not reach requirement, adds complex-shapedly, is arranged on label extremely inconvenient.So, under the restriction of the conditions such as small size, low cost, make label antenna reach good impedance matching with circuit, and antenna frequency band is wide, directive gain will be got well, be have certain challenging.
Utility model content
The purpose of this utility model provides a kind of RFID label with folded dipole antenna with regard to being in order to address the above problem.
The utility model is achieved through the following technical solutions above-mentioned purpose:
The utility model comprises G2 chip, folded dipole antenna, medium substrate and pad, described G2 chip is installed on the center of described medium substrate, described pad is 2, and the two ends of described folded dipole antenna are connected with the two ends of described G2 chip by two described pads respectively.
Further, described folded dipole antenna is comprised of signal gain device and impedance-matching device, described signal gain device is triangle, described impedance-matching device is rectangle, described signal gain device is connected with the signal input part of described impedance-matching device, the signal output part that the signal output part of described impedance-matching device is described folded dipole antenna.
The beneficial effects of the utility model are:
The utility model is a kind of RFID label with folded dipole antenna, and the signal gain device of label antenna has wider frequency band and directive gain preferably, and physical construction of the present utility model is simple, is convenient to install; The impedance-matching device of antenna has good impedance and adjusts space, can change and match according to the circuit impedance of chip.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1: the utility model comprises G2 chip 2, folded dipole antenna 3, medium substrate 1 and pad 6, G2 chip 2 is installed on the center of medium substrate 1, pad 6 is 2, the two ends of folded dipole antenna 3 are connected with the two ends of G2 chip 2 by two pads 6 respectively, folded dipole antenna 3 is comprised of signal gain device 4 and impedance-matching device 5, signal gain device 4 is triangle, impedance-matching device 5 is rectangle, signal gain device 4 is connected with the signal input part of impedance-matching device 5, the signal output part of impedance-matching device 5 is the signal output part of folded dipole antenna 3.The signal gain device 4 of folded dipole antenna 3 has wider frequency band and directive gain preferably, adds that its physical construction is simple, is convenient to install; The impedance-matching device 5 of folded dipole antenna 3 has good impedance and adjusts space, can change and match according to the circuit impedance of chip.
Claims (2)
1. the RFID label with folded dipole antenna, it is characterized in that: comprise G2 chip, folded dipole antenna, medium substrate and pad, described G2 chip is installed on the center of described medium substrate, described pad is 2, and the two ends of described folded dipole antenna are connected with the two ends of described G2 chip by two described pads respectively.
2. the RFID label with folded dipole antenna according to claim 1, it is characterized in that: described folded dipole antenna is comprised of signal gain device and impedance-matching device, described signal gain device is triangle, described impedance-matching device is rectangle, described signal gain device is connected with the signal input part of described impedance-matching device, the signal output part that the signal output part of described impedance-matching device is described folded dipole antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320372803.0U CN203444508U (en) | 2013-06-26 | 2013-06-26 | RFID tag with folded dipole antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320372803.0U CN203444508U (en) | 2013-06-26 | 2013-06-26 | RFID tag with folded dipole antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203444508U true CN203444508U (en) | 2014-02-19 |
Family
ID=50095538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320372803.0U Expired - Fee Related CN203444508U (en) | 2013-06-26 | 2013-06-26 | RFID tag with folded dipole antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203444508U (en) |
-
2013
- 2013-06-26 CN CN201320372803.0U patent/CN203444508U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20140219 Termination date: 20140626 |
|
| EXPY | Termination of patent right or utility model |