CN212011244U - RFID handset reader-writer antenna structure - Google Patents
RFID handset reader-writer antenna structure Download PDFInfo
- Publication number
- CN212011244U CN212011244U CN202021254886.XU CN202021254886U CN212011244U CN 212011244 U CN212011244 U CN 212011244U CN 202021254886 U CN202021254886 U CN 202021254886U CN 212011244 U CN212011244 U CN 212011244U
- Authority
- CN
- China
- Prior art keywords
- rfid
- antenna
- shell
- handset
- handheld
- Prior art date
- 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
Links
Images
Landscapes
- Support Of Aerials (AREA)
Abstract
The utility model discloses a handheld machine reader-writer antenna structure of RFID, including epitheca, drain pan, logical groove, shift knob, handheld machine mainboard, RFID _915MHz antenna and battery jar. The utility model has the advantages that: by adopting a directional yagi antenna form and a coupling feed mode, the actual measurement distance of the handset is increased from 4M to 18M through true prevention and sample actual measurement verification, and meanwhile, the antenna is proved to adopt the directional form and the coupling feed mode so as to effectively enhance the performance of the antenna.
Description
Technical Field
The utility model relates to an antenna specifically is a handheld machine read write line antenna structure of RFID belongs to signal transmission equipment technical field.
Background
The RFID handheld reader-writer combines a radio frequency technology (RF) to achieve dynamic data reading and collection, and combines a wireless network technology to implement transmission to third-party equipment or a background system, has the characteristics of remote reading, easy portability, quick group reading and the like, and is mainly applied to the application fields of production and manufacturing, logistics management, warehousing management, tracking and tracing, power equipment inspection, transportation, agricultural monitoring, small payment, enterprise and school one-card communication, member management and the like. An antenna is an electronic device that transmits or receives electromagnetic waves. The necessary communication is provided between the transceiving device and the medium transmitting the radio-electromagnetic waves, and the antenna converts the electromagnetic waves propagating along the transmission line (e.g. parallel twin wires) into electromagnetic waves propagating in free space. The antenna is an important component in a wireless communication system, and the quality of the antenna performance directly affects the reading and writing distance of a reader-writer.
For the existing antenna, the receiving distance is short: ordinary antenna equipment and label distance are in 10 meters when being, and data can be interrupted and read, need adjust the reading direction outside 10 meters and just can acquire, and its two, the radiating surface scatters: the success rate of the identification of the common antenna equipment and the label is not ideal, the data can be identified only by repeatedly transmitting, the time is consumed, and the antenna has weak resistance: the conventional antenna device and tag identification are affected by the environment and the resistance is deteriorated.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is just to provide a handheld machine reader-writer antenna structure of RFID for solving above-mentioned problem.
The utility model discloses a following technical scheme realizes above-mentioned purpose: an RFID handset reader-writer antenna structure comprises a handset shell, a handset main board and an RFID _915MHz antenna; the handheld machine shell comprises an upper shell and a bottom shell, the upper shell is fixedly connected with the bottom shell through screws, a handheld machine mainboard and an RFID _915MHz antenna are arranged in the handheld machine shell, the handheld machine mainboard is fixedly mounted on the inner wall of the upper shell through screws, the RFID _915MHz antenna is fixedly mounted on the inner wall of the bottom shell through screws, the handheld machine mainboard is connected with the RFID _915MHz antenna through connecting wires, and a through groove is formed in the upper end of the upper shell.
As a further aspect of the present invention: the upper shell of the hand-held machine is provided with a switch button, and the switch button is connected with the main board of the hand-held machine through a wire.
As a further aspect of the present invention: a battery jar is arranged inside the bottom shell of the handheld shell and is positioned below the RFID _915MHz antenna.
As a further aspect of the present invention: the RFID-915 MHz antenna adopts yagi directional radiation.
As a further aspect of the present invention: the RFID-915 MHz antenna conducts electric energy in a coupling feeding mode.
The utility model has the advantages that: this handheld machine read write line antenna structure of RFID reasonable in design adopts directional yagi antenna form and coupling feed mode, verifies through preventing really and the actual measurement of sample, and the actual measurement distance of handheld machine increases from 4M to 18M, also proves simultaneously that the antenna adopts the performance that directional form and coupling feed mode can effectual reinforcing antenna.
Drawings
FIG. 1 is a schematic view of the appearance structure of the present invention;
fig. 2 is the schematic view of the split structure of the present invention.
In the figure: 1. upper casing, 2, bottom casing, 3, logical groove, 4, shift knob, 5, handheld mainboard, 6, RFID _915MHz antenna and 7, battery jar.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, an antenna structure of an RFID handset reader/writer includes a handset housing, a handset main board 5, and an RFID _915MHz antenna 6; the handheld machine shell comprises an upper shell 1 and a bottom shell 2, the upper shell 1 and the bottom shell 2 are fixedly connected through screws, a handheld machine mainboard 5 and an RFID _915MHz antenna 6 are arranged in the handheld machine shell, the handheld machine mainboard 5 is fixedly installed on the inner wall of the upper shell 1 through screws, the RFID _915MHz antenna 6 is fixedly installed on the inner wall of the bottom shell 2 through screws, the handheld machine mainboard 5 is connected with the RFID _915MHz antenna 6 through a connecting wire, and a through groove 3 is formed in the upper end of the upper shell 1.
Install shift knob 4 on the epitheca 1 of cell-phone shell, just shift knob 4 is connected through the wire with handheld machine mainboard 5, realizes the switching of this handheld machine read write line.
A battery jar 7 is arranged inside the bottom shell 2 of the shell of the handheld device, the battery jar 7 is positioned below the RFID _915MHz antenna 6, and a battery is arranged in the battery jar 7 so as to supply power to internal components of the reader-writer of the handheld device.
The RFID _915MHz antenna 6 adopts yagi directional radiation, and the directional antenna has concentrated radiation energy, so that the transmission distance is longer than that of spherical waves, and the concentrated radiation capability of the antenna is improved.
The RFID-915 MHz antenna 6 conducts electric energy in a coupling feeding mode, so that one element obtains energy under the condition of not directly contacting with an electric energy conduction system, the impedance bandwidth of the antenna is widened, and the radiation efficiency of the antenna is increased.
The working principle is as follows: when the antenna structure of the RFID handset reader-writer is used, the handheld terminal emits electromagnetic waves in a specific area, and the size of the area depends on the size of the antenna and the working frequency. An LC series LC resonance circuit is arranged in the radio frequency card, and the frequency of the LC series LC resonance circuit is the same as the frequency transmitted by the handheld terminal. When the radio frequency card passes through the area, the LC resonance circuit generates resonance under the influence of electromagnetic waves, so that electric charges are generated in the capacitor. At the other end of the capacitor, the electronic pump sends the charge in the capacitor to another capacitor for storage. When the charge reaches 2V, the capacitor can be used as a power supply to provide working voltage for other circuits, and data in the card can be transmitted out or data of the handheld terminal can be accessed.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. An RFID handset reader-writer antenna structure comprises a handset shell, a handset main board (5) and an RFID _915MHz antenna (6); the method is characterized in that: the handheld shell comprises an upper shell (1) and a bottom shell (2), the upper shell (1) is fixedly connected with the bottom shell (2) through screws, a handheld mainboard (5) and an RFID _915MHz antenna (6) are arranged in the handheld shell, the handheld mainboard (5) is fixedly installed on the inner wall of the upper shell (1) through screws, the RFID _915MHz antenna (6) is fixedly installed on the inner wall of the bottom shell (2) through screws, the handheld mainboard (5) is connected with the RFID _915MHz antenna (6) through connecting wires, and a through groove (3) is formed in the upper end of the upper shell (1).
2. The RFID handset reader antenna structure of claim 1, wherein: the mobile phone is characterized in that a switch button (4) is installed on an upper shell (1) of the shell of the mobile phone, and the switch button (4) is connected with a main board (5) of the mobile phone through a wire.
3. The RFID handset reader antenna structure of claim 1, wherein: a battery jar (7) is arranged inside the bottom shell (2) of the shell of the handheld device, the battery jar (7) is located below the RFID _915MHz antenna (6), and a battery is installed in the battery jar (7).
4. The RFID handset reader antenna structure of claim 1, wherein: the RFID-915 MHz antenna (6) adopts yagi directional radiation.
5. The RFID handset reader antenna structure of claim 1, wherein: the RFID-915 MHz antenna (6) conducts electric energy in a coupling feeding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021254886.XU CN212011244U (en) | 2020-07-01 | 2020-07-01 | RFID handset reader-writer antenna structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021254886.XU CN212011244U (en) | 2020-07-01 | 2020-07-01 | RFID handset reader-writer antenna structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212011244U true CN212011244U (en) | 2020-11-24 |
Family
ID=73402919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021254886.XU Expired - Fee Related CN212011244U (en) | 2020-07-01 | 2020-07-01 | RFID handset reader-writer antenna structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212011244U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2022071806A (en) * | 2020-10-28 | 2022-05-16 | エーパルステクノロジー | Portable RFID reader including cross Yagi antenna |
-
2020
- 2020-07-01 CN CN202021254886.XU patent/CN212011244U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2022071806A (en) * | 2020-10-28 | 2022-05-16 | エーパルステクノロジー | Portable RFID reader including cross Yagi antenna |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWM459635U (en) | Receiving end elements for near field communication and receiving device comprising the same | |
| CN208385624U (en) | A kind of RFID anti-metal tag antenna and RFID anti-metal tag | |
| CN103198283A (en) | Harmonic radio frequency identification system | |
| CN212011244U (en) | RFID handset reader-writer antenna structure | |
| US9317798B2 (en) | Inverted F antenna system and RFID device having same | |
| CN201298234Y (en) | Reader device for near field radio-frequency communication | |
| CN109407369A (en) | A kind of liquid crystal display die set and intelligent terminal | |
| CN107992924A (en) | A kind of solar electronic label | |
| CN201303048Y (en) | Microwave range dielectric resonator RFID tag antenna capable of working on metal surfaces | |
| US8228236B2 (en) | Inverted F antenna with coplanar feed and RFID device having same | |
| CN212604911U (en) | Electronic license plate, non-motor vehicle and radio frequency identification system | |
| US9837700B2 (en) | Antenna device and portable electronic device | |
| CN201117815Y (en) | Low cost broad band small volume high gain linear polarization antenna | |
| Chen et al. | RFID range extension with low-power wireless edge devices | |
| Lan et al. | A novel UHF-RFID tag using a planar inverted-F antenna mountable on the metallic objects | |
| CN207752488U (en) | A kind of RFID handheld devices | |
| CN210244367U (en) | Radio frequency identification system is examined to printing label articles for use | |
| TWI418494B (en) | A planar loop antenna for uhf rfid tag on the plastic pallets | |
| CN201868559U (en) | Radio Frequency Identification (RFID) reader/writer antenna and handheld RFID reader/writer | |
| CN101944189A (en) | Radio- frequency identification tag | |
| CN213518320U (en) | Double-interface RFID (radio frequency identification) tag | |
| CN219958248U (en) | UHF RFID smart card capable of being recognized remotely | |
| CN109478722A (en) | Antenna with multiple resonance coupling circuits | |
| CN221281545U (en) | Double-frequency electronic tag of metering box | |
| CN219936424U (en) | Dual-port passive anti-metal tag device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20201124 Termination date: 20210701 |